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杉木种源地理变异的影响因子及性状遗传、相关和选择(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1991年02期
Page:
7-10
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
GEOGRAPHIC VARIATION AND INHERITANCE, CORRELATION AND SELECTION OF TRAITS OF PROVENANCES OF CHINESE FIR
Article ID:
1000-2006(1991)02-0007-04
Author(s):
Ye Zhihong Shi Jisen Weng Yuzhen Li Shaumao Yu Rongzhou Chen Renxian (Nanjing Forestry University)
Yangkou Forestry Farm, Fujian Province
Keywords:
Cunninghamia lanceolata Provenance Climatic factors Adaptation Heritability Genetic correlation Selection index
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1991.02.002
Document Code:
A
Abstract:
This study reveals that the leading climatic factors which result in variation of growth are temperature, humidity and hours of sun. But for specific gravity, the main reason for decreasing from east to west seems to be hours of sun and precipitaion. There is no evidence that the traits of provenance are related to its adaptation to climate. There are medium or stronger degrees of genetic control for all traits measured on the provenance level (0. 43-0.75). Highly phenotypic and genetic correlations were found among three growth tratis and among two branch traits and between crown and diameter. Specific gravity is apparetly inherited independently. By using Smith-Hazel index selection, it is pussible to maximize genetic gains of growth and branch traits (especially for DBH and H at 8-year-old) while holding genetic gains of specific gravity to zero. Ten super provenances were selected.

References

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Last Update: 1900-01-01