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甘蓝型油菜雄性不育三系杂交种秦油2号的育成与应用把油菜杂种优势利用研究推向了一个新阶段。但由于目前已经或即将应用于生产的三系杂交油菜其配组的不育系多属低温敏感型不育系,在长江中下游地区及江淮之间秋播制种条件下,春季受低温影响,不育系易出现微粉,制种杂交率不理想,影响种子质量。为此,我们自1997年春季在青海省乐都县园艺场(东经102°23′,北纬36°26′,海拔2000m左右)连续进行了三年三系杂交油菜皖油九号制种试验,三年平均制种产量为1897.5kg/hm~2,制种杂交率经我所秋播鉴定在95％～98％之
Breeding and application of Qinyou No.2, a male sterile three-line hybrid rapeseed (Brassica napus L.), rapeseed heterosis utilization research to a new stage. However, due to the three-line hybrid rape currently or soon to be applied in production, most of the CMS lines are genotypes with low temperature-sensitive genotypes. Under the conditions of autumn planting in the middle and lower reaches of the Yangtze River and JAC, , Sterile lines prone to micro-powder, hybrid seed yield is not ideal, affecting the quality of the seeds. To this end, we conducted a three-year rape experiment on three-line hybrid rape cultivars Wanyou No.9 in the horticultural field of Ledu County, Qinghai Province (longitude 102 ° 23 ’east longitude, latitude 36 ° 26’ north latitude and 2000m above sea level) The average seed production in three years was 1897.5kg / hm ~ 2. The hybridization rate of hybrid seeds was 95% ~ 98%