【摘要】 对红松3个种源60个家系3年生子代苗的研究结果表明,红松种源间及种内家系间苗高、地径和二次生长高均有显著差异;种源间的变异量大于种源内家系间的变异量;苗高的遗传变异大于地径;苗高、地径、当年高和二次生长高的家系遗传力分别是0.860,0.556,0.660,0.184。更多还原

【Abstract】 The 3-year old progeny seedlings of sixty half-sib families of Pinus koraicnsi from three Provenances are studied in this paper. The results. are as follows: The seedling height, basal diameter and secondary grow th are obviously different among the provenances and families respec- tively. The variations among provenances are bigger than that among fami lies; The genetic varitation of seedling heihght is obviously bigger than that of basal diameter; The family heritabilities of the seedling height, basal diameter, the height in the same year and the secondary incre ment of height are 0.860, 0.556, 0.660 and 0.184 respectively.更多还原