DESEMPENHO PRODUTIVO DE CULTIVARES DE SOJA NO SUDOESTE GOIANO

Abstract

Soybean crop development is influenced by several environmental factors such as temperature, rainfall, relative air humidity, soil moisture and photoperiod. After sown, seeds are under pressure throughout the formation and maturation process in the field, which can influence post-harvest quality. Starting from the hypothesis that the behavior of soybean cultivars is expressed by the number of days that the plant takes to reach maturity, and this characteristic influences the growth capacity and grain production of the plant. The objective of the present study was to evaluate the yield of different commercial soybean cultivars of the precocious maturation group, recommended and cultivated in southwest Goiás. The experimental design used was a randomized block, with 4 replications in a simple factorial scheme with 5 treatments: T1) SYN 13610; T2) SYN 15600; T3) M 6210; T4) M 7110; T5) ICS 7019. Biometric variables and soybean grain yield were measured. Data were submitted to analysis of variance (p<0.05) and the Tukey mean test (p<0.05). The cultivar M 7110 presents a superior increase in plant height, in the number of nodes and in the number of pods, when compared to the other cultivars.