Goel, ReetaJoshi, Anurag2019-07-152019-07-152019-03http://krishikosh.egranth.ac.in/handle/1/5810114452To meet the requirement of increasing population, current agronomical practices are mainly focused on huge production of pulse crops in more sustainable manner. However, rigorous cropping patterns, rampant application of chemical fertilizers, and other environmental factors resulted into reduced crop productivity and adversely affect the soil fertility. Using plant growth promoting bioinoculants is a prominent and environment friendly alternative strategy for improved growth of plants. Therefore, the present study was performed for evaluating the impact of previously characterized Pseudomonas helmanticensis AB 04 on seedling germination of four native pulses viz. Pea (Pisum sativum L. var. Arkel), Mungbean (Vigna radiata L. var. Pant Mung 4), Urad (Vigna mungo, L. var. PU 31) and Chickpea (Cicer arietrinum L. var. PG-186), and further promotional effect on the seed vigour of selected crop. Outcomes of the biochemical tests revealed that the bacterial strain showed variability in utilizing different carbohydrate sources, and as well exhibited variant patterns of sensitivity and resistance against antibiotics. AB-04 strain showed improvement in seed germination percent for all the crops. The highest germination percent was reported for Urad (Vigna mungo, L. var. PU 31) upon bacterial treatment when compared with other three pulses and therefore, was selected for further analysis. The study also revealed the positive influence of AB 04 strain on seedling vigour of Urad (Vigna mungo L. var. PU 31). Therefore, this study confers an insight on exploring P. helmanticensis AB 04 strain as effective bioinoculant for native pulse crops under sustainable agricultural plans.ennullBiochemical and functional characterization of psychrotolerant Pseudomonas helmanticensis AB-04Thesis