甘蓝型油菜双低pol CMS恢复系2350C的选育与应用

Breeding and Application of Restorer 2350C with pol CMS and Double-low in Brassica napus

为了给三系杂交油菜新品种的选育提供优良恢复系,以双低pol CMS恢复系5900C为母本、单低pol CMS恢复系Q16C为父本,采用去雄杂交和连续定向选择方法,于2009年成功转育成综合性状好、品质优、含油率较高的pol CMS恢复系2350C。该恢复系具有成熟期早、抗病能力强,较易配出强优组合的特点,其芥酸含量为(0.50±0.12)%,硫代葡萄糖甙含量为(33.23±2.34)μmol/g,含油率为(42.36±0.67)%,利用5900C恢复系组配的三系杂交油菜组合已先后进入国家和贵州省油菜区域试验。

Restorer 2350C with pol CMS,good comprehensive character,high quality and higher oil content was bred from the combination of restorer 5900C with pol CMS and double-low restorer Q16C with single-low and pol CMS by emasculation hybridization and subsequent orientation selection methods in 2009 to provide excellent restorers for three-line hybridization in Brassica napus L.The erucic acid, glucosinolate and oil contents of restorer 2350C with early maturity,strong resistance to diseases and higher combining ability are （0.50±0.12）%,（33.23±2.34）μmol/g and （42.36±0.67）% respectively. The three-line hybrid rape combinations with restorer 2350C were entered in National regional test and provincial regional tests successively,which indicates that restorer 2350C has good application prospect.