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›› 1982, Vol. 18 ›› Issue (3): 237-244.

• 论文及研究报告 • 上一篇    下一篇

柳杉选择育种效果评价

刘洪谔   

  1. 浙江林学院
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1982-08-25 发布日期:1982-08-25

EVALUATION OF EFFECTIVENESS IN SELECTIVE BREEDING OF CRYPTOMERIA SPECIES

Liu Hong-e   

  1. Zhejing College of Forestry
  • Received:1900-01-01 Revised:1900-01-01 Online:1982-08-25 Published:1982-08-25

Abstract: 1. From a comparison of the growth rate of Chinese Cryptomeria fortunei Hooibrenk ex Otto et Dietr.and that of Japanese sugi(C.japonica(L.f.) D.Don),including both seedlings and mature trees grown in different geographical localities,it has been shown that the former is better adapted to the warm and humid southern region,while the latter is hardier in the cold winter of the northern region.By such comparison,it is evident,each species has its own genetic merits which might be taken as an indication of rich germaplasm source for improvement of these trees. 2. Test of Chinese sugi seeds from 21 geographical localities showed marked differences in seed weight and germination percentage.They are colsely correlated,with γ= 0.6234. 3. In provenance test of these seeds at 4 stations,the first year seedlings showed statisically significant differences in growth rate.The best one is about twice that of the poorest one.The percentages of increase in growth from seeds of different provenances as compared with those collected at the 4 local stations,are 18—72%.