水稻不同带蘖数秧苗的生长规律研究  

Growth Pattern of Rice Seedlings with Different Tiller Number

作　　者：梅凯华 陈蔚[1] 

机构地区：[1]黄冈市农业科学院,湖北黄冈438000

出　　处：《湖北农业科学》2017年第22期4227-4230,共4页Hubei Agricultural Sciences

基　　金：湖北省农业科技创新中心资助项目(2016-620-001-03)

摘　　要：选取4个不同类型的水稻(Oryza sativa L.)品种,分中季和晚季进行试验,研究同一秧龄、不同生态条件下、不同带蘖数秧苗的生长生产规律。结果表明,秧苗单株带蘖数越多,播始历期越短,主茎总叶片数越少,单株成穗较多,增产达到显著或极显著水平,多蘖秧是水稻增苗增穗的基础;单株带蘖数越少,播始历期越长,主茎总叶片数越多,产量显著降低。Four different types of rice varieties were selected and tested in middle or late season,studying on the character of growth and production of the seedlings of the same age but under different ecological conditions and with different tiller number.Results showed that the more tillers the seedling had,the shorter the period was from sowing to heading,the number of main stem total leaf decreased,the number of panicles per plant increased,and the yield increased significantly or extremely significantly.Rice seedlings with more tillers were the basis of increasing the panicles.The fewer tillers the seedling had,the longer the period was from sowing to heading,the number of total leaves on the main stem increased,and the yield decreased significantly.

关 键 词：水稻(Oryza SATIVA L.) 分蘖数 叶蘖同伸 播始历期 主茎总叶片数 

分 类 号：S511[农业科学—作物学]