Breeding of double-low rapeseed variety [Brassica napus L.] Yuyou 2.
1991
Song Wenguang | Zhang Shufen | Wen Yancheng
Yuyou 2 is a double-low rapeseed variety (Brassica napus L.) derived from the progenies of (7818 cross Marnoo) f2 cross QVa through a pedigree selection method. It is characterized by high yield, fine quality and resistance to mosaic and sclerotiose. Primarily, it is a concreated combination of high yield, fine quality and disease resistance. In the three-year regional test, productive demonstration in Henan Province and two-year national regional test in Huanghuai region, its yield increased by 15.6%, 3.78%, 23.6% compared with double-low cultivar Yuyou 1, Nanyang 41 with high erucic acid and high glucosinolates and single-low cultivar Qinyou 3 respectively. Its erucic content is 0.244%, glucosinolates content is 16.5 umol/g [one minllionth mol/g] and oil content is 39.48%, which quality reached the international standard of fine quality rapeseed.
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