EFFECT OF GRAFTING TECHNIQUES AND CURING PERIOD OF SCION IN JACKFRUIT (Artocarpus heterophyllus Lam.)

H.L. PRIYANKA¹, G.M. VINAY²*, KULAPATI HIPPARAGI³, DEEPAK G. NAYAN⁴, N.P. MAMATHA^5
1Department of Fruit Science, College of Horticulture, University of Horticultural Sciences, GKVK, Bengaluru, 560 065
²Department of Fruit Science, College of Horticulture, University of Horticultural Sciences, GKVK, Bengaluru, 560 065
³Department of Fruit Science, College of Horticulture, University of Horticultural Sciences, Bagalkot, 587104, Karnataka
⁴ICAR - Division of Fruit Crops, Indian Agricultural Research Institute, New Delhi, 110012
⁵Department of Fruit Science, College of Horticulture, Arabhavi, 591310, Karnataka, India
* Corresponding Author : vingeegmvegs@gmail.com

Received : 15-12-2016     Accepted : 10-01-2017     Published : 18-01-2017
Volume : 9     Issue : 3       Pages : 3688 - 3689
Int J Agr Sci 9.3 (2017):3688-3689

Keywords : Grafting, Curing, Scion, Epicotyl, Mortality
Conflict of Interest : None declared
Acknowledgements/Funding : I thank Dr. Kulapati Hipparagi and Dr. D Thippesh for their support in conducting the research. I acknowledge my sincere thanks to Nayan Deepak G for providing some valuable advice on the manuscript
Author Contribution : None declared

Investigations consisted of two trials viz., effect of grafting methods and curing period of scion on success of graft union and growth of grafts and effect of age of rootstock on success and growth of softwood grafting. Among the three grafting methods under study, epicotyl grafting recorded the highest per cent of graft success (48.08%) as compared to softwood grafting (35.55%) and approach grafting (9.17%). With regard to scion curing, 10 days old cured scion registered significantly the maximum per cent of graft success (37.75%). The interaction effects were significant with the highest success recorded in epicotyl grafting with ten days old cured scion (ET2) (64.00%).The minimum number (17.99) of days taken for bud sprouting was in case of epicotyl grafting, among the various methods tried. Whereas, among the interaction effect, least number of days (17.50) was recorded with epicotyl grafting with ten days old cured scion. Growth parameters like number of leaves, number of buds, number of branches, length and girth of shoot were the maximum in scions cured for ten days. Among the grafting methods and interaction effect, number of leaves, number of branches and length of shoot were maximum in epicotyl grafting with scion cured for ten days. Vigour of grafts expressed in terms of number of buds and girth of shoot were maximum in softwood grafting with ten days old cured scion. The least mortality (32.20%) was recorded in epicotyl grafting with ten days old cured scion.