ISOLATION AND CHARACTERIZATION OF PLANT
RHIZOPLANE-RHIZOSPHERE PROBIOTICS AND THEIR EFFECT ON GROWTH AND YIELD OF
CHILLI
Authors: M M Hossain*,
K C Das, S Yesmin, S Shahriar and M J Uddin
*Corresponding author; E-mail: soilsaudhaka@yahoo.com
Abstract
Plant probiotics or
plant growth promoting rhizobacteria (PGPR) can enhance the growth and
productivity by exerting beneficial effects through direct and indirect
mechanisms. In this study, 15 bacteria were isolated from chilli Rhizoplane and
rhizosphere soils (collected from farmer’s field of Tangail district) and their
morphological, biochemical and plant growth promoting characteristics were
elucidated. Plant growth and yield attributes increased significantly when the
15 rhizoplane-rhizospheric isolates were applied to a local chilli cultivar ‘Dhanimorich’
in pots. On the basis of their performance in the pot experiment, three
rhizobacteria (C2, C25, and C32) were selected for further study in field. Remarkable increase in growth characteristics
such as total number of fruits, fruit-weight, and fruit yield was recorded in
plants with combined inoculation under field conditions. The results clearly
demonstrate the rhizocompetence and plant growth enhancing efficacy of these
strains. It can be surmised that the isolated strains have strong potential to
be successful biofertilizers.
Keywords: Chilli, Plant
growth promoting Rhizobacteria, Rhizosphere, Rhizoplane, and Yield.
Download PDF: Click here
Return Volume: Journal of Experimental Biosciences 6(2): July 2015
