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US (DE): University program to develop heat-tolerant lima bean varieties

Emmalea Ernest, extension agent in the University of Delaware’s Department of Plant and Soil Sciences (PLSC), has received federal funding from the U.S. Department of Agriculture’s Speciality Crop Block Grant (SCBG) Program for a project aimed at developing heat-tolerant lima bean varieties.

“Lima beans are Delaware’s largest acreage vegetable crop and anchor the state’s processing vegetable industry,” said Ernest. “The varieties that are currently available to growers suffer yield loss or delayed yield when they are exposed to high temperatures during flowering.”

With her funding, Ernest aims to develop procedures for heat tolerance screening in the existing lima bean breeding program, examine the physiological mechanisms for heat stress tolerance or susceptibility in lima beans, and investigate the underlying genetic basis for heat stress tolerance in lima beans. Her findings could greatly impact Delaware vegetable farmers’ yields.

Her research with lima beans will be over the course of the next three years and take place on UD’s research farm in Georgetown.

Ernest said that in the genetics portion of the project, which will be built off of work funded by the Building a Better Bean SCRI Grant awarded to UD researchers last year, she will be working closely with colleague Randy Wisser, assistant professor of plant and soil sciences, and Gordon Johnson, extension vegetable and fruit specialist.

Source: udel.edu

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