文献类型：期刊文献

中文题名：我国特有濒危植物银杉的球果特征与出种量

英文题名：The Cone and Seed Output Characteritics of Endemic and Endangered Species Cathaya argyrophylla

作者：李庆梅[1] 谢宗强[2] 朱日光[3]

第一作者：李庆梅

机构：[1]中国林科院林业研究所;[2]中国科学院植物研究所;[3]湖南省资兴市林业局

年份：1997

期号：2

起止页码：1-3

中文期刊名：种子

外文期刊名：SEED

收录：CSTPCD;;北大核心:【北大核心1996】；CSCD:【CSCD_E2011_2012】；

语种：中文

中文关键词：特有濒危植物;银杉;球果;出种量

外文关键词：endemic and endangered species, Cathaya argyrophylla, cone, seed output

分类号：S791.19

摘要：通过对不同生境下的银杉球果的长度、宽度和重量的统计分析，发现不同的植株个体对球果的长度和宽度的影响达极显著水平，对球果重量的影响达显著水平，每个银杉球果的出种量最少为0粒，最多为13粒，平均仅为4.267粒，无种子的球果比例高达12．2％。同一植株银杉的不同球果的出种量没有明显差异，说明就同一植株而言，其有性生殖是同步的，球果的发育程度比较接近。
The length,width and weight of the cones of C. argyrophylla in different habitats were analysed. The resultsshowed that the effect of different mother plants on length and width of cones was very significant,and on theweight of cones was significant. The minimum,maximum and average plump seed number per cone of this specieswas respectively 0, 13 and 4. 267. No significant difference was found fot the seed number in different cones fromthe same mother plant. This showed that for the same mother plant the sexual reproduction was in the samedevelopmental level and the cones were samely or nearly developed.