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Registration of KS96WGRC37 Powdery Mildew‐Resistant Hard White Winter Wheat Germplasm
Author(s) -
BrownGuedira G. L.,
Cox T. S.,
Gill B. S.,
Sears R. G.,
Leath S.
Publication year - 1999
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1999.0011183x003900020068x
Subject(s) - germplasm , powdery mildew , biology , horticulture
KS96WGRC37 (Reg. no. GP-556, PI 604222) is a powdery mildew-resistant hard white winter wheat (Triticum aestivum L.) germplasm developed cooperatively by the USDA-ARS, the Kansas Agricultural Experiment Station, and the Wheat Genetics Resource Center. It was released as a germplasm in August 1996. KS96WGRC37 is an F3-derived line with the pedigree 'Arlin' *3/TA 895. Arlin is a hard white winter wheat cultivar, and TA 895 is a powdery mildew-resistant accession of Triticum timopheevii (Zhuk.) Zhuk. subsp. armeniacum (Jakubz.) van Slageren (syn. subsp. araraticum) from northern Iraq. Seedlings of KS96WGRC37 exhibited a low to intermediate infection type (<4 on a scale of 0 to 9) when inoculated with Isolate 8 ofErysiphe graminis DC. f. sp. tritici Em. Marchal [syn. Blumeria graminis (DC.) E.G. Speer f. sp. tritici], the causal agent of powdery mildew. Isolate 8 elicits a high infection type on the gene Pm6, which was transferred previously from T. timopheevii subsp. timopheevii. Detached leaves of Arlin and KS96WGRC37 were inoculated with 37 diverse isolates of E. graminis f. sp. tritici. Arlin had a low infection type (0) with one isolate, an intermediate infection type (4) with one isolate, and a high infection type (7-9) with the remaining 35 isolates. KS96WGRC37 had a low infection type (0-3) with nine, an intermediate infection type (4-6) with 25, and a high infection type (7-9) with three isolates (1). KS96WGRC37 was tested as experimental line U2659-2-9-M2. It is similar to Arlin in height, days to heading, kernel color, and overall phenotype. Small quantities (2 g) of seed of KS96WGRC37 are available upon written request. Appropriate recognition of source should be given when this germplasm contributes to research or development of a new breeding line or cultivar. Seed stocks are maintained by the Wheat Genetics Resource Center, Dep. of Plant Pathology, Throckmorton Plant Sciences Center, Kansas State University. Manhattan, KS 66506. Genetic material of this release will be deposited in the National Plant Germplasm System where it will be available for research purposes.