Azuche, Hymenachne amplexicaulis (Rudge) Nees, Forage Genetic Resources for Floodplains in Tropical Mexico |
| |
| Authors: | J F Enriquez-Quiroz A R Quero-Carrillo A Hernandez-Garay E Garcia-Moya |
| |
| Institution: | (1) Forages Department, National Institute for Forestry, Agricultural and Animal Research (INIFAP)-Mexico, CAEPAP, Ciudad Isla, Veracruz, Mexico;(2) Graduate College for Agricultural Sciences, Campus San Luis Potosí, Iturbide 73, 78600 San Luis Potosí, Salinas, Mexico;(3) Graduate College for Agricultural Sciences, Texcoco, Mexico;(4) CRRA Faculte Medicine Veterinaire, Universite de Montreal, 3200 Rue Sicotte, J2S 7C6 St-Hyacinthe, QC, Canada |
| |
| Abstract: | Azuche Hymenachne amplexicaulis (Rudge) Nees is a C3 grass native to tropical flooded areas in South and Central America with 2n = 2x = 24 chromosomes. During 2002 and 2003, the Graduate College for Agricultural Sciences (CP) and the Mexican Institute for
Forestry, Agriculture and Animal Production Research (INIFAP) organized an expedition to collect the genetic diversity of
this species within tropical Mexico, in order to preserve and study it under nursery conditions. The collection was performed
from Puerto Vallarta to Tapachula on the Pacific and from Palizada, Campeche to Veracruz on the Gulf of Mexico coast, and
also crossing sections through the Tehuantepec isthmus and through the Sierra Madre de Chiapas. Ninety sites were sampled,
on each, 25 tillers were collected, tagged and stored in a commercial soil mix until establishment of individual plants within
6 l pots. The largest Azuche prairie observed had a 10 ha surface, with the grass limited to small surfaces of up to 0.25 ha.
It was not found on places with salty water, even seasonally. The Pacific coastal side is less abundant in niches for this
species. Producers’ experience indicated that this grass is beneficial for milk production compared with other forage grasses,
mainly C4, growing in flooded areas. Initial studies of genetic diversity showed wide morphological variation for sprouting ability,
leaf width and length among samples. Azuche diversity showed good potential production attributes for farm and wild animals,
under flooding tropical savanna conditions. |
| |
| Keywords: | Flooded savannas Forage grass genetic resources Hymenachne amplexicaulis Tropical grasses |
| 本文献已被 SpringerLink 等数据库收录！ |
|
