红松无性系结实性状及种子营养成分的遗传变异研究

Genetic Variation Study on Fruiting Characters and Seeds Nutrition Components of Pinus koraiensis Sieb. et Zucc. Clones

红松无性系产量变异类型丰富,可以作为优良无性系选择的重要指标,无性系的基因效益是主导红松结实性状和种子营养成分的决定因素。无性系各性状遗传力0. 4127-0. 7575,遗传增益8. 2%-28. 05%,产量性状重复力74. 76%以上,通过优良无性系的选择可以获得较高且稳定的遗传增益。

The yield variation types of Pinus koraiensis clones are abundant,which can be used as an important index for selection of good clones.The genetic benefit of clones is the decisive factor for dominant seed setting traits and seed nutrient components of P.koraiensis.The heritability of clones was 0.4127~0.7575,the genetic gain was 8.2%~28.05%,and the repeatability of yield traits was more than 74.76%,higher and stable genetic gains could be obtained through selection of superior clones.