FENOLOGIA E ÍNDICES PRODUTIVOS DE DIFERENTES VARIEDADES DE SOJA DO SUDESTE GOIANO

Abstract

Soybeans are a grain of high commercial importance throughout the world and represent a large part of the area planted in Brazil. Given this scenario many cultivars have appeared in the market to meet different demands of the producers and few have been characterized in order to facilitate the choice of material by the producer. Therefore, the objective of this study was to verify the phenological and productive characteristics of 23 soybean varieties available in the Southeast region of Goiás. The experimental arrangement was of the factorial type, with plots subdivided in space and with 4 replications, consisting of 23 treatments, composed of different soybean varieties. Plant height, number of pods of 1, 2, 3 and 4 grains, weight of 1000 seeds (PMS), total number of pods, total number of grains, numbers of grains per pods, node number and productivity. The data show that most of the evaluated cultivars were early (74%) and that the main productive indexes of total number of grains, weight of 1000 seeds and productivity are outstanding for early and normal cycle cultivars such as NS 7667 IPRO. It is concluded that the characterization of these materials can collaborate with the choice of the producer when placing the crop in the field, because phenological and productive data are auxiliary and fundamental tools of the productive process.