Effects of Rhizobacteria on Agronomic Traits of Two Gossypium hirsutum Cotton Varieties
Аннотация
Background and Objective: Stimulation of plant growth by rhizobacteria is a part of agricultural practice. Its enhancement leads to significant improvement in plant biology. In this study, we studied the effect of a mixture of salt-tolerant rhizobacteria containing strains KY041889, KY041694, KY041978 and KY041979 on the growth of two cotton varieties: Porloq-4 and Ravnaq-1. Materials and Methods: Experimental plants were grown in three different places in a plot and their agronomic traits, as well as fibre traits, were compared following the seed treatment with bacterial strains. Results: Indicators such as plant height, number of sympodia, buds and bolls and seed weight significantly improved after treatment. Bacterial treatment accelerated plant germination and flowering. No negative effects were determined on fibre quality in both varieties. Enhancement was defined in seed weight following the treatment with rhizobacteria but not in the total weight of fibre. Conclusion: Isolated rhizobacteria were found to stimulate plant growth which was explained by enhanced levels of agronomic traits such as several buds, flowers, bolls and sympodia.