Resumen

LEDEA RODRIGUEZ, José Leonardo; BENITEZ GIMENEZ, Diocles Guillermo; ARIAS PEREZ, Ramón Crucito  y  GUERRA MANSO, Adania. Agronomic Behavior of Cenchrus purpureus Cultivars Tolerant to Salinity. Rev. prod. anim. [online]. 2017, vol.29, n.3, pp.18-28. ISSN 2224-7920.

To determine the effect of cutting age (60, 90, 120 days), and cultivar (CT-500 and CT-115) on some yield components in new varieties of Cenchrus purpureus, a study was made at the Experimental Station of Pastures and Forages, at the Jorge Dimitrov Agricultural Research Institute. The effects of cutting age (3), cultivar (2), and their interaction (3 x 2) on yields and some agronomic variables were controlled by a randomized block design. Interaction did not to affect the morphological variables of leaves and stems, though it did affect plant height. The cultivars had significant differences (P < 0.001) for the ages of 60 and 90 days; whereas for the number of basal shoots and percent of dry matter in the whole plant, CT-115 was significantly higher at 60 and 120 days, respectively. The total growth rate and biomass duration significantly phased out at 90 days, toward CT-500. Both varieties showed potential for high dry matter production per hectare, and only differed (P < 0.001) from the 120 days in the forage areas with saline soils. These results must be considered as preliminary data for the design of a variety structure in saline forage areas.

Palabras clave : Morphology; productivity; Cenchrus purpurus; Pennisetum purpureum.

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