文章基本信息

标题：Efecto de la densidad de semillas en la germinación de Isolatocereus dumortieri y Myrtillocactus geometrizans, cactáceas columnares endémicas de México
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作者：ENRIQUE JURADO ; JOEL FLORES
期刊名称：Revista Mexicana de Biodiversidad
印刷版ISSN：1870-3453
出版年度：2009
卷号：80
期号：001
出版社：Instituto de Biología
摘要：The effect of seed density on the germination of 2 columnar cactus species ( Isolatocereus dumortieri and Myrtillocactus geometrizans ) was evaluated using 5 seed density treatments (1, 5, 10, 20 and 50 seeds). Isolatocereus dumortieri had a lower germination percentage with increasing seed density; germination of M. geometrizans was not affected by seed density. These results suggest that I. dumortieri seedlings might compete for resources with siblings.
关键词：clump seed dispersal;seedling competition;dispersión agrupada de semillas;competencia entre plántulas