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Field evaluation of peanut genotypes for resistance to Sclerotinia blight

dc.contributor.authorAkem, C.N.
dc.contributor.authorMelouk, H.A.
dc.contributor.authorSmith, O.D.
dc.date.accessioned2019-12-04T11:31:13Z
dc.date.available2019-12-04T11:31:13Z
dc.date.issued1992
dc.identifier.citationAkem, C.N., Melouk, H.A. & Smith, O.D. (1992). Field evaluation of peanut genotypes for resistance to Sclerotinia blight. Crop Protection, 11(4), 345-348.
dc.identifier.urihttps://hdl.handle.net/20.500.12478/5469
dc.description.abstractNineteen peanut genotypes were evaluated for resistance to Sclerotinia blight caused by Sclerotinia minor in small field plots at Stillwater, Oklahoma, USA, in 1986, 1987 and 1988. Entries were arranged in a completely randomized block design in field plots with four replications. Average disease incidence (%) at harvest for the most resistant genotypes TX 804475, Toalson, TX 798731, TX 798683, and TX 798736 was 1.6, 3.9, 6.7, 9.1 and 11.6, respectively; the most susceptible genotypes, Florunner, Okrun and OK FH-15 had average disease incidence values of 93.4, 93.5 and 91, respectively. Incidence of S. minor was recorded throughout the growing season, and data were logistically transformed to determine disease progress. Average disease progress values (r) were 0.006, 0.002, 0.003, 0.004 and 0.006, for the resistant genotypes Toalson, TX 804475, TX 798731, TX 798683 and TX 798736, respectively; Florunner and its three hybrids (OK-FH 13, 15, and Okrun) had r values of 0.13, 0.12, 0.12 and 0.14, respectively. Other genotypes had varying degrees of resistance. Generally, genotypes with a bunch growth habit exhibited a lower incidence of Sclerotinia blight than those with a prostrate growth habit. These results were generally in agreement with greenhouse tests using a detached shoot technique to evaluate the genotype reaction to S. minor.
dc.language.isoen
dc.subjectPeanuts
dc.subjectGenotypes
dc.subjectSclerotinia
dc.subjectDisease Incidence
dc.titleField evaluation of peanut genotypes for resistance to Sclerotinia blight
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationTexas A&M University
cg.contributor.affiliationOklahoma State University
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Genetic Resources
cg.accessibilitystatusLimited Access
local.dspaceid103826
cg.identifier.doihttps://doi.org/10.1016/0261-2194(92)90061-9


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