甘蓝型双低隐性核不育杂交种沪油杂4号的选育

Breeding of the Brassica napus cultivar Huyouza 4,a recessive genic male sterile(GMS)hybrid with double low content in rapeseed

沪油杂4号是利用隐性上位互作核不育育成的甘蓝型双低油菜三系杂交种,具有高产、稳产、抗油菜菌核病和病毒病的特性。上海市油菜区域试验的平均产量为2 674.5 kg/hm2,比双低对照沪油15增产6.0%,国家冬油菜长江下游区域试验的平均产量为2 590.4 kg/hm2,比对照秦油7号增产5.54%。国家冬油菜长江下游生产试验的平均产量2 520.0 kg/hm2,比对照秦油7号增产8.75%。该品种种子含油率44.63%,芥酸含量为0,硫苷总量29.61μmol/g。

The B. napus cultivar Huyouza 4 is a three way hybrid with double low content in rapeseed bred by using recessive epistatic interactive genic male sterility and has such characteristics as high and stable yield and resistence to sclerotiniose and virosis. Its average seed yield was 2 674. 5 kg/hm^2 in Shanghai rapeseed regional test,2 590.4 kg/hm^2 in the national rapeseed regional test of the lower reaches of the Yangtze River, and 2 520.0 kg/hm^2 in the national rapeseed production test of the lower reaches of the Yangtze River,increasing by 6.0% ,5.54% and 8.75% over check varieties Huyou 15, Qinyou 7 and Qinyou 7,respectively. Its oil content is 44.63% in seed,erucic acid content is 0 in oil, and glucosinolate content is 29.61 μmol/g in meal.