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杉木生长与材性联合遗传改良研究(PDF)

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

Issue:
1993年01期
Page:
1-8
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
RESEARCH ON THE JOINT GENETIC IMPROVEMENT OF GROWTH AND WOOD PROPERTIES IN CHINESE FIR (CUNNINGHAMIA LANCEOLATA (LAMB.) HOOK.)
Article ID:
1000-2006(1993)01-0001-08
Author(s):
Shi Jisen Ye Zhihong Wen Yuzhen Yu Rongzhuo Li ShoumaoChen Renxian Liu Dalin Zhang Fushou Li Yuke
Nanjing Forestry University
Keywords:
Cunninghamia lanceolate Growth Wood property Joint genetic improvement Provenance Family Early prediction Genetic gain
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1993.01.001
Document Code:
A
Abstract:
Based on a series of research, achievements on joint genetic improvenent of growth and wood properties in Chinese fir were represented. The results show that:(1) It was the applied sampling method to take a single core sample through pith at breast height (CSBHTP) for wood-property e-valuation in joint genetic improvement in Chinese fir, which is the undistructural sampling method. (2) SG and TL are the important traits in joint genetic improvement, SG was strongly realted to the characters of MOE, MOR, IBS and MCS. (3) The genetic variation patterns for growth and wood properties were different, growth traits were negatively related to longitude, while SG was increasing along with the increasing of latitude, and the eastern region of the central distribution area of Chinese fir may be the ’superior’ gene pool both for growth and wood properties. (4) There was a significant genetic variation among families from open-pollinated, tester and diallel mating system ; the individual and family heritability on SG were 0. 29 and 0. 5-respectively; both growth and wood property characters were strongly influenced by the general combining ability of female parent and maternal effect, which is the first time to found such a genetic effect on SG by the maternal factor on Chinese fir. (5) There was no significant correlation between growth and wood property, which seems independent each other and can be improved together genetically. (6) There was a significant correlation between the juvenile and the mature wood property (at rotation age) , which can be properly predicted by the juvenile SG and TL of core sampling around 15-year-old. (7) The SG can be kept unchanged and/or increased 5 % through joint genetic improvement, while the growth traits could be improved as better as possible.

References

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Last Update: 1900-01-01