JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 1991, Vol. 15 ›› Issue (02): 7-10.doi: 10.3969/j.jssn.1000-2006.1991.02.002

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GEOGRAPHIC VARIATION AND INHERITANCE, CORRELATION AND SELECTION OF TRAITS OF PROVENANCES OF CHINESE FIR

Ye Zhihong Shi Jisen Weng Yuzhen Li Shaumao Yu Rongzhou Chen Renxian (Nanjing Forestry University)   

  1. Yangkou Forestry Farm, Fujian Province
  • Online:1991-06-18 Published:1991-04-18

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.