Effectiveness test of chili rhizosphere bacteria on viability and vigor of two varieties of large chili seeds infected by Colletotrichum sp.

Uji efektivitas bakteri rizosfer cabai terhadap viabilitas dan vigor pada dua varietas benih cabai besar yang diinfeksi Colletotrichum sp.

Abstract

Infection of Colletotrichum sp. in chili seeds can reduce seed viability and vigor. This study aimed to evaluate the effectiveness of rhizosphere bacteria biopriming and determine the optimal soaking duration in two chili varieties. A factorial Completely Randomized Design was used with factors of varieties (Pilar F1 and Tanjung-2) and soaking duration (0, 30, 60, 120 minutes) with four replications. Parameters observed included maximum growth potential, germination, vigor index, and growth rate. Results showed that soaking duration significantly affected all parameters. A 60-minute soaking treatment gave the best results in improving seed viability and vigor. Pilar F1 performed better than Tanjung-2. Biopriming also improved seedling morphology and reduced pathogen effects. Biopriming with rhizosphere bacteria for 60 minutes is effective in enhancing chili seed quality.