ISHS Acta Horticulturae 231: II International Symposium on Mango
STUDIES ON MANGO MALFORMATION IN THE MANGO CLONE, CHIRATPUDI |
| Authors: | G.C. Das, D.P. Rao, P.C. Lenka |
| Abstract:
One of the serious maladies in mango is the malformation disease which, of late, is assuming a very serious proportion threatening the mango industry in some sections of the country. Since the malformation is noticed in both the floral and vegetative parts, these are accordingly named as floral and vegetative malformation respectively. There have been very conflicting reports regarding the cause of the disease. Sattar (1946) attributed the disease due to a virus. Sammanwar and Raychoudhury (1968) held the view that it was fungus in nature and the causal agent was Fusarium moniliformas, subglutinans. Narasimhan (1954) viewed the malady as due to a species of eriophyces mite (Aceria mangiferae). Lynch and Ruahle (1940) ascribed the disease to zinc deficiency. Further, it has also been assumed that the disease could be controlled by application of a growth regulator like NAA (Mazumdar et al, 1970) as they realized that there is auxin imbalance in the diseased shoots. Even application of urea as foliar spray has also been suggested by Khan and Hamid (1958) as a remedial measure. In Orissa, though mango malformation is not very much prevalent, yet some susceptible clones like Chiratpudi is reported to suffer from this disease. The clone Chiratpudi has a peculiar habit of producing off season flowers which also suffered from floral malformation very frequently. In view of this, investigations on the cause of mango malformation, biochemical changes that occurs as a consequence of the disease attack and different control measures like application of growth regulators, urea, acaricide and fungicide were undertaken in the mango clone Chiratpudi. | |
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