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Title: Oleic/Linoleic (O/L) acid ratios of Red River Runner peanut at three digging dates

Author
item MELOUK, HASSAN - Retired ARS Employee
item MADDEN, ROBIN - Oklahoma State University
item DILLWITH, JACK - Oklahoma State University
item GODSEY, CHAD - Oklahoma State University
item Chamberlin, Kelly

Submitted to: American Peanut Research and Education Society Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 7/10/2012
Publication Date: 1/1/2013
Citation: Melouk, H.A., Madden, R.D., Dillwith, J.W., Godsey, C.B., Chamberlin, K.D. 2013. Oleic/Linoleic (O/L) acid ratios of Red River Runner peanut at three digging dates [abstract]. In: Proceedings of the American Peanut Research and Education Society Proceedings, July 10-12, 2012, Raleigh, NC. 44:23.

Interpretive Summary:

Technical Abstract: Peanut plots were established at Stillwater, OK in 2011. Each plot consisted of 4 rows each being 6.1 m in length and row spacing of 0.91 m. Plots were arranged in a randomized complete block design with five replications. Plots received a total of 69 cm of water (natural and sprinkler) during the growing season. Standard agronomic practices were performed during the growing season. Digging dates were: 120, 133, and 148 days after planting. Standard digging and curing practices were followed. Kernels from each treatment were graded and sized into 4 categories: <15/64, 15/64, 16/64, and 19/64. Three random kernels were taken from each sample and used to determine O/L ratios using a standard GC methodology. At all digging dates, the O/L ratios increase as the kernel size increased. Average over all digging dates, O/L ratios of 5.7, 7.9, 15.7, and 24.5 were obtained for kernel size corresponding to <15/64, 15/64, 16/64, and 19/64, respectively. These findings clearly indicate that mature Red River Runner peanut kernels possess higher O/L ratios than the less mature ones.