父母本不同行比对杂交粳稻10优18制种产量的影响  

Effect of Different Row Ratios of Male and Female Parents on Seed Yield of 10 you 18(a Hybrid Nonglutinous Rice Variety)

作　　者：马忠友[1] 范俊山[1] 张春和[1] 王胜军[1] 苏京平[1] 闫双勇 童继平[1] 孙林静[1] 刘学军[1] 

机构地区：[1]天津市农作物研究所,天津300112

出　　处：《贵州农业科学》2010年第6期4-5,9,共3页Guizhou Agricultural Sciences

基　　金：天津市科技支撑计划项目"杂交粳稻稳产高产高纯度制种技术研究"(07ZCKFNC01300);天津市科技创新专项资金项目"杂交粳稻品种创新及良种产业化"(07FDZDNV01101)

摘　　要：研究了10优18制种中不同父母本行比对产量及结实率的影响。结果表明,父母本行比在2∶4~12,行比对制种产量没有显著影响;但处在不同行位不育系的结实率间却存在显著差异,结实率随不育系离父本距离的增加而减少。结果表明,由于小的行比能增加恢复系产量,减少不育系用量,因此,小行比能增加10优18的制种效益。The results from studying effects of different row ratio of male and female parents on seed yield and setting rate of 10 you 18（a hybrid nonglutinous rice variety） showed that the row ratio between 2∶4 and 2∶12 had no significant difference in seed yield but there was significant difference in setting rate between different row ratios,and the setting rate reduced with distance increment between male parent and female parent.The low row ratio with advantage of raising yield of female parent and reducing seed amount of male parent can be used in seed production of 10 you 18.

关 键 词：杂交粳稻 10优18 行比 结实率 制种产量 

分 类 号：S511.22[农业科学—作物学]