Análise da qualidade física, fisiológica e sanitária de sementes crioulas de arroz (Oryza sativa L.) do estado do Maranhão

Abstract

Maranhão is one of the largest rice producers. In this way, it is essential that there are alternatives to guarantee its integrity during production. Creole seeds maintain their characteristics and genetic variability, essential requirements for the genetic preservation of varieties and success in crops, for this, they must beof good quality. The physical, physiological and sanitary quality of the seeds are parameters used to measure the viability of commercialization. Thus, the objective of this work was to analyze the physical, physiological and sanitary quality of native seeds. The physical quality was evaluated through the purity analysis, the test of a thousand seeds; the physiological quality evaluated through the germination test, the emergence test; and sanitary quality through the Blotter Test. The Baixinho and Buriti varieties showed the best results in physical quality analyses. For the physiological analyses, the Baixinho and Edinho varieties had the best germination speed indexes; in the analyzes of sanitary quality, the varieties Edinho and Vermelhão presented the highest percentages of healthy seeds, and the fungi with the highest incidence were of the genus Aspergillus