甘蓝型三系杂交油菜秋播制种技术研究 Ⅰ.母本适宜播期的研究

• 作 者: 侯国佐 高维洁 何惠萍 侯燕
• 机 构: 贵州省油料科学研究所
• 出 处: 贵州农业科学
• 发表日期: 1997年03期
• 关键词: 制种技术研究 三系杂交 秋播制种 胞质不育 适宜播期 不育材料 不育株率 制种产量 制种质量 父母本行比

为解决胞质不育材料在低温下产生微粉对制种质量的影响，采取父本于９月中旬育苗并在父本行每６６７ｍ２植２０００余株，母本于晚秋１１月上、中旬直播，且每６６７ｍ２留苗１５０００株左右。结果，花期父本植株高大、花势强，母本微粉发生较少。其杂种种子不育株率为９．５％～１６％，比母本正常秋播杂种种子的不育株率３２．４％～３７．９％低１６．４％～２８．４％，制种产量可达７９９．５～１２４０．５ｋｇ／ｈｍ２。

In order to solve the effect of the micro-powder produced by cytoplasm sterile material on seed quality at low temperature, the male parent grew seedlings in mid-September and planted more than 2,000 plants per 667m2 in his father’s plant. And every 667m2 Liao Miao 15000 or so. The results showed that the male parent plants in flowering stage were tall, flower vigor was strong, and female parent powder occurred less. The rate of sterile seed of hybrid seeds was 9.5% ~ 16%, which was 16.4% -28.4% lower than the rate of sterile plants of normal autumn hybrid seeds from 32.4% ~ 37.9% Seed production up to 799.5 ~ 1240.5kg / hm2.