Trichoderma improves photosynthetic features of rajmash (Phaseolus vulgaris C.V. HUR-137) in Varanasi region of Uttar Pradesh

Plants of red kidney bean (Phaseolus vulgaris) were treated with different grades of recommended dose of fertilizer along with biopriming with Trichoderma harzianum. The treatment along with the inorganic fertilizer treatment was applied as an attempt to enhance the yield through the microbial agent Trichoderma. Treatment of red kidney bean seeds were treated with the Trichoderma isolates using powder (talc) formulation to promote growth and development of the bean plants in greenhouse conditions. Among the treatments the plants treated with full dose of fertilizer without any bio-treatments was found the best as per growth and development but the bean plants treated with inorganic fertilizers at 90% dose combined with biopriming was comparable and suggests that the use of bio-agents can be used significantly to improve the leaf area and chlorophyll content of the plant and ultimately the growth of the crops which is reduced as a part of the treatments. Also, the bean plants treated solely with the bio-agent represented a very good rhizospheric growth without the use of any kind of inorganic inputs. The treatments bioprimed with Trichoderma showed a good growth despite a lower dose of nutrient applied.