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以甘蓝型油菜隐性核不育系117A单株(组合)原原种为材料研究原种繁殖技术结果表明:由于分析和鉴定力而的误差原繁殖的单株(组合)原原种仍有极少数株系的性状不理想,通过分系繁殖可在繁殖过程中及时地淘汰,并能保住使用于大面积制种的亲本原种的绝对安全;育性标记以在盛花期左右不育株主序抹红漆的效果最好,其工效可达1000~2000株/人·h,收割失误率仅为0.7%;隔离条件以自然屏障隔离较好,其开交率在0.17%以下,其次为空间隔离,距离在1000m以上的异交率在0.16%以下,再次是以时间隔离最理想的威宁夏繁,其异交率几平为零;在播期为9月10~15日,苗栽密度3000~5000株,亩施油枯100~150kg、普钙25kg作基肥,尿素20~25ks的栽培水平下,其繁殖系数可达1300以上,育性标记市用工仅为lh左右.
The results of the breeding experiment on the original species of the 117A single plant (combination) of the recessive male sterile line Rapeseed (Brassica napus L.) showed that the original (single) The traits of very few lines are not ideal. Through the branch breeding, they can be eliminated in time and can keep the absolute safety of the parental lines used for large-scale seed production. The best result is red precoating, with a work efficiency of 1000-2000 plants / person · h and a harvesting failure rate of only 0.7%. Isolation conditions are well separated by a natural barrier with a yield of 0.17% or less, followed by space Isolation, distance of more than 1000m in the outcrossing rate of 0.16% or less, once again the best time to isolate the Weining Xia Fan, the outcrossing rate of several flat zero; sowing September 10 to 15 days, seedling planting density 3000 to 5000 strains, 100 to 150 kg dry mush oil, 25 kg calcium phosphate as basal fertilizer, 20 to 25ks urea cultivation level, the reproductive coefficient up to 1300 or more fertility markers only about lh labor market.