Effect of grafting time on graft success of walnut (Juglans regia) in zero energy polyhouses
M Y BHAT | F A BANDAY | IMTIYAZ A WANI | M A DAR | ABID A LONE
This study was carried out during three successive seasons (2009, 2010 and 2011) on walnut (Juglans regia L.) seedlings. Grafting was done by wedge methods on nine dates (5 January, 15 January, 25 January, 5 February, 15 February, 25 February, 5 March, 15 March and 25 March). The pooled data showed that, highest success percentage of grafting was obtained on 25 January and lowest was recorded on 25 March. The maximum number of shoots/scion and leaves/scion was observed on 25 January. The highest value for scion diameter (0.94cm) was found on seedlings grafted on 25 January while as lowest scion diameter of 0.45cm from grafts, grafted on 25 March. The highest proportion of salable plants was observed on 15 January and lowest proportion was found on 25 March. Our results also suggest that January grafting produces better bud-take, number of leaves and scion growth as compared with February and March grafting. Therefore, the best time for grafting is January under polyhouse conditions.
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