Native isolates of Trichoderma as bio-suppressants against sheath blight and stem rot pathogens of rice

Abstract Background Species belonging to the genus Trichoderma are considered as one of most potential biocontrol agents which can be readily collected from soil and found effective against various fungal bacterial diseases. In rice-growing areas, major pathogens affecting rice production include Rhizoctonia solani causing sheath blight Sclerotium oryzae stem rot disease rice. Due lack resistant varieties detrimental effects chemicals, gives a good opportunity manage diseases efficiently in sustainable manner. Main body spp. native rhizosphere were examined for their antagonistic efficiency supress two soil-borne pathogens, viz., R. S. . Morphological, biochemical molecular characterisation isolates led identification species T. asperellum The positive IAA release phosphate solubilisation screened vitro vivo pots under glass house conditions. Regression analysis indicated correlation between amount chlamydospores produced by pathogens. Exposure external stimuli, light, injury nitrogen sources culture media triggered increased conidiation isolates. Among four studied, IIRRCK1 (TAIK-1) was improving plant growth highly Sorghum grain suitable among different organic substrates studied provide better viability TAIK-1 improved seed treatment application. External stimuli form near UV blue mechanical colonies source added help faster Conclusion Strain showed strong competitive activities addition with promoting healthy development plants. This safe alternative chemical management fields long-term scenario.