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3种水稻物理去雄方法的杂交效果比较

Comparison of Hybridizing Efficiency among Three Physical Emasculation Methods in Rice
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摘要 采用3种常用的水稻物理去雄方法,利用多种杂交组合,考察杂交结实率、杂种发芽率、真杂种率和杂交效果等指标。结果表明,对于长粒型、花药较大的籼稻品种,采用温烫去雄法杂交效果较好;对于短粒型、花药较小的粳稻品种,采用真空泵去雄杂交效果较好;镊子去雄法整体上杂交效果较差。表明对颖花特性不同的亲本应采用不同的去雄方法,才能提高杂交效果。 Using different types of rice varieties as the materials,three common physical emasculation methods were evaluated on their hybridizing efficiency according to the parameters of seed setting rate,seed germination rate and true hybrid seed rate of the crosses.The results showed that the method of hot water emasculation(HWE)had the best hybridizing efficiency for indica rice varieties with long spikelets and big anthers while the method of vacuum machine emasculation(VME)had the best hybridizing efficiency for japonica rice varieties with short and round spikelets and small anthers.The method of forcep emasculation(FE)revealed a poor hybridizing efficiency as a whole.It is indicated that appropriate emasculation methods should be used according to the spikelet characteristics of different rice varieties to improve the hybridizing efficiency.
作者 徐伟东 陆强 黎菊 蔡金洋 XU Wei-dong;LU Qiang;LI Ju;CAI Jin-yang(Jiaxing Academy of Agricultural Sciences,Jiaxing,Zhejiang 314016,China)
出处 《杂交水稻》 CSCD 北大核心 2019年第4期57-61,共5页 Hybrid Rice
基金 嘉兴市科技计划项目(2014AZ21004)
关键词 水稻 杂交 去雄方法 杂交效果 rice hybridizing emasculation method hybridizing efficiency
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