Características morfológicas, agronômicas e qualidade fisiológica de sementes de acessos de chia (Salvia hispanica L.) cultivados no sul do Rio Grande do Sul

Abstract

Chia is a species that has recently been cultivated in Brazil, and can become a large crop of the nutritional characteristics of its seeds. Therefore, it is of fundamental importance to know the agronomic characteristics of the plants and the quality of the seeds produced by their culture. Aiming at generating information on the agronomic characteristics of the plants and the quality of the seeds produced in the southern region of Rio Grande do Sul, this work aimed to describe as agronomic and morphological characteristics, yield components and seed quality from different accessions of chia produced in the South Do Brasil The experiment was conducted in the experimental area belonging to the Post Graduate Program in Seed Science and Technology, Federal University of Pelotas (UFPel). Seeds of 20 accessions of chia, sown in the agricultural year of 2015/2016, were used. For agronomic characterization and yield components, number of plants per plant, number of plants per plant, number of plants per plant, number of plants per plant, number of plants per plant, number of plants per plant Seeds and productivity per plant. To determine the physiological quality of the seeds produced by the different accessions, the same experiment was used and evaluated for germination, first germination count, shoot length, root length and total seedling length. The experimental design was used for randomized blocks, with four replications. Data were submitted to analysis of variance and measured by the Duncan test (p <0.05). (Type, flowers, petals, anthers, etc.) Corolla, bracts, stylet, ovary). It was verified that a region of Rio Grande do Sul presents promising characteristics for the cultivation of chia, being the access to agronomic and productive quality characteristics. The accessions under conditions of quality of seed production, standing out the accesses 6 and 7, which originated seeds with greater germination and vigor, as measured by the seedling performance tests. The morphological characteristics indicate that all accessions belong to the species Salvia hispanica L..