Pelapisan Benih dengan Bacillus subtilis AB89 dan Tokoferol untuk Mempertahankan Viabilitas Benih Padi Hibrida Selama Penyimpanan

Abstract

This research aims to evaluate the effect of seed coating by Bacillus subtilis AB89 and Tocopherol on viability of hybrid rice seeds during storage. Experimental design is used a Nested Design randomized complete. The main plot is period of seed storage consisting of six standards are: P0 = 0 weeks, P1 = 3 weeks, 6 weeks = P2, P3 = 9 weeks, 12 weeks = P4, and P5 = 15 weeks with seed coating as a subplot consisting of three levels, namely: C0 = control (without coating), C1 = polymer + isolates Bacillus subtilis AB89, C2 = polymer tocopherol + 500 ppm . Seeds used in this research is hybrid rice varieties DG-1, SL-8, and Intani2. Seed moisture content fluctuated during storage, but the seed coating treatment showed a lower water content values than the control. The results showed that treatment of seed coating and without coating capable maintaining viability of hybrid rice seed varieties both DG-1, SL-8 and Intani 2 until 15 weeks period of seed storage . Coating by Bacillus subtilis AB89 on DG-1 varieties increased the speed of grown, cumulative germination percentage and dry weight normal seedling until 15 weeks period of seed storage. Coating by tocopherol 500 ppm on SL-8 varieties has the highest value of the maximum growth potential and increased the highest maximum growth potential on Intani 2 varieties.