Impact of pre-harvest foliar application of fungicides on seed associated with mycoflora and sowing qualities of soybean seeds Kurmi Swarna, Bhale M.S., Gupta Pramod Kumar*, Mishra Shubham Department of Plant Pathology, College of Agriculture, JNKVV, Jabalpur-482004, M.P., India *Correspondence email: pkgtaxo@gmail.com
Online published on 28 November, 2023. Abstract Due to its high-quality protein (45-47%), edible oil (18-20%), and usefulness as a nutraceutical and medicinal, soybean is favored on a global scale. Several biotic risks have emerged over the last years due to shifting weather patterns and extensive farming practices, making it more challenging to grow crops economically. In an investigation, eight mycoflora, Colletotrichum dematium, Rhizoctonia solani, Alternaria alternata, Curvularia lunata, Aspergillus flavus, Aspergillus niger, Myrothecium roridum, Fusarium oxysporum, and Rhizopus spp. have been found associated with discolored pods in different varieties. In the study new-generation fungicides were used to manage pod blight disease in field and after that seeds were analyzed for the influence on germination, emergence, and vigour of seeds obtained from fungicide-treated soybean plants by using standard methods suggested by ISTA for a particular analysis. The incidence of the disease was higher at the R5 and R7 stages. Seed treatment and subsequent foliage application of fungicides were attempted at R3, R5, and R7 stages. Two combinations of seed treatment and three combinations for foliage applications were made. Untreated seeds and plants served as checks in a randomized block design. Seeds from fungicide-treated plants exhibited higher seed germination (84%) as compared to seeds from untreated plants (73%); higher seed emergence (82%) as compared to check(71%) and better vigor (1045.8) as compared to check (714.0) with the lesser association of mycoflora (2.0%) as compared to check (14.0%). It is concluded that three applications of Pyroclostrobin + Thiophenate M @ 0.2%applied at R3, R5, and R7 stage was the most promising approach with reference to higher seed quality characters and lesser association of mycoflora. Top Keywords Seedborne mycoflora, Soybean, Pod blight, Colletotrichum dematium. Top |