Agronomic characteristics of peanut BRS 421 OL as a function of different seed densities in southeastern Mato Grosso state

Abstract

The present work aimed to evaluate the agronomic characteristics in different densities of BRS 421 OL peanut plants, in the southeastern region of the state of Mato Grosso, as a function of different seed densities. The experiment was carried out in the agricultural year 2021/22, in the experimental area of ​​the Federal Institute of Education, Science and Technology of Mato Grosso – Campus São Vicente, Campo Verde Reference Center, located in the municipality of Campo Verde – MT. The experimental design was in randomized blocks, with four replications. The treatments were four densities: 8, 16, 24 and 32 seeds m^-1. The cultivar used was BRS 421 OL, developed by Embrapa's PMA. The plots were composed of four lines of three meters in length, with a spacing between lines of 0.90 m, an interval between plots of one meter and with a total plot of 5.4 m². The parameters evaluated were plant height at 22, 31, 47, 55, 69, 77, 87 and 100 days after planting (DAP), weight of 100 grains and pod yield. Plant heights were influenced by different seed densities, whereas the mass of 100 grains had the same significance as the results. The highest yield of pods was obtained with the density of 16 seeds m^-1, in the southeastern region of Mato Grosso. Thus, it is necessary to repeat the study to confirm the results obtained.