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杉木种子园球果虫害及变色对种子影响的研究(PDF)

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

Issue:
1992年01期
Page:
31-34
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
THE STUDY OF EFFECT OF CONE PESTS AND DISCOLORATION ON OUTPUT AND QUALITY OF SEED IN CHINESE FIR SEED ORCHARD
Article ID:
1000-2006(1992)01-0031-04
Author(s):
Qian Fanjun(Nanjing Forestry University)Weng Yuzhen Yu Rongzhuo Zheng Binlin
Yangkou Forest Farm Fujian Province
Keywords:
Chinese fir seed orchard Cone pest Cone discoloration Live cone weight Thousand-seed weight Germination value
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1992.01.006
Document Code:
A
Abstract:
The 3508 cones and seeds of 64 sample trees belonging to 3 clonals (6421,47,33) were tested at Chinese fir seed orchard in Yangkou Forest Farm, Fujian Province in 1989. The results showed that Dichomeris sp. was the main cone pest, but the damage of Sinorsillus piliferus and Gleosporium sp. and Lophodermium sp. can set up discoloration of cones. Cone pests and discoloration conspicuously affected the cone weight, seed weight, thousand- seed weight and produced seed rate each 100 cones (avarage descent 20. 9%-73. 7%). But they don’t have any conspicuous effect on germination value and woody value of seeds.

References

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Last Update: 1900-01-01