J. M. Calzada-Marín, J. F. Enríquez-Quiróz, A. Hernández-Garay, Eusebio Ortega-Jiménez, S. Mendoza-Pedroza
Abstract
The objective of this experiment was to conduct growth analysis on “Maralfalfa” grass (Pennisetum sp.) from plantingto determine the optimal time to harvest. The plant morphology (MP), growth rate (TC), height, radiation interception(RI), leaf / stem ratio (H:T), leaf/no leaf (H: NH) and the biomass accumulation, were evaluated at intervals of15 d during a 180 d period, except for the first two samples that were sampled monthly. Data were analyzedusing the GLM procedure of SAS, under an experimental design of randomized blocks, with repeated measuresover time, with three replicates. The MP varied significantly (P<0.01) across different physiological states. Themaximum biomass production and CT was reached at 151 d after planting with 37,297 kg DM ha-1 and 247 kgDM ha-1 d-1, respectively. It also, recorded the highest percentage of RI (97.4), with a height of 2.3 m,approximately. Biomass production of stems and dead material production Maralfalfa grass are correlatedpositively with the increasing age of the plant. The maximum growth rate coincides with the maximum productionof leaves and stems and increased production of total biomass.
Citation format
CALZADA-MARÍN, J. M., et al. Análisis de crecimiento del pasto maralfalfa (pennisetum sp.) en clima cálido subhúmedo. Revista Mexicana de Ciencias Pecuarias, 2014, 5: 247–260.