湖北省审定的水稻品种基本情况分析 |
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re the most used parent materials. In terms of the types of rice varieties, the number of two-line indica hybrid varieties showed a rising trend like waves, while the number of conventional indica varieties and japonica varieties decreased gradually. The annual average yield of varieties increased steadily, and the yield gap between conventional and hybrid varieties reduced gradually. The rice qualitative average ratio was 67.3%. The resistance to bacterial blight abated, and the resistance to rice blast declined greatly. Key words: rice; certified varieties; basic situation; analysis 随着农作物育种的进步和种植业发展的需要,湖北省农作物品种审定工作不断加强和完善,审定通过了一大批有影响的优良品种,极大地推动了水稻品种结构的调整和生产效益的提高[1],如近几年湖北省主推的早稻品种两优287、鄂早18;中稻品种两优培九、扬两优6号;双季晚稻品种中9优288、金优38以及一季晚稻品种黄华占等深受农民的喜爱。为了方便了解近年来湖北省水稻品种审定情况以及水稻育(引)种取得的进展,进行了湖北省审定水稻品种基本情况的分析,旨在为水稻新品种的选育、引进、审定、推广和应用提供参考。 1材料与方法 材料来源于湖北省农作物品种审定委员会审定公告,对审定品种的选育单位和母本材料进行数学统计,将品种类型分为籼型、粳型,再内分为常规品种与杂交品种,籼型品种分早、中、晚稻品种,籼型杂交品种又分两系和三系杂交品种。对每个类别品种的平均数上一页 [1] [2] [3] [4] [5] [6] 下一页 |
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上一个论文: 水稻大中棚育苗的技术措施 下一个论文: 试论水稻重大病虫害防治技术 |
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