[Seed germination and key to seedling identification for six native tree species of wetlands from Southeast Mexico].
Wetland tree species are of importance for economic and restoration purposes. We describe the germination process and seedling morphology of six arboreal native species typical of Southeastern Mexico: Annona glabra, Ceiba pentandra, Pachira aquatica, Haematoxylum campechianum, Coccoloba barbadensis and Crataeva tapia. A total of 300 seeds per species were planted in a mixture of sand, cocoa plant husk and black soil (1:1:1), and maintained in a tree nursery with 30% artificial shade, from February to November of 2007. We carried out the morphological characterization, and elaborated a key to seedlings based on: 1) germination type 2) seedling axis and 3) leaf elements. P. aquatica has cryptocotylar hypogeal germination, the others have phanerocotylar epigeal germination. Germination rates were high (>86%), except for C. barbadensis (69%).
El Colegio de la Frontera Sur, Sistemas Silvícolas y Agroforestales, Carretera a Reforma km 15.5, R/a. El Guineo 2a. Secc. Centro, Villahermosa, Tabasco, México. zamlf@yahoo.com.mx
Luis Felipe
LF
Zamora-Cornelio
Susana
S
Ochoa-Gaona
Georgina
G
Vargas Simón
Jorge
J
Castellanos Albores
Bernardus H J de
BH
Jong
D029061:Annonaceae / Q000502:physiology; D035161:Bombacaceae / Q000502:physiology; D031483:Capparaceae / Q000502:physiology; D007887:Fabaceae / Q000502:physiology; D018525:Germination / Q000502:physiology*; D019684:Magnoliopsida / Q000145:classification / Q000502:physiology*; D008800:Mexico; D019664:Polygonaceae / Q000502:physiology; D036226:Seedlings / Q000502:physiology*; D012639:Seeds / Q000254:growth & development / Q000502:physiology; D053833:Wetlands