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水稻主要经济性状一般都为数量性状,受多基因的控制,易为环境的变化所左右,这就给正确而有效地选择杂种后代增加了困难。近年来,国内外育种学家为了从表现型中排除环境条件的影响,进行了主要经济性状遗传力的测定。根据遗传力进行选择,就可以增加育种工作的预见性,提高选择的效果。遗传力是表示在表现型的变异中遗传型变异所占的比率,是育种工作者的重要参考数据。然而对育种工作来说,更为重要的是要对杂种的各个世代进行遗传力的分析测定。这样,才能更好地指导育种工作,改进选种
The main economic traits of rice are generally quantitative traits, controlled by multiple genes and easily influenced by environmental changes, which makes it difficult for the correct and effective selection of hybrid offspring. In recent years, breeders at home and abroad in order to exclude from the phenotypic impact of environmental conditions, conducted a major economic traits Heritability determination. According to heritability to choose, you can increase the predictability of breeding work, improve the effectiveness of the choice. Heritability is the percentage of genetic variations in phenotypic variation and is an important reference for breeders. However, for breeding work, it is even more important to carry out heritability analysis on all generations of hybrids. In this way, we can better guide the breeding work and improve the selection