摘要
1989年在福建省洋口林场杉木种子园检测了3个无性系(6421,47,33)、64株标准株、3508个球果。结果表明球果害虫主要是杉木球果麦蛾,而杉木扁长蝽等的危害及炭疽菌、散斑壳菌的侵染可导致球果变色。方差分析显示:球果虫害及变色明显影响鲜果重、种子重、千粒重及出籽率,但它们对发芽率及涩籽率无显著影响。
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.
出处
《南京林业大学学报（自然科学版）》
CAS
CSCD
1992年第1期31-34,共4页
Journal of Nanjing Forestry University：Natural Sciences Edition
基金
本研究系国家七.五攻关项目"杉木种子园建立技术"内容之一
关键词
杉木
种子园
球果变色
害虫
Chinese fir seed orchard
Cone pest
Cone discoloration
Live cone weight
Thousand-seed weight
Germination value
