Qualidade Fisiológica de Sementes de Arroz Irrigado beneficiadas em diferentes UBS na Planície Costeira Interna da Lagoa dos Patos

Abstract

The aim of this study is to evaluate the evolution of the physical and physiological quality of rice seeds throughout the processing process, analyzing the efficiency of the equipment used in 3 Seed Processing Units (UBS), of certified seed production, located in the region of the inner coastal plain of Lagoa dos Patos. We know that the seed has to be made in the field, starting with the choice of the area, providing good management and controlling the weres, pests and diseases, but we believe that the UBS has a very important role in the quality of the seed and this is the purpose of this study. Each unit with its equipment in its production line was analyzed. The cultivar Irga 424 RI was used in the three Units, the samples were made at the exit of each equipment, seedling emergency tests, germination, physical purity and determination of other contaminant species were performed. There was a gradual increase in purity and germination along the processing line in the 3 UBS, except in the determination of daninho rice, where equipment was not efficient.