Nano Rice Husk Ash as Bulb Coating in Increasing Storability of Shallot Seed (Allium cepa var. aggregatum group)

Abstract

Shallot seed generally used form bulb that stored for short period, and it led to decrease the seed quality. Application of nano rice husk as that contain high silica could utilize as seed coating to minimize the decrease in seed quality. The experiment was carried out for evaluating the usage of nano rice husk ash as bulb coating in increasing stroagbility of shallot seed. Concentration of nano rice husk ash with concentration of 0%, 0.1%, 0.2%, 0.3% and 0.4% were test in this research. Application of rice husk ash as shallot seed coating could preserve the quality of seed. Moreover, the concentration of 0.3 and 0.4 could maintain water content, weight loss, firmness, bulb diameter, number of bulb loss, vigor index and germination rate in optimum value.