Effect of plant growth promoting rhizobacteria (PGPR) on growth and yield of bitter gourd.
Loading...
Date
2012-01
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
A field study was conducted to determine the effect of plant growth promoting
rhizobacteria (PGPR) on growth and yield of bitter gourd. Four PGPR strains (Azospirillum,
Phosphorous solubilising bacteria, Pseudomonas flourescens and Bacillus subtilis), one
commercial organic product (Aishwarya) and non inoculated control were used. The study
revealed that seeds inoculated with Azospirillum (basal @ 5 kg ha-1 + 40 days after sowing
(DAS) @ 5 kg ha-1) recorded early germination (6.48 days). The maximum vine length (4.42
m) was recorded in basal @ 2 l/plant application of both Bacillus subtilis and Pseudomonas
flourescens @ 2.5 kg ha-1. Number of primary branches was maximum (4.80) in plants applied
with phosphorous solubilising bacteria (PSB) as basal @ 5 kg/ha and 40 DAS @ 5 kg/ha. Tap
root length (23.57 cm) and secondary root length (39.88 cm) were highest in the plants supplied
with Azospirillum (basal @ 5 kg ha-1 + 40 DAS @ 5 kg ha-1) where as, dry root weight (4.64 g)
was more in case of double application of Bacillus subtilis basal @ 2 l plant -1 + 40 DAS @ 2 l
plant -1. Two time application of Bacillus subtilis basal + 40 DAS @ 2 l plant -1 produced the
maximum yield plant -1 and yield plot -1 (2.72 kg and 16.33 kg respectively).
Description
Keywords
bitter gourd, PGPR, plant growth, yield
Citation
Kumar K S Naveen, Sowmyamala B V, Kumar P G Sadhan, Vasudev P N, Kumar R Vasantha, Nagaraj H T. Effect of plant growth promoting rhizobacteria (PGPR) on growth and yield of bitter gourd. International Journal of Applied Biology and Pharmaceutical Technology. 2012 Jan-Mar; 3(1): 1-7.