01265nab a2200265 a 4500 AR-ReUNN 20260702003308.0 260630s2006 ag |||||||||||||||||eng eng Maiti, R. K. 154420 Hernández Piñero, J. L. 154419 Valdez Marroquín, M. 154492 Seed ultrastructure and germination of some species of Cactaceae / R. K. Maiti; J. L. Hernández Piñero; M. Valdéz Marroquín 2006 9 páginas fot. byn., fot. col. The variations in seed ultrastructure of species of Cactaceae is related in this paper to their germination capacity. Rapid and high percentage of germination is associated with a thin testa and the presence of starch granules. It was also found that no germination occurred in the darkness but only after light exposure. This may be related to the activation of the phytochrome system. Cactaceae 61376 Germinación 8678 Semilla 116145 Phyton : Revista Internacional de Botánica Experimental = International Journal of Experimental Botany 0031-9457 v. 55 (1994) 238927 ART (IBONE)34514 238997 238997 238997 AR-ReUNN spa AR-ReUNN aacr2