摘要
为了探明三北98杂交油菜品种高产制种技术中育苗移栽母本的最佳密度,为大面积种子生产提供参考,研究了三北98杂交油菜母本不同栽培密度对其制种产量及产量构成因素的影响。结果表明:三北98制种中,父母本行比为1∶6,母本密度为4 000～10 000株/667m2时,其制种产量与母本密度呈一元二次抛物线y=25.342 9+1.862 8×10-2 x-1.360 7×10-6 x2,通过求极值获得最高产量的密度为6 845株/667m2,其构成产量的单位面积实收株数为2 900～3 800株/667m2,单株有效角果为450～650角/株,角粒数14～17粒/角,千粒重3.9g。
The female parent plants of Sanbei 98,a hybrid rape variety,were cultivated under different planting density to study the effects on seed yield and yield component and to verity the optimum planting density of the female parent in seed production of Sanbei 98.The results showed that the relationship between the seed yield and planting density of the female parent was y= 25.3429＋1.8628×10-2x-1.3607×10-6x2 when the ratio between parental lines was 1∶6 and the planting density of the female parent was 4 000~10 000 plants/667 m2.When the planting density of the female parent was 6 000~8 000 plants/667 m2,the actual planting density was 6 845 plants/667 m2 and the effective pods/plant,seeds/pod and 1000-seed weight could be 450~650,14~17 and 3.9 g respectively.
出处
《贵州农业科学》
CAS
北大核心
2013年第3期1-3,共3页
Guizhou Agricultural Sciences
基金
贵州省农业公关项目"高油分杂交油菜新品种三北98制种技术集成创新及大面积示范推广"[黔科合NZ字(2010)3087]
关键词
三北98
杂交油菜
隐性核不育
两系制种
母本密度
Sanbei 98
hybrid rape
recessive nucleic male sterility
two-line seed production
female parent density
