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Research Project:
PHYSIOLOGICAL AND GENETIC BASIS OF COTTON ACCLIMATION TO ABIOTIC AND BIOTIC STRESS
Location:
WCRL
Cotton Physiology/Genetics & Host Plant Resistance Research Unit
Project Number: 5344-21000-008-00
Project Type:
Appropriated
Start Date: Apr 25, 2001
End Date: Apr 24, 2006
Objective:
Determine mechanistic basis for the interactive effects of temperature, CO2, and plant nutrition on photosynthesis and carbon partitioning. Develop germplasm with improved yield, fiber quality and tolerance to environmental stress. Determine interactions between plant nutrients and environmental conditions on the carbon and nitrogen metabolism of the silverleaf whitefly and other insect pests. Determine the impact of symbiotic and non-symbiotic organisms on interactions between insects and host plants.
Approach:
Cotton production is compromised by encounters with abiotic and biotic stresses. These stresses include temperature extremes, water supply and nutrient management, as well as insects. The mission of this Research Unit is to use a multidisciplinary approach to improve stress tolerance and yield of cotton. Fundamental approaches will be used to identify physiological mechanisms that regulate the response of photosynthesis to temperature extremes, as well as the interactions between temperature, atmospheric CO2 concentration and plant nutrition. Stress tolerance and yield components of Pima cotton will be investigated using both classical and molecular-oriented approaches. Interactions between cotton and insect pests will be determined by identifying the mechanistic basis of the interactions. This research will provide new cotton germplasm and fundamental knowledge for use in devising new strategies for improving the stress tolerance of cotton and other crop plants. BSL-1, App #P-3-98-1 3/4/98; Recert. 8/7/00. Replaces 5344-21220-013-00D
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