PJB-2024-7
EFFECTS OF NOVEL CARRIER-BASED FORMULATIONS ON WHEAT GROWTH, PHYSIOLOGY AND YIELD
Tamoor ul Hassan
Abstract
Sugarcane husk hold rich carbon sources and can be used as carrier for biofertilzer industry. Two formulations of carrier-based biofertilizers were made comprising consortium of plant growth promoting rhizobacteria (PGPR) Pseudomonas moraviensis and Bacillus cereus. Formulation-I comprises the consortium of Bacillus cereus and Pseudomonas moraviensis with maize straws powder and Formulation- II comprised same consortium and sugarcane husk as carrier materials. Pseudomonas moraviensis and Bacillus cereus were isolated from halophytic herb Cenchrus ciliaris (L) and maintained greater colony forming unit (cfu) in carriers after 40d of incubation. Phosphate solubilization potential and antifungal activity of PGPR was remarkable and used as bio-inoculant on wheat, grown in saline sodic soil of field at Soil Salinity Research Institute, Pindibhattian. Both formulations alleviated the adverse effects of salt stress by decreasing electrical conductivity (EC), sodium absorption ratio (SAR), regulate ion homeostasis by decreasing Na and Cl content, and improving K, P, N-NO3 and organic matter by 20- 40% in the wheat rhizosphere. There were 20% decreases in Na and 30-45% increase in K was found in wheat leaves over control. Formulations and consortium treatments increased sugar, proline and phytohormones (gibberellic acid (GA) indoleacetic acid (IAA), and abscisic acid (ABA)) content of leaves by 50-90 % over control plants. Antioxidants enzymes activities were significantly higher in consortium and formulation treatments. Formulation- B comprising sugarcane husk as carrier was more effective than formulation having maize straw as carrier.
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