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

Author
item MADDEN, ROBIN - Oklahoma State University
item DILLWITH, JACK - Oklahoma State University
item MELOUK, HASSAN - Retired ARS Employee
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.