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Registration of KS3579 Winter Rapeseed Germplasm
Author(s) -
Rife C. L.,
Auld D. L.,
Stegmeier W. D.,
Sunderman H. D.,
Heer W. F.,
Salgado J. P.,
Baltensperger D. D.,
Johnson D. L.,
Minor H. C.
Publication year - 1997
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/cropsci1997.0011183x003700040085x
Subject(s) - germplasm , rapeseed , crop , humanities , biology , forestry , horticulture , geography , agronomy , art
KS3579 winter rapeseed [Brassica napus L. subsp. oleifera (Metzg.) Sinsk. f. biennis] (Reg. no. GP-5, PI 594321) was developed by the Kansas Agricultural Experiment Station and has improved winter survival compared with other rapeseed tested under Great Plains conditions. KS3579 was selected in the Fg generation from the cross WRER12/'Jet Neuf. This cross was made in 1988 by personnel of the Idaho Agricultural Experiment Station at Moscow, ID. An ¥3 bulk population was received by the Kansas Agricultural Experiment Station at Hays, KS, in 1990. Single plant selections were advanced, open pollinated, in the vicinity of sister lines for three years at Hays and Manhattan, KS. WRER12 is one of four parents of the synthetic cultivar Cascade (1). Seed of WRER12 is low in erucic acid and in glucosinolates (<20 g kg" erucic acid in the oil and <30 (xmol g" glucosinolates in the oil-free meal) and was selected in the Fe generation from the cross 'Indore'/'SipalV/'Liraglu'. Jet Neuf is low in erucic acid and high in glucosinolate. It was used as a parent because of its tolerance to blackleg [caused by Leptosphaeria maculans (Desmaz.) Ces. & De Not.]. Seed of KS3579 has oil with low erucic acid (<20 g kg") and meal with high glucosinolate (>200 nmol g~') content. During the growing season of 1993-1994, KS3579 averaged 88% winter survival, compared with 30% for 'Ceres' winter rapeseed. During 1994-1995, KS3579 averaged 90% winter survival, compared with 81% for Ceres, at the 8 locations where differential winterkill was observed (Parsons, Manhattan, Garden City, and Colby, KS; Carbondale and Belleville, IL; Lincoln, NE; and Ft. Collins, CO). At 1 location in 1994-1995 (Ft. Collins, CO.), KS3579 was the only line that survived with a harvestable stand (76% winter survival). At 9 locations where differential winterkill was observed in 1995-1996 (Parsons, Manhattan, Hutchinson, Garden City, and Colby, KS; Columbia, MO; Kibler, AR; Sidney, NE; and Archer, WY), KS3579 averaged 62% winter survival, compared with 33% for Ceres. In tests throughout the Great Plains when winter kill occurred, KS3579 was either the best surviving line or not significantly different from the best surviving line. Over three years of testing, KS3579 has had the highest survival percentage each year when averaged over all locations. In 1994 and 1995, KS3579 always survived with harvestable stands even though, in 3 of 15 locations, more than one-half of the test entries were lost to winterkill. The entire test, including KS3579, was lost to winterkill at 3 of 19 locations in 1996. In 1995, KS3579 averaged 107 cm tall (10 cm shorter than Ceres) and 6 d earlier to 50% bloom date than Ceres, had 333 g kg" total oil (10 g kg" less than Ceres), and yielded 1417 kg ha" (85% of Ceres). KS3579 has not been evaluated for resistance to either white mold [caused by Sclerotinia sclerotiorum (Lib.) de Bary] or virulent blackleg. Breeder seed of KS3579 will be maintained and distributed by the Kansas Agricultural Experiment Station. Small amounts of seed will be provided upon written request. Recipients are asked to make appropriate recognition of the source of the germplasm if used in development of a parental line, cultivar, or hybrid.