ASSESSMENT OF FORAGE CACTUS PEAR VARIETIES FOR SEMI-ARID CONDITIONS OF NORTHEAST, BRAZIL
Forage cactus is the most important roughage for dairy cows in the semi-arid regions of Pernambuco, Alagoas and Paraiba in Northeast of Brazil covering about 300,000 ha. This study was conducted at four locations; three in Pernambuco and one in Alagoas, with the purpose of identifying forage cactus varieties more productive than the conventional varieties. The experiment included six varieties: Gigante (T1), Redonda (T2), Miuda (T3), IPA-20 clone (T4), Copena F1 (T5) and Copena V1 (T5), with four replications arranged in a complete randomized blocks design. The planting layout was 1.0 x 0.5 m, and 20 t/ha of cow manure were applied at planting. The plants were harvested two years after planting. Dry matter yield (t DMY ha-1) of IPA-20 clone in this first crop was superior to all varieties tested. Average DMY and their significance values were: T4 (21.36a), T1 (17.95b), T3 (17.42cb), T2 (17.06cb), T5 (15.11cb) and T6 (14.38c). On the other hand, the green matter yield (GMY) of IPA-20 clone was also greater than all other varieties evaluated, as follows: T4 (223.71a), T2 (211.14a), T1 (202.83a), T3 (169.21b), T5 (167.82b) and T6 (162.71b).
Cordreiro dos Santos, D., Lira, M.A., Farias, I., Dias, F.M. and Silva, F.G. (2006). ASSESSMENT OF FORAGE CACTUS PEAR VARIETIES FOR SEMI-ARID CONDITIONS OF NORTHEAST, BRAZIL. Acta Hortic. 728, 177-182
Opuntia, Nopalea, forage plant, roughage