细胞分裂素及稀土微肥在杂交水稻制种上的应用效果研究  

Studies on Effects of Cytokinin and Fertilizer of Trace Elements on Hybrid Rice Seed Production

作　　者：李国顺 李志勇 董奎新 徐振平[2] 王景晨[3] 胡廷积[4] 

机构地区：[1]信阳市种子公司,河南信阳464000 [2]新乡医学院细胞生物研究室,河南新乡453003 [3]信阳农业高等专科学校,信阳464000 [4]河南农业大学,郑州450002

出　　处：《种子》1999年第4期24-26,共3页Seed

摘　　要：本文对杂文中稻岗优22制种田亲本（父本CDR22／母本岗46A）始穗期喷施“细胞分裂素”、“稀土微肥”及“细胞分裂素”＋“稀土微肥”混合液对母本穗部性状及产量等的影响进行了研究，研究结果表明：三者均明显提高母本颖花的开花数量、异交结实率、千粒重及产量，降低败育率，并优化影响结实的有关性状。“细胞分裂素”＋“稀土微肥”混合液效果最为明显，但三者对异交率影响不大。Effects of cytokinin, fertilizer of trace elements and mixture of them, which were sprayed respectively on parents (CDR22 (fa-ther)/Gang 46A (mother) of midle hybrid rice Gangyou 22 in initial heading stage in the hyhrid rice seed producing field, on ear performances of the mother plants, yields and others were studied in 1997 and 1998. The expermintal results showed that the moth-er plants treated were characterized by the higher number of flowering glumes, greater seed setting rate and thousand seed weight,lower rate of seed abortion and some improved characters connecting seed setting with the effects of the mixture the clearest. But,the effect of the three treatments on rate of mother-plant cross-fertilization was indistinct.

关 键 词：杂交水稻 细胞分裂素 稀土微肥 制种 水稻 

分 类 号：S511.062[农业科学—作物学] S511.032