Mango malformation: seasonal variation in Fusarium moniliforme population in relation to environmental factors, mangiferin content and flushings in Mangifera indica.
Chakarbarti D. K., Kumar R., Ali S.
Author Affiliation: Department of Horticulture and Technology, Kumarganj, Faizabad - 224 229, Uttar Pradesh, India.
Indian Journal of Plant Protection 25 : 146-148
Abstract : Field experiments were conducted in Uttar Pradesh, India, on 5-year-old plants of mango (cv. Baramasi) to determine if there was any correlation between seasonal fluctuation of F. moniliforme [Gibberella fujikuroi] inoculum density on the host surface and the anti-fusarial metabolite, mangiferin, content in the host tissues. Although the correlation between fungal density, maximum temperature, relative humidity and mangiferin content were not significant, the results indicated that the fungal population and mangiferin content of shoots were negatively correlated (r=-0.325), the inoculum density was positively correlated with relative humidity (r=0.304) but negatively related to maximum temperature (r=-0.141). It is concluded that environmental parameters and mangiferin content affect the population dynamics of G. fujikuroi and subsequently cause seasonal variation in disease incidence.