|MELOUK, HASSAN - Retired ARS Employee|
|DAMICONE, JOHN - Oklahoma State University|
|GODSEY, CHAD - Oklahoma State University|
Submitted to: American Peanut Research and Education Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 4/1/2014
Publication Date: 1/27/2015
Citation: Chamberlin, K.D., Bennett, R.S., Melouk, H.A., Damicone, J.P., Godsey, C.B. 2015. Release of OLe peanut [abstract]. In: Proceedings of the American Peanut Research and Education Society Proceedings, July 8-10, 2014, San Antonio, TX. 46:71-72.
Technical Abstract: OLe is a high oleic Spanish-type peanut that has excellent yield and enhanced Sclerotinia blight and pod rot resistance when compared to other high oleic Spanish cultivars. The purpose for releasing OLe is to provide peanut producers with a true Spanish peanut that is high oleic and has enhanced yield, grade, and disease resistance compared to other high oleic Spanish varieties. OLe (tested as ARSOK-S140-1OL) is the product of a Tamspan 90 X F435 (original donor of the high O/L gene). F1 seed were grown out in 2001, and F2 generation seed were space planted in 2002 in plots at the OAES Experiment station at Ft. Cobb, OK. Single plant selections were made from F3 plots to become individual F4 breeding lines. F4-5 breeding lines were evaluated for disease resistance and agronomic performance in 2006-2007. OLe was identified in 2007 as exceptional, due to its low incidence of Sclerotinia blight and high yield. Early bulk seed selection of OLe was made from healthy and Sclerotinia-free plants grown at Ft. Cobb, OK, in 2007. Seed increase of the selection as well as testing of agronomic performance was performed in 2008-2013 at several Oklahoma locations. Seed increases were also conducted at the Puerto Rico Winter Nursery. OLe was identified as exceptional due to its potential for low incidence of Sclerotinia blight and pod rot and excellent yield compared to available high oleic Spanish cultivars. In agronomic performance tests conducted from 2007-2013 in Oklahoma, OLe averaged 48% less incidence of Sclerotinia blight and 75% less pod rot than other Spanish cultivars tested. OLe averages a yield of 500 – 1000 lbs more per acre and a crop value of $83 – $175 more per acre than other Spanish cultivars. OLe is high oleic (O/L = 20:1) and has a nutritional and flavor profile similar to that of other Spanish cultivars. OLe is a true Spanish peanut cultivar with an erect growth habit. OLe seed typically matures at 120 days after planting under Oklahoma growing conditions. Seed size of OLe is typical of Spanish cultivars with seed weight/100 averaging 47.6 g. OLe seed typically grade similar to other Spanish cultivars but have averaged 1-3 points higher depending upon location and year. The release of OLe peanut will offer producers in the US Southern Plains a true Spanish peanut with an exceptional disease resistance and yield package. The production of OLe will increase their profit margin by an average of $130 per acre, potentially increasing the economy by $7M annually.