ECO-FRIENDLY MANAGEMENT OF BLACK MOULD OF GARLIC

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dc.contributor.advisorSHARMA, MONICA
dc.contributor.authorKATOCH, NAVEEN
dc.date.accessioned2020-11-23T09:09:11Z
dc.date.available2020-11-23T09:09:11Z
dc.date.issued2020-11-19
dc.description.abstractBlack mould of garlic, caused by Aspergillus niger is one of the most important post-harvest diseases of garlic. In the present studies, pathogen causing black mould disease of garlic was isolated and identified as Aspergillus niger on the basis of morphological and cultural characteristics. Among four biocontrol agents, maximum mycelia inhibition of 69.99 per cent was observed with Trichoderma koningii followed by Trichoderma viride with 67.76 per cent mycelial inhibition in dual culture assay. Pre- and post-inoculation dip treatment of garlic bulb with Trichoderma koningii was found to be effective with minimum disease incidence and disease index after 7th and 14th day of inoculation. Among aqueous extracts, maximum mycelia inhibition of 33.34 per cent was observed using extract of Ocimum sanctum at 50 per cent concentration. While in cow urine extracts, maximum mycelia inhibition of 99.99 per cent was observed by using extract of Melia azedarach and cow urine alone at 10 and 20 per cent concentrations, respectively. Pre- and post-inoculation dip treatment of garlic bulb with aqueous extract of Melia azedarach and Ocimum sanctum and cow urine alone and cow urine extract of Melia azedarach were found to be effective in reducing disease incidence and disease index after 7th and 14th day of inoculation. Aqueous bio-pesticides and biocontrol agents were compatible with each other whereas cow urine based bio-pesticides and biocontrol agents were completely incompatible with each other. Pre- and post-inoculation dip treatment of garlic bulb with Trichoderma viride + aqueous Melia azedarach resulted in minimum disease incidence and disease index after 7th and 14th day of inoculation. Among different abiotic inducers, foliar sprays of potassium dihydrogen phosphate (100 mM), potassium hydroxide at (300 mM) resulted in minimum disease incidence upto 12.41 and 21.50 per cent and disease index upto 12.41 and 23.15 after 7th and 14th day of inoculation, respectively with maximum yield of 2.00 and 1.86 kg/plot with potassium dihydrogen phosphate (100 mM) and potassium dihydrogen phosphate (50 mM), respectively.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810155569
dc.keywordsGARLIC, BLACK MOULD, Aspergillus niger, ECO-FRIENDLY MANAGEMENTen_US
dc.language.isoEnglishen_US
dc.pages79+xiiien_US
dc.publisherCOLLEGE OF HORTICULTURE AND FORESTRY, DR Y S P UHF, NERI, HAMIRPURen_US
dc.subPlant Pathologyen_US
dc.themeECO-FRIENDLY MANAGEMENT OF BLACK MOULD OF GARLICen_US
dc.these.typeM.Scen_US
dc.titleECO-FRIENDLY MANAGEMENT OF BLACK MOULD OF GARLICen_US
dc.typeThesisen_US
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MONICA SHARMA; NAVEEN KATOCH
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