Vol. 6, Issue 5 (2018)
Studies of seed borne micoflora of mungbean and it’s effect on seed germination and seedling vigour index
Author(s): RM Dolas, SB Gawade and MC Kasture
Abstract: The present investigation was carried out on the seed borne mycoflora associated with the seeds of mung bean varieties and its individual effects on seed germination and seedling vigour index (In vitro). Similarly, different fungicides, bioagents and botanicals tested against different seed borne mycoflora and its positive effect on seed germination and seedling vigour index in mung bean were investigated. The seeds of varieties viz., BPMR-145, Utkarsh, Kopergaon, BM-2002-1, AKM-8802, DGGV–2, SML-668 and Vaibhav were collected from Pulses Improvement Project, Mahatma Phule Krishi Vidyapeeth, Rahuri, Dist. Ahmednagar and Oilseed Research Station, Jalgaon. Six seed borne fungi viz., Fusarium oxysporum, Macrophomina phaseolina, Curvularia lunata, Botrytis cinerea Aspergillus flavus and Aspergillus niger were found associated with seeds of mung bean varieties externally and two seed borne fungi viz., Fusarium oxysporum and Macrophomina phaseolina were found associated internally. All the isolated pathogens were found pathogenic to seeds of mung bean resulting into reduction in seed germination and seedling vigour index. The seed borne mycoflora viz., Fusarium oxysporum, Macrophomina phaseolina, Curvularia lunata, Aspergillus flavus and Aspergillus niger were found more damaging. The pathogen Macrophomina phaseolina showed lowest seed germination and seedling vigour index over control. The seed germination and seedling vigour index due to Macrophomina phaseolina was 38 per cent and 741.0, respectively as against 85 per cent and 1962.4, respectively in control. The reduction in seed germination and seedling vigour index due to Macrophomina phaseolina was 55.29 and 62.24 per cent, respectively over control. The pathogens viz., Fusarium oxysporum, Aspergillus flavus, Curvularia lunata, Aspergillus niger and Botrytis cinerea also showed reduced seed germination and seedling vigour index. The reduction in seed germination was 47.05, 41.17, 36.47, 35.29 and 25.88 per cent while reduction in seedling vigour index was 55.05, 49.80, 48.71, 40.28 and 37.93 per cent, respectively for Fusarium oxysporum, Aspergillus flavus, Curvularia lunata, Aspergillus niger and Botrytis cinerea over control.
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How to cite this article:
RM Dolas, SB Gawade, MC Kasture. Studies of seed borne micoflora of mungbean and it’s effect on seed germination and seedling vigour index. Int J Chem Stud 2018;6(5):802-806.
