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ARS Home » Research » Publications at this Location » Publication #111314

Title: A SCLEROTINIA RESISTANT RUNNER PEANUT VARIETY, TAMRUN 98

Author
item SMITH, OLIN - TEXAS A&M UNIVERSITY
item SIMPSON, CHARLES - TEXAS A&M UNIVERSITY
item Melouk, Hassan

Submitted to: American Peanut Research and Education Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 7/13/1999
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Genes for Sclerotinia blight resistance (Sclerotinia minor Jagger) were transferred from the Spanish germplasm TxAG-6 which was also the source of resistance for the cultivar 'Tampspan 90'. The original cross was made in College Station in 1988 between TxAG-6 and TP107-11, a sister line of the early maturing runner variety Langley. The F2 hybrid was backcrossed to TP107-11 in 1989, and BC1F2:3 selections were made in the sclerotinia nursery at Stephenville in 1991. In yield tests, Tamrun 98 has out-yielded commercial variety checks by more than 50% in soil heavily infested with sclerotinia. The seed size is equal to or larger than Florunner in most all tests, but not quite as large as Tamrun 96. Yield differences between Tamrun 98 and Tamrun 96 have not been as great as with Tamrun 98 and Florunner. Shelling tests on Tamrun 98 indicate that the variety will shell easily, yielding a very low percentage of splits, even when low moisture content exists. Flavor, O/L ratio, and other attributes of the edible market have been acceptable in all tests conducted to date.