Project Number: 6208-21000-012-04
Project Type: Trust

Start Date: Jul 01, 2000
End Date: Jul 31, 2004

Objective:
We propose the use of rapid assays to evaluate relative high temperature tolerance, and the underlying genetic diversity, of production germplasm among peanut lines. We have developed 2 procedures to categorize existing diversity in the inherent & acquired thermotolerance levels of the peanuts commonly grown throughout Texas. This research will determine the level of genetic diversity that exists within production peanut lines for protection from temperature extremes.

Approach:
The research proposed in this study will provide a relative measure of heat stress resistance of peanut lines commonly grown throughout Texas. Peanut varieties will be analyzed for their relative heat stress tolerance with two procedures that we have developed. The first procedure evaluates the level of inducible heat stress tolerance in peanut seedlings. This procedure has been successfully used to identify genetic differences in heat tolerance in soybean, wheat, and sorghum. The second procedure screens for genetic diversity in the temperature sensitivity of photosystem II variable fluorescence.

Project Team

Burke, John

Project Annual Reports

FY 2003   FY 2002   FY 2001

Related National Programs

Plant Biological and Molecular Processes (302)