摘要
通过对早实核桃半同胞子代坚果体积、单果重、出仁率、果壳厚和缝合线宽度等主要经济性状变异的测定、分析、探讨实生子代的变异规律。一般多为劣变，且母树品质越优，子代的劣变程度越大；但超亲优变也为核桃良种选育提供了物质基础。核桃良种推广应采用无性繁殖。
The variant pattern
of
the seeding half-sib progenies of early walnut is studied by analysingvariation in the plant’s
main economic characters including the nut size , the per nut weight,the rate of kernel,the shell
thickness, and the sutural width. Results showed that filialdegradation is the general trend of
variation, with better parents resulting in worseprogenies. On the other hand, however,
transgressive progradation has enabled the plant toproduce materials to be used in selective
breeding. Asexual propagation is recommended inextending good walnut cultivars.
出处
《经济林研究》
1995年第3期20-24,共5页
Non-wood Forest Research
关键词
核桃
半同胞子代
品质
变异
Juglans regia
Half-sib progeny
Nut quality
Variation.
