Effect of Paraffin Treatment on Walnut Grafts under Bench Grafting

S. M. PAUNOVIC1, R. MILETIC1, M. MITROVIC2, D. JANKOVIC3 and S. JANKOVIC3
1 Fruit Research Institute, 32000 Cacak, Serbia
2 School of Professional Studies in Agriculture, 15000 Sabac, Serbia
3 Faculty of Agriculture, 38210 Lesak, Serbia

Abstract

PAUNOVIC, S. M., R. MILETIC, M. MITROVIC, D. JANKOVIC and S. JANKOVIC, 2013. Effect of paraffin treatment on walnut grafts under bench grafting. Bulg. J. Agric. Sci., 19: 550-556

 

The effect of paraffin on the onset of bud break, onset of callus formation and graft-take percentage in walnut under bench grafting using the whip-and-tongue method was evaluated in this study. The experiment involved the following cultivars: Šeinovo, Ovčar, G-286, G-139 and Elit. Two treatments were employed: Treatment 1 – grafting involving immersion of the rootstock-scion union into paraffin, and Treatment 2 – grafting without immersion of the rootstock-scion union into paraffin. Sawdust temperature in the treatment with paraffin was 0.5-1оС higher than that in the treatment without paraffin. This induced earlier bud break, earlier callus formation and higher graft-take percentage in walnut.

Key words: walnut, cultivar, grafting, paraffin

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