Efeito do impacto nas regiões do hilo e oposto ao hilo sobre a perda de qualidade de sementes de feijão durante o armazenamento.

Abstract

The objective of this work was to evaluate the immediate and latent effects of mechanical damages on physiological quality of bean seed (Phaseolus vulgares L.), for two initial moisture contents (25,1% and 33,4% w.b.), two final moisture contents (11% and 13% w.b.), two impact velocities (10m.s-1 and 16,5 m.s-1), and two impact positions (hilo and opposite to hilo). The seed quality was evaluated by standard germination test (STG), first counting of the STG, and tetrazolium test. The results showed that the seed damage susceptibility due to mechanical impact is a function of impact velocity, and depends of initial moisture contents and storage period. It was concluded that the storage period increased the o potential for the seed quality decrease after they were submitted to impact.