Storage Duration of Bacillus spp . Consortium Formula for Controlling Bacterial Wilt Disease and Increasing Growth and Production of Chile Pepper
DOI:
https://doi.org/10.33866/phytopathol.037.02.1265Keywords:
Bacillus spp ., chile, formulation, R. syzigii subsp. Indonesia, solid waste, viabilityAbstract
Bacterial wilt disease caused by Ralstonia syzigii subsp. indonesiensis is an important disease of chili plants that can reduce yields up to 90%. Utilization of Bacillus spp. consortium in the form of a formula is an alternative control that is cheap and environmentally friendly. The study aimed to obtain a better storage period of Bacillus spp. consortium solid waste formula for the control of R. syzygii subsp. indonesiensis and increase the growth and yield of chili plants. The study was structured in to two distinct phases, namely: 1). Formulation of solid waste-based carrier for Bacillus spp. consortium. 2). The CFU count and biological control efficacy of the Bacillus spp. consortium in the solid waste carrier were assessed at different storage intervals against R. syzigii subsp. indonesiensis. Phase 2 of the study was conducted using CRD (completely randomized design) consisting of 19 treatments and 4 replications. The formulated solid waste based Bacillus spp. consortium was applied to chili seeds and seedlings at the time of sowing and transplanting respectively. Inoculation with R. syzygii subsp. indonesiensis was performed after 35 days of planting. The observed variables include the viability of solid waste formula of Bacillus spp. consortium, disease development, seedling and plant growth and yield of chili plants. The results showed that 9 solid formulas of Bacillus spp. consortium that has the potential to control Ralstonia syzigii subsp. indonesiensis disease are Bran + Sugarcane Dregs (4 weeks’ storage), Bran + Rice Straw (4 weeks’ storage), Bran + Rice Straw (6 weeks storage), Bran + Sugarcane Dregs + Rice Straw (4 weeks storage). Additionally, some formulations have potential the potential to increase the growth and yield of chili plants are Bran + Sugarcane Dregs (stored 4 weeks), Bran + Sugarcane Dregs (stored 6 weeks), Bran + Rice Straw stored (4 weeks), Bran + Rice Straw (stored 6 weeks), Bran + Rice Straw (stored 8 weeks), Sugarcane Dregs + Rice Straw (stored 4 weeks), Sugarcane Dregs + Rice Straw (stored 8 weeks).References
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