AGRONOMIC PERFORMANCE OF LINSEED AS A FUNCTION OF PLANT ARRANGEMENT

DESEMPENHO AGRONÔMICO DA LINHAÇA EM FUNÇÃO DO ARRANJO DA PLANTA

Resumo

The objective of this work was to understand the agronomic performance of flaxseed cultivated in different spacings between rows and plant density, identifying associations between traits for indirect selection. The experiment was carried out in the municipality of Augusto Pestana - RS, in the years 2020 and 2021, using a randomized block experimental design organized in a 6x3x2 three-factor scheme, with six sowing densities (30, 60, 90, 120, 150 and 180 plants per linear meter), three spacings between rows (0.18 m, 0.36 m, .0.54 m), and two crop seasons (2020 and 2021). Ten plants were measured in each plot, having evaluated phenotypic characteristics of plant height, height of insertion of the first capsule, number of basal branches, stem diameter, number of branches on the stem, number of main branches, number of capsules, mass of capsules, number of grains per plant, weight of 100 grains and weight of grains per plant. Grain yield is enhanced in row spacing of 18 cm with densities of 74 seeds per linear meter in crops with favorable conditions. In flaxseed, the number of capsules, number of grains and the mass of grains per plant exhibit a linear association with grain yield and can be used for indirect selection.