Efeito de biorregulador de crescimento sobre a produtividade e características estruturais a aveia branca submetida ao corte

Abstract

This research was conducted to evaluate forage production, structural composition of pasture and grain yield of URS Taura white oat, subjected to forms of application of a plant growth regulator and harvest regimes in the region of the Missões of Rio Grande do Sul state. Sixteen plots were used in a completely randomized design with four treatments and four area replications. The variables studied were the production, residue and forage mass. The structural composition of the pasture, grain yield, hectolitre weight and thousand seed weight were also evaluated. The plant growth regulator is effective to increase the mass and forage production in both harvest regimes. The structural composition of the whole plant and residue weren't afected by plant growth regulator, except in the retardation of plants senescence under two cuts. The yield is positively influenced in both cutting regimes, primarily through foliar application of plant growth regulator. The product was efficient in different forms of application for thousand grains weight.