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对甘蓝型生态雄性核不育两系油菜在长沙地区的春播制种中采用露地直播、覆膜直播和育苗移栽 3种栽培方法进行比较 ,结果表明 ,覆膜直播法处理的产量最高 ,露地直播法处理的产量最低。在种植密度为 0 .8～2 .4万苗 / 667m2的范围内 ,直播方法的制种产量随密度的增加而增加 ,而育苗移栽处理当密度达到 2 .4万苗 /667m2时产量反而下降 ,说明直播方法密植的增产潜力较大
The results showed that the yield of the two genotypes male sterile genic male sterile two-line rapeseed in direct seeding in Changsha was compared with direct seeding, direct seeding and seedling transplanting. The results showed that, The live broadcast method to deal with the lowest yield. In the range of planting density of 0.8-2.400 seedlings / 667m2, the seed yield of direct seeding method increased with the increase of density, but the seedling transplanting treatment when the density reached 24,000 seedlings / 667m2, the yield instead Decline, indicating that the close-planting method of planting yield potential greater