Resumo

HERRERA, R. S. Clones of Pennisetum purpureum for different ecosystems and productive purposes. Cuban J. Agric. Sci. [online]. 2015, vol.49, n.4, pp.515-519. ISSN 0864-0408.

This study reports the results of four experiments, with a minimum duration of two years, carried out in typical red ferrallitic soils and using random blocks design with five replications, in order to establish the influence of strategic fertilization with N on Pennisetum purpureum clones, tolerant to drought, and determine the differences among others that could be used forage production or grazing. Several drought tolerant clones showed their superiority during dry period (CT-601, CT-602, CT-604, CT-605, CT-608 and CT-609) regarding CT-115, when they were fertilized during rainy period. Other clones (14, 18, 19, 20 and 21) showed ability to produce forage during the dry season, while 41 and 43 showed characteristics for grazing. Basic and chemical composition studies are recommended, which will allow to explain the differences among clones, as well as experiments in grazing with promising clones. It is also suggested the introduction of the best clones, which are drought tolerant and strategically fertilized with N during rainy season, to social practices

Palavras-chave : clones; Pennisetum; forage; grazing.

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