Developing New Farming Techniques NPRL agronomist Wilson Faircloth and plant stress physiologist Diane Rowland (formerly with NPRL and now with Texas AgriLife Research) conducted field trials for 5 years in west Texas to determine the effects of deficit irrigation and, more recently, conservation tillage on peanut performance. The combination of conservation tillage and deficit irrigation promotes conservation of water during the early season, and if implemented over a large geographic area such as the Southern High Plains, it has potential to significantly affect late-season water issues by reducing the amount of water needed for peanut irrigation.
Preparings t e for the Future S y Peanuts m a t i c s & C o l l e c t i o n s New Cultivars and Farming Strategies P important crop, eanuts are an import Field screening of the “Identifying drought re- contributing more than $4 billion accessions was performed sponses in the mini-core to the country’s econ economy each by New Mexico State collection can help us de- growt year. But rapid growth in cities University scientist termine potential genetic leve along with water level declines Naveen Puppala and a components involved in n S in aquifers throughout the South have team of Texas AgriLife abiotic stress tolerance,” far resulted in fewer acres for farming and Research and Texas says Payton. “Our study ess less water available for irrigatio To meet irrigation. Tech University sci- identifies potential targets future food-supply demands, crop produc- entists led by Mark Burow. for breeding and genetic tion will have to increase, but it must do Photosynthetic measurements PAXTON PAYTON (D1559-1) engineering of abiotic stress so under the constraints of less water and, of the field-grown plants by Payton tolerance in peanut crop plants.” most likely, less farm land. and Kottapalli helped narrow down the Perhaps most importantly, the pheno- Agricultural Research Service scientists group to two accessions that are highly types Payton and Kottapalli identified in with the Plant Stress and Germplasm tolerant to heat and drought and two that the screening process were confirmed by Development Research Unit in Lubbock, are highly susceptible. field trials under stress-inducing condi- Texas, and the National Peanut Research This follows previous work by the tions. Puppala and Burow are using the Laboratory (NPRL) in Dawson, Georgia, AgriLife and Texas Tech scientists results of this and other screening are working with cooperators to help pea- and ARS scientists John Burke experiments to make crosses nut farmers maintain and improve their and Gloria Burow, who to improve abiotic stress production in a changing environment. demonstrated heat and tolerance in peanut. drought tolerance in a Payton and the re- Managing Abiotic Stresses smaller set of peanut searchers are also test- At the Lubbock laboratory, plant physi- germplasm. They are ing peanut’s response to ologist Paxton Payton and postdoctoral now examining the in-
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