ATRIBUTOS FORRAJEROS Y CARACTERÍSTICAS ESTOMÁTICAS DE TRES PASTOS NATIVOS EN UN BOSQUE DE PINO EN CLIMA SEMIÁRIDO

Jesus E.  Ochoa-Lechuga; Jonathan R.  Garay-Martínez; Edith  Ramírez-Segura; Fernando  Lucio-Ruíz; Wilbert A. Poot-Poot; Lizeth  Vázquez-Rocha; Santiago Joaquín-Cancino

doi:10.29393/CHJAAS41-47FROJ70047

Authors

Jesus E. Ochoa-Lechuga Universidad Autónoma de Tamaulipas, Facultad de Ingeniería y Ciencias. Supermanzana Campus, Centro Universitario. C.P. 87149, Tamaulipas, México
Jonathan R. Garay-Martínez Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Campo Experimental Las Huastecas. Carretera Tampico-Mante km 55. C.P. 89610, Tamaulipas, México
Edith Ramírez-Segura Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Centro Nacional de Investigación Disciplinaria en Agricultura Familiar. Carretera Lagos de Moreno-San Luis Potosí km 8.5. C.P. 47540, Jalisco, México
Fernando Lucio-Ruíz Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Campo Experimental San Luis. Carretera San Luis Potosí-Matehuala km 14.5. C.P. 78432, San Luis Potosí, México
Wilbert A. Poot-Poot Universidad Autónoma de Tamaulipas, Facultad de Ingeniería y Ciencias. Supermanzana Campus, Centro Universitario. C.P. 87149, Tamaulipas, México
Lizeth Vázquez-Rocha Universidad Autónoma de Tamaulipas, Facultad de Medicina Veterinaria y Zootecnia Dr. Norberto Treviño Zapata. Carretera Cd. Victoria-Llera de Canales km 5. C.P. 87274, Tamaulipas, México
Santiago Joaquín-Cancino Universidad Autónoma de Tamaulipas, Facultad de Ingeniería y Ciencias. Supermanzana Campus, Centro Universitario. C.P. 87149, Tamaulipas, México

DOI:

https://doi.org/10.29393/CHJAAS41-47FROJ70047

Keywords:

Grassland, forest rangeland, drought stress adaptation, extensive grazing, silvopastoral system

Abstract

The rehabilitation or establishment of pastures in arid and semi-arid zones requires the selection of ecotypes with good forage performance and quality, while also being adapted to restrictive environmental conditions. The objective of this study was to evaluate the forage production, nutritional composition and stomatal characteristics of three native grasses (Banderita, Lobero and Gigante) in a pine forest under a semi-arid climate in Tamaulipas, México. The variables evaluated were plant height (PH), dry matter (DM) yield, crude protein (CP), neutral detergent fiber (NDF) and acid (ADF), hemicellulose (HEM), digestibility (DMDIV), relative forage value (RFV), number of stomata (NS), epidermal cells (EC), and stomatal area (SA). The variables were analyzed in a completely randomized design (GLM) and a Tukey test (? = 0.05) was applied. Gigante grass exhibited higher PH (85 cm) and DM yield in leaf (516 kg ha^-1), while it also presented 99 g kg^-1 of CP. Banderita recorded the lowest values of NDF, ADF and HEM (714, 247 and 467 g kg^-1, respectively), but it presented the highest levels of DMDIV (601 kg ha^-1) and RFV (78). Gigante showed greater SA on the abaxial and adaxial surface, with values of 349 and 345 ?m², respectively. Differences in biomass, nutritional value and stomatal characteristics were observed among the evaluated species. Banderita and Gigante stood out for their forage yield and quality, showing potential for use in pine-based silvopastoral systems in arid and semi-arid areas.