杂交稻F_1代种子在制种过程中,如隔离不严或去杂不净,就会在翌年的大面积生产上产生种子不纯或结实率过低的情况。因此,在大面积推广过程中,制种单位和引种单位都要为此而担心。今年3月,省、地、县农业部门要求对南繁制成的种子质量进行纯度鉴定和排除雄性不育的可能性,但未交代如何快速鉴定的手段,而播种在即,种与不种,一时难于决定。我们农科站根据水稻阶段发育的生理特性,即短光照能缩短生育期,加快世代繁育的理论,设计了一种快速鉴定法,采取暗室、塑料薄膜和加温等措施,在 F_1 generation of hybrid rice seeds in the seed production process, such as poorly isolated or miscellaneous impurities, it will in the following year’s large-scale production of seed impure or seed setting rate is too low. Therefore, in the process of large-scale promotion, seed production units and introduction units have to worry about this. In March this year, the provincial, prefectural and county agricultural departments demanded the purity identification of seed from the south and the possibility of excluding male sterility, but did not explain how to quickly identify the seeds, and sowing soon, species and species, It’s hard to decide Our agricultural station according to the physiological characteristics of the development of rice stage, that short light can shorten the growth period, to speed up generation breeding theory, designed a rapid identification method, to take darkroom, plastic film and heating measures such as