Effect of plant growth promoting rizobacteria (pgpr) in habanero pepper growth (Capsicum chinense Jacq)

Abstract

Objective: To evaluate the plant growth promoting rhizobacteria (PGPR) effect on the growth and production of habanero pepper.

Design / methodology / approach: Twelve strains of PGPR were evaluated in seeds of the orange habanero chili pepper. The PGPR species were Rhizobium leguminosarum: (CP Méx 46), Pseudomonas spp: (P fluorescens, C2, A7, A9, A9m, Avm); Azospirillum, (Sp7, Sp 59, UAP 40, UAP154), plus one control treatment, giving a total of 13 treatments. The study variables were seedling emergence (EP), plant height (AP), incidence of whitefly (IMP), virotic plants (PV), days to flowering (DF) and fresh fruit yield (RTO). The experimental design was that of random blocks with four repetitions

Results: The seedlings emergence and height plant was favored by the Sp9 (84.16%) and A7 strains (73.44). The whiteflies number of was reduced with the of CP Mex 46 inoculation, while virosis incidence decreased in inoculated plants with SP9 (32.00%). The highest yield of fresh fruit was found in plants with AVM strain with 16636 kg ha ^-1

Findings / conclusions: The inoculation with PGPR effect is a function of the strain used and the study variable, growth stage and development stage of the habanero pepper plant.