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Efecto de la densidad de semillas en la germinación de Isolatocereus dumortieri y Myrtillocactus geometrizans, cactáceas columnares endémicas de México

2009; National Autonomous University of Mexico; Volume: 80; Issue: 001 Linguagem: Inglês

10.22201/ib.20078706e.2009.001.591

2007-8706

Enrique Jurado, Joel Flores,

Plant and soil sciences

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.