Organic system and reflections on white oat grain productivity components

Abstract

The objective of the study was to evidence efficient management strategies in order to maximize the organic cultivation system promotes a new dynamic in the behavior of white oat genotypes, where it is necessary to evidence genotypes with superior performance. The study aimed to highlight the productive performance and genetic diversity of white oat genotypes in an organic system. The experiment was carried out in the municipality of Augusto Pestana - RS, in the 2021 crop year. The experimental design used was randomized blocks with four treatments arranged in five replications. The treatments correspond to the cultivars IPR Artemis, URS Taura, URS Corona and URS Brava. It is observed that there is a possibility of indirect selection of productive genotypes through the mass of grains per panicle and number of grains per panicle. Brava and Taura are the most divergent genotypes. Through the analysis of the white oat genotypes, it is highlighted that it is possible to promote the proper positioning of the genotypes in the organic system. In addition, the existence of genetic divergence between the genotypes is evidenced. The components that determined the productivity of white oat cultivars in organic system were number of plants per square meter, number and grain weight per plant. The cultivar IPR Artemis and URS Taura showed similarity for plant height and height of panicle insertion, tillering and grain yield, URS Brava and URS Corona are similar in terms of the number of grains per plant. IPR Artemis is recommended for grain yield in an organic system.