Registration of ‘Schubert’ Peanut

Abstract

’Schubert’ (Reg. No. CV-121, PI 669508) is a high-yielding, high-oleic, early-maturing spanish-type peanut (Arachis hypogaea L. subsp. fastigiata var. vulgaris) cultivar with improved shellout. Schubert was tested under the experimental designation TxL054520-34. Replicated yield tests began in the F8 generation in 2007 and ran through 2010. Schubert matures approximately 1 to 2 wk earlier than ‘OLin’ and has significantly higher yield and grade than OLin. Yield averaged 526 kg ha−1 higher than for OLin, and total sound mature kernels grade was 2.2% points higher. Seed size was significantly larger than for the checks, 51.8 g 100 sound mature kernels−1 (SMK), compared with 50.2 and 48.1 g 100 SMK−1 for OLin and Tamspan 90, respectively. Schubert produces a higher proportion of medium seed than does either check cultivar, as well as a smaller proportion of split seeds. Resistance to Sclerotinia minor Jagger was not different for Schubert compared with Tamspan 90. The objectives of releasing this line are to provide growers with a higher-yielding, high-oleic cultivar for the spanish market, along with earlier maturity.