Comparison of cultivars and hybrids of elephant grass pennisetum purpureum

Da Veiga J.B.

Pesquisa Agropecuaria Brasileira 14(4): 359-364


ISSN/ISBN: 0100-204X
Accession: 005006577

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Comparisons of dry forage yield and the leaf:stem ratios among 16 cultivars and hybrids of elephant grass (P. purpureum, Schum) were made on the low-fertility medium-texture yellow latosol, utilizing fertilizer for 2 years. The most productive cultivars and hybrids, which did not differ statistically, were, for the 1st year, 'Taiwan A-146', 'Taiwan A-148', 'Duro Volta Grande', 'Napier S.E.A.', 'Mercker S.E.A.', 'Porto Rico', 'Porto Rico-534', 'Mole Volta Grande' and 'Merckeron Comum' and those for the 2nd year, 'Napier S.E.A.' and 'Mole Volta Grande'. The best cultivars and hybrids whose yields (kg/ha of dry forage), did not differ statistically for 2 yr were 'Merckeron Comum', 50.136; 'Taiwan A-146', 48.113; 'Napier S.E.A.', 47.934; 'Mercker S.E.A.', 45.778; 'Taiwan A-148', 44.935; 'Mole Volta Grande', 44.693; 'Porto Rico', 43.516; and 'Duro Volta Grande', 42.445. The highest stem:leaf ratio was shown by 'Merckeron Comum' and 'Taiwan A-146'. The cultivars and hybrids which showed the most pronounced loss of production due to the change in the seasonal rain fall distribution were 'Taiwan A-146' (40%), 'Merckeron Comum' (35%) and 'Mercker S.E.A.' (35%).