EVALUATION OF SEED DRESSING FORMULATIONS OF POTENTIAL TRICHODERMA MUTANTS ON GROWTH AND YIELD ATTRIBUTING CHARACTERES OF CEREALS, PULSES AND VEGETABLES
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Date
2020
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Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.)
Abstract
Owing to its improve nutrient use efficiency, mycoparasitic and plant growth promoting ability, ability to produce diverse array of secondary metabolites, SAR against invading pathogen, Trichoderma spp. are one of the most preferred bio inocul-ant used in agriculture (Mukharjee et al., 2013, Lamdan et al., 2015, Salas Marina et al., 2015, Chagas et al., 2017). Trichoderma spp. interacts with plant through rhizosphre and rhizoplane colonization, and triggers morphologic changes in the roots (Contreras-Cornejo et al., 2009, 2015). Trichoderma-plant interaction modulates levels of the plant hormones or provide intermediate path for the synthesis of some plant hormones, beneficial for the plant (Guzman-Guzman et al., 2019) stimulating increased plant growth and vigor, and ultimately boosting crop yield (Salas Marina et al., 2015; Chagas et al., 2017). Successful commercially viable formulations based on protoplast fusant strain of T. afroharzianum and development of novel strains of Trichoderma using mutagenesis have been reported earlier (Mukharjee et al., 2019). Such report prompted us to evaluate the seed dressing formulation of four potential Trichoderma mutants for Plant growth and yield attributing characters of cereals, pulses and vegetables. Our present investigation indicate that seed bio-priming can be a preferred method of delivering the potential Trichoderma mutants to different crops and can be one of the successful strategy to scale up the microbial products at regional to global levels. Lowering dose of seed treatment followed by seed bio-priming proliferated Trichoderma on seed by many folds and stimulated significant plant growth in cereals, pulses and vegetables. Extensive field evaluation indicate that all the four Trichoderma mutants stimulated plant growth of chickpea and increased the yield by 20%. Potential Trichoderma mutants also stimulated increased antioxidant enzyme activity and total phenolic content (TPC) in chickpea and wheat.
Description
EVALUATION OF SEED DRESSING FORMULATIONS OF POTENTIAL TRICHODERMA MUTANTS ON GROWTH AND YIELD ATTRIBUTING CHARACTERES OF CEREALS, PULSES AND VEGETABLES