Beneficiamento de sementes de nabo forrageiro

Abstract

Seed Seed processing is a subsequent step for production which aims to improve lot quality, making seeds appropriate for commercialization. For species whose seeds have differences in density due to non-uniform maturation or are very susceptible to mechanical damage, such as the fodder radish, the understanding of the processing effects on the physiological potential of the lots is fundamental. Two lots of the cultivar CATI Al-1000, 2006 harvest, were submitted to processing by air screen separator and gravity table (high, intermediate high, intermediate low and low discharge) and their physiological and physical aspects evaluated. The following were determined: moisture content, purity, weight per thousand seeds, germination, first germination count, germination speed index, initial stand, emergence, emergence speed index, dry matter of seedling aerial part and health quality. It was concluded that to satisfy the minimum standards of purity and germination for commercialization of certified fodder radish seeds, lots must be processed by air screen separator and gravity table. The air screens machine and air and gravity table are efficient for separating the fodder radish seed lots into fractions with different physical and physiological quality. The lower density fodder radish seeds have lower physiological quality.