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Volume 8
Journal of Biotechnology & Biomaterials
ISSN: 2155-952X
Adv.Biotech 2018
November 15-17, 2018
November 15-17, 2018 | Berlin, Germany
4
th
International Conference on
Advances in Biotechnology and Bioscience
Integrated effect of plant growth promoting rhizobacteria, phosphate solubilizing bacteria and
chemical fertilizers on growth of maize
Zahid Abbas
Nanjing Agricultural University, China
I
ntegrated effect of PGPR and PSB along with chemical fertilizers has great significance for the improvement of soil fertility
as well as to increase the plant growth and its biomass. The present study was conducted in order to test the effect of PGPR
and PSB along with recommended doses of chemical fertilizer to evaluate the performance of different plant parameters under
various chemical and biological treatments. The bacterial strains were isolated from root rhizosphere of maize II, SF and WC
was characterized on the basis of their morphological, physiological and biochemical traits. The shape, size and structure of
isolates were determined through microscopic analysis. The selected PGPR isolates produced reasonable quantity of IAA
(ranging 0.11-0.83 μg/ml). The PSB strain showed highest solubilization index (0.88%). The co-inoculation of PGPR and PSB
with 25% less N and recommended P and K fertilizers showed maximum plant height (88.7 cm) at vegetative stage, chlorophyll
contents (50.1 mg/g), leaves/plant (12.7) and root dry biomass (19.93 g). While the maximum plant heights at maturity (114.5
cm) shoot dry biomass (31.2 g), root length (8.8 cm) were recorded on PGPR, PSB and recommended NPK. The highest plant
phosphorous contents (0.29) were observed in treatment having the combination of Iple Iple (II) + PSB + recommended K +
¾ N + ¾ P. The PGPR, PSB and chemical fertilizer have showed very promising results on different parameters and vigorous
growth of maize plants.
2017201091@njau.edu.cnJ Biotechnol Biomater 2018, Volume 8
DOI: 10.4172/2155-952X-C6-104