ISHS Acta Horticulturae 291: III International Mango Symposium
TREE VIGOUR CONTROL IN MANGO |
| Author: | V.J. Kulkarni |
| Abstract:
Three approaches to tree vigour control in mango, i.e., genetic, rootstock/interstock and chemical regulation are discussed. Existing dwarf cultivars and hybrids suffer from some demerits and have failed to replace the commercial cultivars in the market. Grafts of cvs Banganapalli and Dashehari were retarded on clonal rootstocks (rooted layers) and interstocks of a dwarf cv Mahmooda Vikarabad. Grafts on seedling rootstocks were vigorous, attained larger canopy and commenced yielding earlier than grafts on dwarfing rootstock. Soil application of paclobutrazol effectively controlled tree vigour of young trees of commercial cvs Alphonso, Banganapalli and Dashehari on 'seedling' rootstock, induced profuse early flowering and early fruit maturity. Post harvest application to the soil at the rate of 5 to 7.5 g/tree was found to give the desired results in 5 to 7 year old trees. The chemical approach towards tree vigour control appears to be ideal on account of its reliability, wider applicability and suitability for the high density planting system which aims at an initial rapid growth followed by retardation of vegetative growth and precoecious, heavy fruiting. | |
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