BREEDING FOR EARLY-MATURING PEANUT

Authors: BURROW, M - TEXAS AG EXP STATION; LOPEZ, Y - TEXAS AG EXP STATION; AYERS, J - TEXAS AG EXP STATION; SIMPSON, C - TEXAS AG EXP STATION; SCHUBERT, A - TEXAS AG EXP STATION; BARING, M - TEXAS A&M UNIVERSITY; DASHIELL, K - OKLAHOMA STATE UNIV; BLACK, M - TAMU TEXAS COOP EXT; Melouk, Hassan

Submitted to: American Peanut Research and Education Society Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 7/1/2004
Publication Date: 12/1/2004
Citation: Burrow, M.D., Lopez, Y., Ayers, J., Simpson, C.E., Schubert, A.M., Baring, M.R., Dashiell, K., Black, M.C., Melouk, H.A. 2004. Breeding for early-maturing peanut [abstract]. In: Proceedings of the American Peanut Research and Education Society, San Antonio, TX, July 13-16, 2004. 36:33.

Interpretive Summary:

Technical Abstract: The quality of peanut grown in West Texas is affected by a shorter growing season, longer time to maturity, and reduced oleic to linoleic ratios (O/L). We have begun development of material to combine earlier maturity, high O/L, and acceptable sucrose content. F2:6 runner and Spanish peanuts were grown at 5 locations in Texas and Oklahoma and evaluated for yield, shelling, seed weight, and maturity at selected locations. As in 2002, one runner line (Tx017746) had high yield, acceptable seed size, and an intermediate maturity at multiple locations. Several other lines combined early maturity and high yield but these were not as stable across locations. Selections did not have demonstrable resistance Sclerotinia blight or tolerance to Tomato Spotted Wilt Virus. The selections are low O/L and the best accessions are being crossed with high O/L disease resistant runner lines. For the F2:5 generation, separate populations of runner and bunch peanuts were evaluated at 3 locations in 2003. Several lines possessing early maturity were identified. Lines will be analyzed for O/L ratio – one parent of each cross had a high O/L ratio.