The effect of seed treatment using plant growth promoter rhizobacteria (PGPR) on the germination process of chili (Capsicum annum L.)

Abstract

Chili is one of the leading horticultural commodities that has high economic value and still requires serious handling, especially in increase production both in quality and quantity.The research was conducted at the Laboratory of Seed Science and Technology, Department of Agrotechnology, Faculty of Agriculture, Syiah Kuala Darussalam University, Banda Aceh. The research was conducted from April 2023 to June 2023.The design used in this study was a 7 x 2 Factorial Completely Randomized Design (CRD) with 3 replications, so there were 14 treatment combinations and 42 experimental units, each treatment consisting of 3 plants so that 126 plants were obtained. The results showed that the effect of rhizobacterial treatment on the germination process had a significantly increased effect on maximum growth potential, germination, vigor index and growth simultaneity compared to no treatment (control). Almost all rhizobacteria can increase the rate of seed germination. At the variable maximum growth potential, germination capacity, vigor index and growth simultaneity, there are two isolates that have the potential to be candidates for plant growth promoting rhizobacteria agents (PGPR) and these isolates, namely AD 7/1 and LABA F1 varieties significantly provide an increase in seed vigor and viability.