杂交稻制种母本插植方式与颖花数的关系研究  

Studies on relationship between the Planting Ways of Female Parents & Quantity of glume Floret Bears in Hybrid Rice Seed Production

作　　者：李成德 张文庆 王新华 

机构地区：[1]陕西省洋县种子公司,723300

出　　处：《种子》1993年第5期24-27,共4页Seed

摘　　要：杂交水稻制种母本插植方式不同,会引起颖花数的变化。而母本最多的颖花数是取得制种高产的基础,是其它各项技术措施作用充分发挥的前提。试验研究表明,母本插植方式以行距×穴距=12×12cm、每穴插植9苗为宜。这种插植方式不仅能获得每亩母本最多的颖花数,而且在实际操作时可行。这种插植方式的基本苗为每亩25.653万,有效穗为每亩28.935万,每穗粒数为99.31粒,颖花数为每亩2879.93朵。The different ways to plant the female parents can affect the floret bears. And the floret bears is the base to produce higher absolute yield, it is the essential reprequisite for other technique to be used. it is most suitable for the female parents to be planted with a spacing of 13. 3×13. 3cm, 9 tillers per hill can be planted. Studies have shown that the ways to plant are not only to get the greatest floret bears but also to be possible to use while planting. There are 256, 530 tillers per ha which are ...

关 键 词：母本 插植方式 基本苗 有效穗 穗粒数 颖花数 

分 类 号：S3[农业科学—农艺学]