PATTERNS OF SEED LONGEVITY AND GERMINATION IN THE TROPICAL RAIN-FOREST

被引:296
作者
VAZQUEZYANES, C
OROZCO-SEGOVIA, A
机构
[1] Centro de Ecología, UNAM, Ciudad Universitaria, 04510, México
来源
ANNUAL REVIEW OF ECOLOGY AND SYSTEMATICS | 1993年 / 24卷
关键词
ECOLOGICAL LONGEVITY; SEED DORMANCY; SEED VIABILITY; PHOTOBLASTISM; GAPS;
D O I
10.1146/annurev.es.24.110193.000441
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Tropical rainforest plants produce seeds showing a wide range of sizes, shapes, structures, chemical composition, water content, dormancy mechanisms, and patterns of longevity. Prompt germination seems to be the most common behavior, although there are many cases where germination is delayed by a hard coat or endogenous or enforced dormancy mechanisms. Some gap colonizers show sophisticated light or temperature regulated dormancy. Most rainforest seeds remain alive for a short time in the soil, even those that form part of the soil seed bank.
引用
收藏
页码:69 / 87
页数:19
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