Drought, Heat, and Flood Tolerant Varieties for the Midwest and South: Building on Success
Crop Genetics Research Unit
Project Number: 6066-21220-012-12
Start Date: Jan 01, 2014
End Date: Dec 31, 2016
The Stoneville objectives are: 1. Development of soybean lines with improved tolerance to both heat and drought and 2. develop drought tolerant soybeans using extreme phenotypes.
The chief production problem in soybean is August drought and heat. Yield contest winners in the USA report soybean yield as high as 80 bu/ac while state averages are usually one half that amount. The August stress problem is so severe, because none of our U.S. varieties is truly stress tolerant. The central purpose of our research is to change the ‘stress equation’ for farmers by developing stress tolerant varieties. This drought, heat, and flooding project coordinates the research activities of 8 institutions in the Midwest and South. The cooperators team is arguably the best in the world for attacking this difficult problem.
1. Identify soybean physiological pathways involved with improved water use efficiency and ability of plants to tolerate periods of drought stress.
2. Determine the genetic and metabolic factors involved in the ability of soybean to tolerate drought, flooding, and heat stresses.
3. Understand factors that control soybean root growth and their impact on drought and flooding tolerance.
4. Develop soybean germplasm with enhance ability to tolerate drought, flooding and heat stresses.