| Universtiy of Georgia Turfgrass Program |
The Turfgrass Program in the College
of Agriculture and Environmental Sciences is an interdisciplinary effort
of 17 scientists working together in extension, research and teaching.
The faculty address the needs of all segments of the industry mainly through
the departments of Crop and Soil Sciences, Plant Pathology, and Entomology
located at three campuses; Athens (College Station), Griffin (CAES - Griffin
Campus), and Tifton (Coastal Plain Experiment Station). The teaching program
is located in Athens while the research program is centered in Griffin,
but conducted at all three locations as is the extension program.
Since Environmental Quality is directly
related to turfgrass management, all activities have environmental stewardship
implications. Some of the more specific activities include breeding for
stress resistance, evaluating new practices regarding turfgrass cultural
management, water management/conservation, pesticide/nutrient fate, and
pesticide exposure.
The Turfgrass Breeding and genetics
program is conducted in Tifton and Griffin. The Tifton program is responsible
for the development of most hybrid bermudagrasses used for turf throughout
the world. Led by the cultivar, Tifway, all "Tif"-named cultivars
were developed here. Since 1983, the Tifton program has been actively
developing new seeded and vegetatively propagated bermudagrass and centipedegrass
cultivars with pest resistance and drought and low temperature tolerance.
The newest releases include TifSport
and TifEagle bermudagrasses and
TifBlair centipedegrass.
In 1989, the breeding program at the CAES - Griffin
Campus was initiated. This program has focused on screening turfgrasses
for tolerance to the inherent environmental stresses of high soil acidity,
high soil bulk density, and periodic heat and drought stresses in the
Southeast. Most cultivars/selections representing the turfgrass species
grown throughout the world have been screened. In 1992, the only breeding
program in the world involving improved seashore
paspalum (Paspalum vaginatum) for turf was initiated. This species
has high salt and drought tolerance, low fertility requirements, and withstands
water logging and non potable water. In 1999, the first two releases were
made: Sea
Isle 2000 (golf greens type) and Sea
Isle 1 (fairway, tee, athletic field type). Also, in 1999 the first
Georgia adapted tall
fescue cultivar (Southeast) was released with availability of seed
in 2001. This cultivar has exceptional drought resistance and persistence,
while exhibiting very good shoot density and color.
The Cultural Management and Environmental/Traffic
Stress program is focused on developing efficient programs that
have minimal inputs and are environmentally sound. Some examples include
documenting turfgrass water requirements
in Georgia, developing and evaluating different irrigation scheduling
technologies, evaluating traffic tolerance and cultivation programs, establishing
new paspalum, centipedegrass, and tall fescue management programs.
In the area of Herbicides and Plant Growth Regulators,
protocols for the judicious use of new herbicides are continuously being
established for both fine turf and roadside grasses. Recently emphasis
has been placed on determining the tolerance of newly-installed sod to
herbicdes, use of growth regulators in seashore paspalum, effect of applying
herbicides at the time of seeding centipedegrass, Poa annua control in
overseeded bermudagrass, and efficacy of herbicids as a spring transition
aid in overseeded bermudagrass. Turfgrass
Weed Management
The Disease and Insect management programs
are involved in documenting economic pest thresholds with Integrated
Pest Management programs, including biological control methods. These
programs also study the basic biology of the respective organisms, and
are attempting to improve genetic resistance to various pests. Landscape
Pest Management
The Pesticide and Nutrient Fate assessment
program has been in place since 1993, but has new personnel leading the
program today. Three commonly used herbicides on the most leachable soil
types (golf course greens) show no detectable chemicals exceeding Federal
drinking water standards because of the tremendous absorptive and degradative
capacity of a turfgrass environment. Herbicide and fertilizer runoff with
high rainfall events are currently under study. A new nutrient fate program
was begun in 1998 to evaluate nitrogen and phosphorus leaching and runoff
from golf course greens and fairways.
The Teaching program has shown rapid
growth over the past few years. Recently, the Board of Regents approved
a new undergraduate turfgrass major. This major is unique because
it is administered by both the Department of Horticulture and Crop
and Soil Sciences. This shared responsibility affords the student
greater access to faculty and teaching resources. The turfgrass
program currently consists of six turf courses. In addition to two
basic management courses, the program offers courses in turf diseases,
weed and insect management in turf, turf and landscape irrigation,
and environmental stresses of turfgrasses. Discover
Turfgrass Managment
The mission of the Cooperative Extension Service
is to disseminate useful and practical information to the University's
clientele. The primary means of delivery of this information is through
the local Cooperative Extension Service office in every county in the
state. This is done by an interdisciplinary team of seven scientists through
various activities like writing the 30 publications listed elsewhere in
this report. In an average year, this team writes 15 articles for national
or regional industry publications and 25 articles for instate publications.
They also speak at 88 meetings, drive more than 75,000 miles, and are
involved in 35 field research demonstrations.
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