Avaliação de forrageiras nativas especialmente do gênero Paspalum

Abstract

Since february 1978 until June 1982, 205 kinds or varieties of gramineous and leguminous plants were introduced in FCAP to voluation of its potentials for feeding the catle. The preferency was given to the kinds of Paspalum gender. Accurate selection was made in the initial phase of the research, reason by only 74 kinds ingressed in Germplasm Bank, aiming studies prossecution. Among the 74 varieties, 25 were submitted to agronomical tests in rotative herbage, including green mass produetion, agressivity, profundity of rcots, being able to be recuperated after the pasture and the burning resistency against insect attack (Deois incompleta Walquer), acceptability, behavior in associated plantation, adaptability to poor and acid soils, food value and digestíbility. As oufstanding witness of valuation parameters, was used the "quicuio" grass (Brachiaria humiãicola Stent.). Four grasses were selected: FCAP-12 (Paspalum secans Hich. Chase.), FCAP-43 (Paspalum plicatulum Mich. Vel aff.), PCAP-6 (Paspalum plicatulum Mich. Vel aff.) and PCAP-8 (Paspalum coryphaeum Trind.). The first three, as well as the four paspalum associated, showed superiority over the quicuio, principally about resistency against insects attacks, being able to be recuperated after the pastur and the burning, as well as in green mass produetion. Except about agressivity, larger in the quicuio, there was equivalency among it and the paspalum varieties, so isolated as associated. The research was repeated in 9 private farms located in different phisiographical zones of the State of Pará.