摘要
根据国内外杨树育种实践，讨论了杨树遗传育种的一些理论问题：①杨树的育种目标和杂交遗传变异平行性；②从遗传角度分析了交互轮回选择法是一种科学的杨树育种程序；③回交能克服杨树杂种不育和后代夭亡。
Current poplar breeding practices pose severaltheoretical problems concern-ing poplar
heredity and breeding:(1)the poplar breeding target and the parallelism of crossedgenetic
variation;(2)genetic analysis has demonstrated that reciprocal recurrent selection is avalid
procedure for poplar breeding;(3)backcrossing promotes egg and pollen fertility of off-spring and
overcomes hybrid sterity and the die young of offspring.
出处
《林业科学研究》
CSCD
北大核心
1996年第1期80-86,共7页
Forest Research
关键词
杨树
杂交
遗传变异
轮回选择
回交
poplar,parallelism of crossed
genetic variation,reciprocal recurrent selec-tion,backcrossing (
