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United States Department of Agriculture

Agricultural Research Service

Research Project: Development of Improved Peanut Cultivars and Germplasm for the Southwest Peanut Region of the United States

Location: Wheat, Peanut, and Other Field Crops Research

Title: A preliminary report on the effect of digging date on fatty acid composition of Red River Runner peanut cultivar

item Madden, Robin
item Dillwith, Jack
item Melouk, Hassan
item Chamberlin, Kelly

Submitted to: Peanut Research at Oklahoma State University
Publication Type: Experiment Station
Publication Acceptance Date: 1/31/2014
Publication Date: 3/1/2014
Citation: Madden, R.D., Dillwith, J.W., Melouk, H.A., Chamberlin, K.D. 2014. A preliminary report on the effect of digging date on fatty acid composition of Red River Runner peanut cultivar. In: Partners in Progress – Peanut Research at Oklahoma State University, 2013. Oklahoma Agricultural Experiment Station. P-1042. p. 17-20.

Interpretive Summary:

Technical Abstract: Peanut marketability in the southwestern United States is driven by the availability of cultivars possessing high oleic content, high yield, and superior grade. For the traditional low O/L peanuts, the O/L ratio increases as the developmental stage increases. No previous reports have appeared on the effects of maturity on the O/L ratios of high O/L ratio lines. Therefore, a preliminary test in 2011 was conducted to determine the effect of crop maturity on the O/L ratio of the high oleic cultivar Red River Runner. In our study we found that the ratio of O/L of the 19/64 kernel size did not change regardless of the digging date and that there was a clear relationship between seed size and O/L ratio, as the seed size increases the O/L ratio increases. At full maturity at 148 days after planting, the 19/64 kernels of Red River Runner peanut weighed over 54% of the total kernel weight. More research is needed to determine the effects of digging date, seed size, and seed maturity on the fatty acid composition of high O/L ratio peanut cultivars.

Last Modified: 10/16/2017
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