Abstract
ABSTRACT Many strains of the Pseudomonas fluorescens have been characterized as plant growth promoting rhizobacteria (PGPR) and they enhance the growth and yield of economical important paddy crops. The effect of bio-priming on paddy paddy seed growth was assessed at Crop Research Centre S.V.B.P.A.&T Meerut India by studying the effect of fluorescent Pseudomonas strains for their growth stimulatory effect on paddy plants in Randomized Block Design (RBD) in pot conditions. A total of nineteen isolates of the rhizobacteria Pseudomonas fluorescens were selected from the fields of paddy, wheat, mustard, chilli, sorghum and pearlmillet and these strains were used as bio-priming agents for paddy paddy seed. The highest increase in shoot dry weight was seen in the isolate Pseudomonas fluorescens SVP 12 followed by SVP 11 and SVP 13 with 93.33, 86.67 and 80 per cent enhancement in shoot dry weight. All isolates of P. fluorecens, when applied as seed biopriming of paddy paddy seed, had some stimulatory effect on growth and physiological parameters of treated plants indicating that such strains could be use for enhancing the yield and quality of paddy paddy crop.
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