早熟丰产白菜型冬油菜新品系964-1-1选育报告

Breeding of A New Early-mature and High-yield Winter Rape Line 964-1-1(B.campestris L.)

冬油菜新品系964-1-1是天水市农科所以白菜型冬油菜品种天油1号作母本,加拿大甘蓝型春油菜品种p ivot作父本杂交选育而成。在2001-2003年的区域试验中,2 a 10点次折合产量2 118 kg/hm2,较对照品种天油1号增产12.1%。该品系株高110.6 cm,千粒重2.57 g,角粒数24.6粒,生育期273 d,越冬率94.2%。适宜在陇东、陇南及定西等海拔2 000 m以下地区推广种植。

964-1-1 ,a new winter rape line was bred by Tianyou 1 （B. campestris L. ） as female parent,Canada rape variety pivot（Brassica napus L. ）as male parent by Tianshui Institute of Agricultural Sciences. In the regional test from 2001 to 2003,the average yield was 2 118 kg/hm^2,which was 12.1% higher than that of the check Tianyou 1. Its plant height was 110. 6 cm, the 1 000 seeds weight was 2.57 g, the number of seeds per silique was 24.6, the whole growth period was 273 d and winter survival rate was 94.20/40. It suited to be planted in the regions of Eastern Gansu, Southern Gansu, and Dingxi et al. below 2 000 m above sea level.