水稻高、矮秆杂种以矮秆品种复交F_1的半矮秆、产量及外观品质性状的育种效应  

BREEDING EFFECT OF SEMIDW ARF, YIELD AND GRAIN EXTERIOR QUALITY CHARACTERS IN RECROSSINO F_1 WITH DW ARF VARIETY OF TALL AND DW ARF RICE HYBRID

作　　者：顾信媛 黄超武[1] 

机构地区：[1]华南农业大学作物遗传育种研究室

出　　处：《华南农业大学学报》1989年第4期85-92,共8页Journal of South China Agricultural University

基　　金：国家自然科学基金~~

摘　　要：8个水稻高矮秆杂种以矮秆品种复交组合F_1高矮秆呈1:1分离。控制株高和抽穗日数两对性状是独立遗传的。在矮秆群体中选择半矮秆个体可得到穗数较多、稻穗较大、粒数多的高产个体。单株穗重与有效穗数、主穗粒数;穗粒数与穗长呈极显著正相关。谷米粒长/宽比与垩白率基本上呈负相关。The segregating ratio between tall and short plants in 8 recrossing rice combinations F1 is 1:1 Plant height and heading day showed independent inheritance.Plants with high lyied,big and more panicles and more grains would result if semidwarf plants were selected in dwarf populations.The results indicated that theer was a significant positive correlation between panicle weight of plant and panicle number,grain number of main panicle;and between panicle grain number and panicle length.There is a negative correlation between length/width of grain and grown rice and ratio of chalky grain.

关 键 词：水稻 复交组合 半矮秆 杂种 

分 类 号：S511.103.5[农业科学—作物学]