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Crop Plant News2-4-02 Clemson holds small farm conference 1-16-02 National honor goes to peach researcher 9-7-01 Officials break ground at Edisto Research Center 9-6-01 Growing crops for wildlife creates nest egg for farmers 8-3-01 Clemson develops first DNA test for Bt resistance in pests 7-2-01 EPA officials meet with peach growers at Clemson 4-20-01 Pricey peaches support research 4-20-01 Peach growers, universities sign landmark agreement 11-24-98 New USDA-CU vegetable research facilities announced 10-14-98 New cropping system boosts soybean yields 4-14-97 Canola contract gives growers protection 7-14-96 CU research protects peach trees from cold damage 4-12-96 CU receives trademark on peach rootstock variety
DATE: 2-4-02 CONTACT: Geoff Zehnder, 864-656-6644 zehnder@clemson.edu WRITER:
Dave L'Heureux, The State newspaper CLEMSON TO HOLD SMALL FARM CONFERENCE CLEMSON -- Clemson University will hold a two-day conference this month on the sustainability of S.C. family farms, forests and horticulture. The conference will run Feb. 25 and 26. It will focus on how smaller farms can survive by growing specialty produce for niche markets. "The 200-acre farm can't compete against big midwestern growers when it comes to growing regular soybeans," said Geoff Zehnder, coordinator of the Sustainable Agriculture Program at Clemson. To survive, and even thrive, the small farmer might look at developing niche products for niche markets. "He might consider organic crops, or even nongenetically modified, crops, for markets that want them," said Zehnder, a professor of entomology. Zehnder noted scientists in South Carolina also have been studying how to grow medicinal herbs, such as Feverfew, that are superior to those imported from overseas. "Alternate crops can help the smaller farms keep going," he added. The talk about alternate crops brings to mind the thought that South Carolina once was a national source of indigo, rice and potatoes. "We've gone through more kinds of crops than Iowa," said James Fischer, director of Clemson University agriculture and forestry research. "Crops fade over time and are replaced by other crops. We have to look at all of this." The conference will bring in Clemson research and extension personnel, along with six out-of-state experts, to assess the current state of South Carolina's smaller farms and forests. They will seek to establish a vision to preserve both and then map a way to realize their vision, Zehnder said. The conference will take place at the Clemson University Outdoor Lab on the shores of Lake Hartwell. Another Clemson professor, Hal Harris, predicts a 25 percent decline in this year's federal loan deficiency payments to farmers. The payments help make up for low commodity prices. Some, like cotton, carry prices that are lower than farmer's production costs. Harris forecasts that farm income in South Carolina will rise for most crops -- cotton is a notable exception -- this year. Unfortunately, the higher market prices will cut into the federal payments, meaning farmers still could lose on net income this year. Harris also noted that the U.S. Department of Agriculture has not included any supplemental income payments in this year's forecasts, unlike 1999-2001. As a result, the USDA net income forecasts call for net farm income of just $40.6 billion this year -- down 18 percent from last year's $49.3 billion in net farm income. Julian Barton, senior project manager for the S.C. Farm Bureau Federation, will become executive director of the Carolinas Golf Course Superintendents' Association in mid-February. The association, based in Liberty, is a professional group of people who oversee and maintain golf courses in North and South Carolina. It has about 1,500 members in both states. Barton, 47, graduated from Clemson University with a B.S. in Agricultural Economics. END
DATE: 1-16-02
CONTACT:
Greg Reighard, 864-656-4962 WRITER: Peter Kent, 864-656-0937 pkent@clemson.edu NATIONAL
HONOR GOES TO
PEACH RESEARCHER CLEMSON - For saving peach growers
millions of dollars, Clemson University researcher Greg Reighard was honored
recently by the National Peach Council. At the industry's
Jan. 12 convention in Savannah, Ga., council president John Lott presented
the annual Carroll R. Miller Award to Reighard. The award recognizes and
encourages noteworthy research to improve marketing and utilization of
peaches and peach products. "Greg was
nominated by the S.C. Peach Growers Council for his dedication and contributions
to the peach industry," said Chalmers Carr, council treasurer and research
committee chairman. "His work with the Guardian root stock has changed
the outlook for Carolina peach growers. We are now able to plant trees
without the worry of their dying from peach tree short life disease. It
used to be the most devastating peach tree problem in South Carolina." Southeastern
peach sales run as much as $75 million annually. The 20 commercial packers
in South Carolina and Georgia, along with fewer than 100 smaller peach
operations, comprise the bulk of the regional market. California is the
nation's top peach grower. A year after earning his PhD from the Michigan State University in 1984, Reighard came south. During his 17 year career at Clemson, Reighard's most visible research project has been co-development of a root stock that is more tolerant to peach replanting problems than the commercial standards, such as the Lovell and Halford tree varieties. The research
in conjunction with USDA scientists has resulted in a seedling-propagated
root stock trademarked GuardianTM Brand BY520-9 that is now the most widely
planted root stock in South Carolina. It has prevented loss of thousands
of trees each year to peach tree short life since the rootstock's introduction
in 1994. The results have been increases in tree longevity and fruit production
in South Carolina valued at between $500,000 and $3 million. Working as both a researcher and agriculture extension consultant at Clemson, Reighard serves as the liaison between the South Carolina peach industry and the university. His relationship has been important in advising the S.C. Peach Council on needed support for research and extension activities. Council
members have raised approximately $100,000 annually for peach research
and promotion since 1997.
Clemson scientists have used the money for projects that have enabled
growers to reduce pesticide use, prolong the lives of peach trees, improve
irrigation practices and combat fruit-tree diseases. Reighard
also has been involved in setting up a program Clemson, bringing peach
growers once or twice a year to see current research and meet with university
leaders, as well as faculty and staff. This has aided communication between
the university and the industry. "This is
a wonderful honor for Dr. Reighard," said John Kelly, Clemson vice president
for agriculture and public service activities.
"It spotlights the university's commitment to being a partner with
South Carolina's businesses and fostering strong communities around the
state." END
DATE:
9-7-01 CONTACT:
Steve Meadows, (803) 284-3343; smdws@clemson.edu WRITER:
Tom Lollis, (803) 284-3343; tlollis@clemson.edu OFFICIALS BREAK GROUND FOR NEW FACILITY
AT EDISTO REC BLACKVILLE -
Clemson University broke ground on Thursday for a $4 million upgrade for
Edisto Research and Education Center. "We decided to
do it during our Fall Field Day so we could share the celebration with
farmers and others who have been the grassroots supporters for a new facility
here," said Steve Meadows, resident director at Edisto REC. He said construction
will begin next spring. When completed, the 18,000 square foot facility
will provide office space for 12 faculty, a 200-seat auditorium and two
state-of-the-art greenhouses. That's a far
cry from 1937, when the Edisto Experiment Station opened with 200 acres,
three researchers, one tractor, six mules and buildings constructed by
President Franklin D. Roosevelt's Works Progress Administration, better
known as the WPA. The Charleston
architectural firm of Thomas & Denziger has designed the new facility
to blend in with the historic structures, three of which form the nucleus
for the Agricultural Heritage Center and a future Discovery Center for
the S.C. Heritage Corridor. On hand Thursday
were Les Tindal, South Carolina commissioner of agriculture, and several
legislators who worked to see that funds for the project were included
in the General Assembly's bond bill in 1999. Tindal said the
long-awaited project will help Edisto REC continue its support for South
Carolina agriculture. "I owe any success I've had in farming...to the
Clemson Extension Service and research facilities such as this one," he
said. District 40 Sen.
Brad Hutto, a Democrat who represents Orangeburg, Barnwell, Allendale
and Hampton Counties, said that agriculture has long been a backbone of
growth in South Carolina. Dist. 91 Rep.
Lonnie Hosey of Barnwell added his support. Hutto and Hosey
were joined in a ceremonial turning of a shovel of soil by: Dist. 69 Rep.
Bill Riser of Lexington County; Dist. 90 Rep. Thomas Rhoad, representing
Bamberg, Colleton and Barnwell counties; Dist. 3 Rep. Bud Webb of Pickens
County; Dist. 39 Rep. Marion Frye, representing Lexington and Saluda counties;
Dist. 81 Rep. Skipper Perry of Aiken County; Dist. 87 Rep. Larry Koon
of Lexington County; Steve Meadows, resident director at Edisto REC; and
Jim Fischer, director of Agriculture and Forestry Research at Clemson
University. Ken Rentiers
Jr., state executive director of the U.S. Department of Agriculture's
Farm Service Agency, offered his support for the Edisto REC project as
well. "It's a good
facility, and it's about to be a great facility," he said. "The USDA has
a great ongoing relationship with the Clemson Extension Service. That
will continue, and we plan to put some of our resources into this facility
as well." Meadows said
that while some structures built during the last 50 years will be demolished,
others will be upgraded. He said that the new auditorium will not only
accommodate agricultural production meetings and public educational programs
but the community will benefit from it, as well. More than 200 persons attended the Fall Field Day on Thursday to hear the latest on cattle, peanuts, cotton, soybeans and pest management. END
DATE:
9-6-01 CONTACT:
Ed Murdock, (843) 662-3526 emrdck@clemson.edu WRITER:
Peter Kent, (864) 656-0937 pkent@clemson.edu GROWING CROPS FOR WILDLIFE CAN
CREATE NEST EGG FOR FARMERS CLEMSON
-- Ed Murdock is helping farmers develop a new crop -- hunters. The Clemson
University weed-control researcher's work on herbicides led to an uncharted
path for him: raising crops that attract game, providing farmers with
a secondary source of income from leasing hunting rights and setting up
seasonal bird shoots. "Wildlife
enhancement offers benefits to farmers and hunters," said Murdock.
"As game areas get more pressure and private woodlands are developed,
sportsmen are finding their hunting options limited. Farmers have the
land and with a relatively small investment they can improve game opportunities
that hunters will pay for." The
idea is hardly new. Hunting resorts, where guests try gunning skills at
quail, turkey or deer, long have been commercial ventures. Farmers, however,
have not developed a similar commercial connection with hunters. The relationship
has been more casual with farmers giving free permission to hunt or informally
arranging hunts for modest fees. "Farmers
make their living from their land," said Murdock. "They've got
land. They've got wildlife. It's a good way to make money that helps them
weather crop yields and price swings." The
key to making wildlife enhancement work is, like all business ventures,
return on investment. This is where Murdock's weed research comes in.
In his research plots at the Clemson Pee Dee Research and Education Center
in Florence, Murdock has planted stands of sunflowers, sesame and cowpea,
then tested herbicides already used for cotton, corn and other row crops
at varying strengths to find out which will kill weeds without killing
the plants. "Doves
want clear soil, and the procedure is pretty much the same as for row
crops," said Murdock. "You plow, plant and spray to control
weeds like morning glories, nutsedge, pigweed and grasses. You can use
the tools you have on hand. Next
year, Murdock will replicate his project to check the data on herbicides
and dilutions. He also plans to add new crops: Egyptian wheat, brown top
millet, Japanese millet and chufa. Coastal
Plain farmers who want to see the project and talk with Murdock can attend
the Pee Dee Center's field day Sept. 13. For more information about field
day activities, contact Ben Kittrell, PDREC director, at (843) 662-3526,
Ext. 259. "I
have had a lot of interest in the project, even though I'm still collecting
data,'' said Murdock, adding that seed companies, hunting plantations
and wildlife organizations have offered to help fund his project. Until
he is confident of his results, Murdock prefers going it alone. Some
farmers have begun to look into the prospects of growing wildlife food
crops. Edwin Dargan, a Florence farmer, already has moved ahead, planting
60 acres of sunflowers and other game-attracting crops. "I
have a group we call the Dove Club," said Dargan. "I sell memberships
for Saturday and Wednesday hunts. It's a good side income." South
Carolina dove season opened Sept. 1, and Dargan has filled the club's
membership. It
is only a matter of time before wildlife crop growing becomes a staple
for farmers, says Murdock. "It's good for the farmers. It's good
for the hunters. Everybody wins, except the doves," said Murdock. END
DATE: 8-3-01 CONTACT: Linda Gahan, (864) 656-3621 glinda@clemson.e WRITER: Peter Kent, (864) 656-0937 pkent@clemson.e SCIENCE MAGAZINE REPORTS DNA TEST FOR BT RESISTANCE DEVELOPED BY CLEMSON RESEAR CLEMSON -- Science, America's most respected research journal, in the Aug. 3 issue reported the breakthrough findings of a scientific team led by a Clemson University researcher. The results of the team's work may lead to multi-million dollar savings to the cotton industry and prolong the useful life of crops genetically modified to resist pest Lead author Linda J. Gahan, an assistant professor of biological sciences at Clemson, and co-authors Fred Gould from North Carolina State University and David G. Heckel of the University of Melbourne, Australia, found an efficient method to track genetically the tobacco budworm's efforts to become resistant to biotechnological pest contro "We have identified a gene in the budworm which binds Bt-toxin produced in genetically modified plants like cotton," Gahan said. "If the gene is altered or defective in the insect, the insect will not bind the toxin and effectively becomes resistant to it. Knowing the gene involved in resistance allows us to develop a DNA test for monitoring resistance in field population of insect." The tobacco budworm is a major pest of cotton and other field crops in the Americas. Over the years, it has developed resistance to chemical pesticides. The problem was solved through biotechnology when researchers added a gene to cotton from bacteria that naturally produces an insect toxin. The result was a genetically modified species, called Bt cotton, that resists the tobacco budworm and other insec Concerns took shape that the battle against the budworm was not a decisive victory. Under laboratory conditions, strains of tobacco budworms could be made Bt-resistant by feeding the insects a high-dose diet of the toxin. Federal regulators acted. They required non-Bt cotton to be planted alongside Bt cotton, diminishing the chances of budworms taking a Bt-rich diet in the fields. The question was how to monitor the situation, catching Bt resistance before it ended the usefulness of Bt cot Developing an early-detection method had proved to be extremely difficult prior to Gahan's and her colleagues' breakthrough. Through DNA analysis, the researchers found that disruption of a gene could be linked to Bt-resistance. "This is a first step to understanding the development of Bt-resistance by insect pests," Gahan said. "This discovery will open the door for other researchers and monitoring governmental agencies to assess resistance mechanisms and management strategies in insect pests. It will help us keep a handle on the development of insect resistance to Bt-genetically modified pla Gahan came to Clemson University in 1988 as an assistant professor/research associate in the biological sciences department. She and Heckel began mapping the Heliothis virescens (tobacco budworm) genome in 1991. Heckel left in 1999 to become a senior lecturer in the genetics department at the University of Melbourne. Prior to leaving Clemson, he received funding from the National Science Foundation to find the Bt-resistant gene in the tobacco budworm, resulting in the research conducted by Gahan, Heckel and Gould over the past two ye Gahan earned a bachelor's degree in chemistry at Bucknell University in 1964 and a Ph.D. in biochemistry at the University of Illinois in 196 END
DATE: 7-2-01 CONTACT: Desmond Layne, (864) 656-4961
dlayne@clemson.edu WRITER: Peter Kent, (864) 656-0937
pkent@clemson.edu PEACH GROWERS SEEKING TO SAVE PESTICIDES
MEET WITH EPA OFFICIALS HOSTED BY CLEMSON CLEMSON -- Pesticides -- "can't
live with 'em, can't live without 'em" -- to borrow a phrase. Eight
researchers from the U.S. Environmental Protection Agency heard last
week from growers and Clemson University agriculture experts about the
need for chemicals that control pests attacking trees and fruit. Federal
regulators must re-certify the insecticides, revising the rules if data
points to health risks for orchard workers. Tightening the current restrictions
would be calamitous, say growers. They already have had a number of
insecticides rendered unusable because new regulations made the chemicals
all but impossible to use during growing and harvesting seasons. Growers
now worry if Imidan and Guthion, two key insecticides, will become useless.
EPA officials will complete reassessments of the products by the end
of August 2001. Pesticides are chemicals used to control
various pests in commercial peach orchards. In South Carolina, depending
on the severity of the pest outbreak in an orchard, growers may choose
to use insecticides (insect control), fungicides (fungus control), bactericides
(bacteria control) or herbicides (weed control). The tools enable producers
to provide high quality fruit for the consumer. Without them, peach
production in South Carolina would not be possible. More than 20 thousand pesticide products
are registered for use in the United States. Under federal law, the
EPA is largely responsible for regulating the sale and use of
pesticides, as well as the allowable levels of pesticides
in or on food. When orchards are sprayed with the
insecticide, workers must wait three days before they can return to
tending the fruit. Three days can seem like a lifetime to a peach grower.
Early in the season, young peaches are thinned, keeping the robust fruit
and eliminating the undersized ones. The process provides more nutrients
for the remaining peaches. The longer the ''runts'' are left on the
tree, the less chance for the stronger peaches to grow large. "That's the crux of the problem,"
said Lois Rossi, director of the special review and registration division
of the EPA pesticide program. "The re-entry interval before it
is safe for workers to go back into the orchards is what we must consider.
If time is added to reduce the health risk, it may decrease the insecticide's
benefit to the grower. We are responsible for setting a balance between
risk and benefit. Finding the balance between protection
and profitability involves weighing a number of factors, including availability
of less-harmful pesticides, alternative pest management approaches and
industry reliance on the chemical. Growers gave the EPA team an earful. "We don't have effective options,"
said Chalmers Carr, peach grower from Ridge Springs, S.C. Other insecticides,
such as pyrehtroids, kill some insects but allow others to flourish.
"And keeping us out of the orchards for a longer time could spell
disaster," he said. In Chesnee, James Cooley talked about
how he minimizes using insecticides. "Everyday we walk the orchards,
scouting for insects, and when we find them, then we use pesticides,"
he said. The practice of targeting insect outbreaks
instead of generalized spraying is part of an integrated pest management
plan. The approach relies on attacking an insect at specific points
in its life cycle, and uses the insect's behavior as a way to defeat
it. Cooley uses pheromone strips to combat Oriental fruit moths. The
strips send a sexual attraction odor that confuses the male, reducing
his chances of finding a female to mate with. Consequently the moth
population in an orchard decreases. Clemson horticulture experts Desmond
Layne and Greg Reighard, along with Clemson and University of Georgia
entomologists Clyde Gorsuch and Dan Horton, respectively, briefed E.P.A.
officials on current peach research projects in the region. Root rots,
mites, fungi and bacteria join insects as threats to the peach industry. A veteran of EPA fact-finding tours,
Rossi was especially impressed with the trip to South Carolina. "Focusing
on one commodity gave us a chance to understand the impact to the area,"
she said. "I also noticed the level of expertise of the researchers.
It works well for us to get their cards, so we can call them when we
need answers." END CONTACT: Gary McMahan, (864) 656-0681 gmcmhn@clemson.edu S.C. Peach Growers: Chalmers Carr,
(803) 685-5381 chalmers@titanfarms.com WRITER: Peter Kent, (864) 656-0937
peter.kent@clemsonews.clemson.edu PRICEY PEACHES SUPPORT AG RESEARCH AT CLEMSON UNIVERSITY CLEMSON
- S.C. peaches typically selling at wholesale for $12 per box soared
to $77 recently. What's more, wholesalers bid on the peaches sight unseen:
The 2001 crop won't be in for months. The peach market gone haywire? No.
In fact, consumers will benefit from the high prices. These were very
special peaches sold at a fund-raising auction, the proceeds from which
help to support research at Clemson University to improve peach production
and to promote the peach industry. "We certainly appreciate the support,"
said Jim Fischer, dean of agriculture and forestry research at Clemson.
"The money is a strong investment that will lead not only to scientific
advances in the industry but also to increasing prosperity of the state.
Making this kind of contribution through research is part of our public
service mission to people of South Carolina." The auction held late last month was
part of the 6th annual Peach Auction and Update at the Crown Plaza Resort
on Hilton Head Island. Nearly 120 peach growers, packers, industry suppliers,
commercial buyers, agricultural researchers and guests met to discuss
the business and get a forecast for the upcoming year. Growers expect
the 2001 peach crop to be about the same as last year's 75 million pound
harvest. The industry's real gain, however,
was in research money. This year's auction netted more than double the
amount raised at previous annual meetings, with the amount doubling
to $100,000, from $50, 000 last year. Clemson will get about 75 percent
of the research money - the university has received about $150,000 total
in the last five years - to find ways to help growers from North Carolina
to Florida. "This year's auction was a hands-down
success, giving a big boost to the research effort," said Chalmers Carr,
council treasurer and research committee chairman. "Buyers from 17 chain
stores along the East Coast, including one from Chicago, generously
supported our industry. Also, Georgia Pacific helped out, donating peach
packing boxes for the auction worth $15,000. We cannot thank them all
enough for their support." END
DATE:
4-20-01 CONTACT: Clyde Gorsuch, (864) 656-5043 cgrsch@clemson.edu WRITER: Peter Kent, (864) 656-0937
peter.kent@clemsonews.clemson.edu PEACH GROWERS, UNIVERSITIES REACH HISTORIC AGREEMENT CLEMSON
- For South Carolina and Georgia peach growers, it was the pits. Two
years ago, federal officials banned Penncap-M, a pesticide the growers
relied on. The result was growers were forced to use less effective
chemicals, leading to a dramatic rise of harmful insects and a decrease
in peach production. In a first-of-its-kind pact, growers
in the two states and scientists at Clemson University and the University
of Georgia (UGA) have joined forces to battle the bugs. The goal is to find new ways to control
the insects - mites and scale - that sap the strength from the trees
and the growers' bottom lines. Southeastern peach sales run as much
as $75 million annually. The 20 commercial packers in South Carolina
and Georgia, along with fewer than 100 smaller peach operations, comprise
the bulk of the regional market. South Carolina and Georgia peach councils
will contribute $24,000 each over three years ($8,000 per year) to underwrite
the costs for research by UGA's Dr. Dan Horton, a nationally recognized
entomologist. Clemson was selected as the research site because it had
existing peach orchards at the university's Musser Fruit Farm. Horton's research and collaboration with Clemson entomologist Clyde S. Gorsuch and other scientists at the two schools will help peach growers pinpoint insect growth cycles and apply pest controls precisely. Researchers also will evaluate chemicals and pesticide practices, ultimately enabling integrated pest management programs. Consequently, less spraying will be needed. It's a win-win outcome for the public, say industry representatives: environmentally, less pesticide is used; economically, growers will be able to hold down their growing costs. For more information, contact Chalmers
Carr (803/685-5381) of the S.C. Peach Growers Council; Duke Lane Jr.
(912/825-3592) of the Georgia Peach Council; or Bob Tyson (706/542-1060)
of the Ga. Cooperative Extension Service. END DATE:
4-12-96 CONTACT: Jim Fischer, 803/656-3140 jfschr@clemson.edu WRITER: Debbie Dalhouse, 803/656-0937 ddalhou@clemson.edu CLEMSON
RECEIVES TRADEMARK CLEMSON
-- Researchers with the South Carolina Agricultural Experiment Station
at Clemson University have developed a new variety of peach tree rootstock
that is saving peach growers millions of dollars each year. Since
the mid-1980s, peach growers in South Carolina have lost an average
of 86,000 trees and $6.5 million per year because of a condition known
as "peach tree short life." Clemson
University researchers in South Carolina worked with U.S. Department
of Agriculture (USDA) scientists in Georgia to identify the causes for
Peach Tree Short Life and then to search for a solution. They first
determined that 10 different management factors could decrease tree
death. Then they were able to prove that one of these factors, the ring
nematode, was the cause of peach
tree short life. The ring nematode is a worm-like parasite in the soil
which feeds on the tree's root system. The
Clemson researchers discovered the cause of the disease in the 1970s
and established that it could be controlled by a nematicide sold as
Fumazone or Nemagon. However,
further investigation showed that the active chemical in the nematicide
was a carcinogen that could contaminate the environment. Clemson research
confirmed that it did cause environmental contamination. The chemical
was subsequently removed from the market in 1979. South Carolina tree
losses nearly tripled after the nematicide was removed without having
an acceptable replacement. Next
the researchers began looking for solutions that would be both safe
for the environment and cost effective for peach growers. After more
than 15 years of research investigating other possible nematicides,
looking for natural controls and testing more than 5,000 types of rootstock,
a solution was found. The researchers identified a new rootstock variety
that is able to withstand damage from nematodes and contributes excellent
vigor to the tree. Trademarked
as Guardian
T Brand BY520-9, the variety was developed
and released jointly by the South Carolina Agricultural Experiment Station
at Clemson University and the USDA Agricultural Research Station in
Georgia. "GuardianT
Brand BY 520-9 has been provisionally released for experimental trial
and broader industry testing as a result of grower demand," explained
Michael Watkins, executive director of the South Carolina Foundation
Seed Association which is responsible for distributing seeds for plants
developed by Clemson researchers. Demand
for the new rootstock was prompted by the staggering losses that peach
growers suffered as a result of peach tree short life. By alleviating
those losses, the results of the research have more than paid for the
original investment. During
the period from 1980 - 1992, nearly
$85 million in potential income was lost by South Carolina peach growers
because of peach tree short life. This does not include the income lost
by growers in other states or countries. A total of $2.4 million in
federal grants was used to fund the research that led to development
of the GuardianT
rootstock. "If
we assume that the losses would have continued for the next 13 years
like they have for the past 13 years, the payback will be $35 for each
$1 invested in research just for South Carolina," said
Walker Miller, Clemson University plant pathologist and physiologist.
The
equivalent of a patent, called Plant Variety Protection, has been applied
for to protect the purity of the GuardianT
rootstock. Researchers are continuing to test and evaluate the current
rootstock in hopes of developing a strain that is culturally acceptable
for nurseries and will not experience the variation that is associated
with the bulk seed release that is currently available. "The
grower is likely to see some variation in performance with the interim
strains of GuardianT
rootstock," cautioned Clemson horticulturalist Greg Reighard. "But all
GuardianT
strains perform better than the current standard rootstock."
Peach
production is just one of many areas being investigated by researchers
at Clemson University. "It
is our mission to support the agricultural producers in our state and
help them develop new technology and farming practices which can improve
their productivity and profitability,"
explained Jim Fischer, director of the South Carolina Agricultural Experiment
Station that has been based at Clemson since 1889. "To
do that, we currently have more than 250 research projects under way
for a variety of agricultural products, including peaches, cotton, soybeans,
turfgrass, ornamental horticulture, forest products, horses, cattle,
poultry and catfish." END DATE:
7-14-96 CONTACT: Greg Reighard, 864/656-4962 grghrd@clemson.edu WRITER: Debbie Dalhouse, 864/656-0937 ddalhou@clemson.edu NEW
RESEARCH PROTECTS PEACH TREES FROM COLD DAMAGE CLEMSON
-- With nearly 90 percent of the 1996 South Carolina peach harvest lost
to a spring cold snap, research by a Clemson University scientist may
hold hope for more reliable yields in the future. Greg
Reighard, a horticulture associate professor with the S.C. Agriculture
and Forestry Research System at Clemson, has worked since 1988 to develop
a method for peach producers to reduce their risk of crop losses from
late spring freezes. "Bloom
delay of even a few days can protect flowers from spring freezes by
avoiding cold temperatures that are lethal to more advanced flower stages,"
Dr. Reighard explained. He
found that grafting a section of a cold-hardy peach variety to popular
fruit producing trees can delay blooming long enough to make the difference
between a viable harvest and a disastrous loss. Known
as "interstem" material because it is inserted between the roots and
the main trunk, the graft does not affect fruit size or quality. But
the interstem does pass its late blooming characteristics to the fruit-bearing
section of the tree, delaying blooms by five to nine days in Reighard's
tests. The
interstem variety being tested is called Ta Tao and came to the United
States in 1933 from northern China. Until recently, the Chinese peach
had not aroused strong interest in this country because it produced
very few flowers and was difficult to use in breeding programs. Now
however, there is new interest in the variety as interstem material. The
use of interstem material is widespread among apple producers to reduce
tree size for easier harvesting. Until now, interstem material has not
been widely used by peach producers because research data has been either
insufficient or inconclusive. The
Clemson research provides some of the needed information. Reighard found
that the use of Ta Tao interstem material did delay blooming enough
to reduce the risk of freeze damage. In addition, the technique delayed
ripening by two to six days, extending the harvest season. Other benefits
of the Ta Tao interstem included increased yield efficiency and reduced
pruning costs because fewer non-fruit bearing shoots were produced. However,
there are still more questions to be answered before the interstem material
is recommended for general use. "Disease resistance, cold hardiness
and the possible presence of a virus have not yet been adequately investigated
in Ta Tao interstem trees," Reighard noted. The
promising interstem material will not be available for commercial use
until these issues have been addressed. END
DATE: 4-14-97 CONTACT:
Dan Robinson, (803) 284-3343 drbnsn@clemson.edu WRITER: Tom Lollis, (803) 284-3343
tlollis@clemson.edu CANOLA
CONTRACT BLACKVILLE
- The Calgene Ameri-Can Seed Co. is looking for enough South Carolina
farmers to grow 18,000 acres of specialty canola next fall. That's
six times the 3,000 acres planted in the state last fall, which was
a ten-fold increase over the 300 acres planted in 1995, according to
Dan Robinson, agronomist at Clemson University's Edisto Research and
Education Center. He
said the Calgene canola varieties have been genetically engineered to
produce laurate fatty acids, a key ingredient in the manufacture of
soaps, detergents and chocolate. Most of the lauric oils consumed in
the United States come from coconut and palm kernel, grown primarily
in Southeast Asia. If
Calgene's plans to commercialize laurate canola work out, 400,000 acres
of the crop could be growing in Southeastern states within five years,
and a fourth of that could be in South Carolina, according to Robinson. He
said canola is best grown in the state's coastal plain. Cold damage
is too much of a threat in the Piedmont. Calgene is targeting the counties
of Allendale, Barnwell, Bamberg, Aiken, Edgefield, Orangeburg, Calhoun,
Clarendon and Sumter. Contracting agents are already at work in these
counties. Alan
Barbre, regional production manager for Calgene, expects the contract
for 1997 to be around $7.50 as a floor price. This means that growers
will be paid no less than $7.50 per bushel for all the acres they contract.
If the price rises during the season, they will receive the higher price.
The contract for the current crop started at $7.50 and now stands at
$8 per bushel. "Under
the acreage contract, growers won't have to worry about buying back
any shortages or selling overages in production," he said. "If
you yield 30 bushels an acre, we buy it all. If you make 42 bushels
an acre, we buy it all at the contract price." In
addition, Calgene will reimburse each producer $3 per acre for each
acre scouted by a certified canola crop consultant. Robinson
said research at Edisto and demonstrations at the Canola Production
Center in the Vance area proves good canola yields can be made in the
state. "We've
averaged around 37 bushels in plots at Edisto REC, and one grower has
made yields of 60 bushels an acre," he said. To
assist growers with production problems, Calgene has stationed Tim Covin,
an agronomist, in the Santee-Vance area. Three
delivery points have been established for the specialty canola -- Gold
Kist facilities in Vance and Johnston and the Williamson Ginnery in
Denmark. END
DATE:
10-14-98 CONTACT:
Jim Frederick, (843) 662-3526 jfrdrck@clemson.edu WRITER:
Tom Lollis, (803) 284-3343 tlollis@clemson.edu NEW CROPPING SYSTEM BOOSTS SOYBEAN YIELDS FLORENCE
-- With low prices and stagnant yields, growers on the Southeastern
Coastal Plain are beginning to wonder how much longer they can economically
afford to produce soybean and other row crops. Without question, the
region's growers need new practices that will result in higher crop
yields and lower production costs.
During the past 20 years there has been interest in using narrow
row widths (distant between rows less than 30 inches) for producing
soybean. Due to the more
equidistant spacing between plants within the row, higher yields should
occur with narrow row widths.
Since
soybean leaves shade the soil surface sooner with narrow row widths,
greater weed control should also result.
Unfortunately, researchers have only found small yield increases
with narrow row widths, usually with late plantings. Since the soil could not be cultivated, weed problems were
sometimes worse with narrow row widths. During
the early to mid 1990's, a trend began towards more double-cropped soybean
in S.C. (soybean planted after wheat harvest) and less full-season soybean.
Since double-cropped soybean is planted later than full-season
soybean, double-cropped soybean should respond more to production practices
that favor late plantings, such as narrow row widths.
During the early 1990's there was also a push to eliminate wheat
residue burning before planting double-cropped soybean due to the increased
concern for the environment and due to the growing liability associated
with smoke blowing onto highways during the burning process.
Although
using conservation tillage was recommended as a means to eliminate the
residue burning problem, there was little data to show that switching
to such practices would be more economical than using conventional production
practices. Several
Clemson University and USDA-ARS scientists met in 1993 to discuss developing
more sustainable cropping systems for late-planted double-cropped soybean.
At that time, new genetic technologies were on the horizon that
would make crop plants resistant to broad-spectrum herbicides, a potentially
big boost to grower weed control programs.
Therefore, the challenge was to develop a system that would build
upon and take advantage of the weed control benefits of these new genetic
technologies. The
answer to most of these problems appeared to be narrow row widths.
Higher plant populations are generally recommended with narrow
row widths. Therefore, soybean grown with narrow row widths should respond
more to production practices that improve soil water conditions, such
as conservation tillage. Since
cultivation is not used with narrow row widths or conservation tillage,
the new herbicide-resistant crop varieties would be a big asset for
weed control when these practices are used. The
problem with narrow row widths was how to deep till the soil.
Most Coastal Plain soils have hardpans that form just above the
clay subsoil and restrict deep rooting.
The need for deep tillage was expected to be even greater with
narrow row width systems because of the higher plant population and
greater water requirement associated with these systems.
With
narrow row widths, almost the entire topsoil would have to be loosened
because of the close plant spacing between rows.
There would also have to be minimal soil surface disturbance
if conservation tillage was to be used.
Winged deep tillage devices that lift and drop the soil were
identified as a possible solution to the deep tillage dilemma for narrow
row widths since these devices loosen almost the entire profile while
leaving most of the surface residues undisturbed. Beginning
in 1994, a research study was initiated at Clemson University's Pee
Dee Research and Education Center to compare the yield of double-cropped
soybean grown using a narrow row width, conservation tillage, and deep
tilled (winged device used) system to the yield of soybean produced
using the conventional production system of most farmers at that time.
Money was obtained from the S.C. Soybean Board to support this
research. Results from
this 3-year study showed that double-cropped soybean yields can be as
much as 80% greater with this new type of cropping system in good growing
seasons, compared to the conventional system. Subsequent
on-farm trials conducted by Clemson University scientists found one-third
higher average yields with this new type of production system.
Georgia on-farm tests conducted by University of Georgia Extension
specialists showed similar results.
Due to this research, "soybean planted with narrow row widths
has jumped from almost none just 3 or 4 years ago to more than 50% of
the S.C. soybean acres in 1998 " says SC soybean Extension specialist
Jim Palmer. These
research results laid the foundation for the Agroecology Program, a
collaborative team project initiated in 1997 involving 19 Clemson University
and USDA-ARS scientists. The
Agroecology program centers on multi-disciplinary research, Extension,
and teaching activities pertaining to developing new production systems
for several agronomically important crops grown in the region.
These new systems are focused on increasing grower profitability,
enhancing environmental conservation, improving pest management strategies,
and utilizing new genetic and mechanical technologies.
Much of this program is being supported by two new state-funded
initiatives that were begun to support research oriented towards examining
the harmonic relationships' that occur between agriculture and the environment.
As
Dr. John Kelly, Vice President for Clemson University's Public Service
Activities, points out "this type of research is critically needed
because of the important role agriculture plays in our state's economy
and because of the close proximity of our agricultural land to our state's
tourism industry along the Coast". "One
of the important objectives of the Agroecology Program is to obtain
a better understanding of the ecological and environmental benefits
of these new cropping systems" states Dr. Jim Fischer, Dean/Director
of Public Service Activities.
"We know that there are environmental benefits to these
new systems, but we don't know how much and under what conditions they
occur". Agroecology
research scientists are examining how new cropping practices affect
the quality of both our surface and ground waters and how growers may
better manage their soils to improve their soil's chemical, physical,
and biological properties. Other
areas of emphasis include how these systems affect pest insect population,
as well as beneficial insect populations (even fire ants). By
way of an advisory panel, the Agroecology Team is establishing partnerships
with those in the agriculture industry.
"It's great to see our scientists at the forefront of ag
industry, and I am proud to be a part of it" says Sam Parker, advisory
panel member and technology representative for Stucky Brothers Equipment
in Lake City, SC. "It's
great to see Clemson University developing new cropping systems that
will help our growers financially and, at the same time, maximize the
benefits of new technologies being developed by the agricultural industries"
notes regional Monsanto technical representative Stu Sherrick.
Scientists from the University of Georgia and Virginia Polytechnical
Institute are also serving on the Agroecology Advisory Panel so they
can learn first hand the progress the Team is making, thus avoiding
any duplication of research efforts among Southeastern universities.
"I
really appreciate the team approach that Clemson University has undertaken,
and I know Georgia farmers are eager to hear about the Agroecology Team's
accomplishments" says Dr. Dewey Lee, Univ. of Georgia Extension
Agronomist. The
procedures used to make narrow row widths a success story for soybean
production in South Carolina were nothing new to the Land Grant University
system: the problem was identified, partnerships were formed, solutions
were developed, Outreach programs were conducted, and the end users
adopted the new technology. And
the Agroecology Program is still building upon these successes. For
example, several scientists from different disciplines are beginning
to work together in hopes of developing varieties specifically adapted
to these new production systems.
Most of SC recommended varieties were selected for production
under wide row width culture and probably do not have the traits needed
for high yield with narrow row widths.
And
narrow row widths may also aid in improving the profitability and environmental
conservation of other crops. For
example, the team is developing a narrow row, conservation tillage,
deep-tilled production system that has the potential to increase corn
yields by 25% or more. Much
of the Team's environmental work is currently aimed at quantifying the
amount of improvement that has been made with these new practices.
This information will allow the Team members to identify areas
where further improvement can be made not only in soybean, but also
in other crops. And
others can learn from the Team's experiences.
For example, such a diverse program presented itself to be a
golden opportunity for student training.
This past summer, the Agroecology Team initiated an undergraduate
student internship program to give students working experience in multi-disciplinary
research. Both Clemson
University and Francis Marion University students participated in the
program. As all the interns noted, it quickly became apparent that there
was so much more potential for progress to be made when scientists work
together. Team members
are also in the initial planning stages to develop an undergraduate
class in Agroecology, using the team's research results as the foundation
for the class. One of the main reasons the Agroecology Team came about was due to the success of the narrow row soybean. The Team members are excited about the many opportunities that exist for even more successes in the future. In future issues of the Agroecology Newsletter, we will keep you informed of these successes and how they came about. END DATE:
11-24-98 CONTACT: Merle Shepard, (843) 766-5761 WRITERS: Tom Lollis, (803) 284-3343 Debbie
Dalhouse, (864) 656-0937 NEW
CLEMSON - USDA VEGETABLE RESEARCH CHARLESTON
- Construction begins early next year on new research facilities for
vegetable scientists from the U.S. Department of Agriculture and Clemson
University in Charleston. Research findings from these scientists are
used by growers throughout the Southeast, from North Carolina to Texas
and Puerto Rico. The
$17 million facility will replace structures built in the 1930s and
will provide space for 20 on-site scientists and support staff, as well
as visiting scientists. The 69,500-square-foot laboratory and office
building is expected to open in about two years, then work will begin
on 43,100 square feet of greenhouses. At
a recent groundbreaking, Merle Shepard, resident director at Clemson's
Coastal Research and Education Center in Charleston, said, "The new
facilities will provide an atmosphere of synergy for us. Scientists
from both Clemson and USDA will all be together, which will allow for
a better exchange of ideas and information, as well as better planning
for programs and research projects. It will be much better than being
in separate buildings the way we are now." The
researchers include plant geneticists, physiologists, pathologists,
entomologists, nematologists and weed scientists who develop improved
varieties, environmentally sensitive pest management programs and more
effective post-harvest handling strategies for vegetable crops. "As
we look to what's facing us for health, nutrition, food and the environment,
we never want to give up our ability to conduct good science and good
research to answer important questions," said Jim Fischer, director
of the South Carolina Agriculture and Forestry Research System based
at Clemson. "The
Clemson center and the USDA laboratory are already internationally recognized
for distinguished research programs in vegetable crops," said Edward
Knipling, associate administrator for USDA Agricultural Research Service.
"The new facility will expand their capabilities for research on important
vegetable crops." The
USDA laboratory has developed more than 140 improved vegetable varieties
and breeding lines, and the Clemson center more than 40. They include
Charleston Gray and Congo watermelon, Planter's Jumbo cantaloupe, Goldcoast
snap bean, Homestead tomato, Wando pea, Charleston hot pepper and Ranger
squash. "The
South Carolina vegetable industry has the potential to expand to $220
million in annual income over the next decade, compared to current income
of around $70 million," said Senator Ernest F. Hollings who spearheaded
federal funding for the facility. "The potential is outstanding." END
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