Soft wood grafting in purple passion fruit (Passiflora edulis)
2009
Kundan Kishore | Pathak, K A | Shukla, Rohit
Mizoram Centre, ICAR, Research Complex for NEB Region, Kolasib, Mizoram 796 081 Received: 25 July 2008 An experiment was conducted to evaluate effect grafting season, scion length and of grafting height was evaluated for grafting success, field survival disease incidence, yield and physic-chemical properties of purple passion fruit (Passiflora edulis Sims) during 2004--07. The grafting during June took the minimum days to callusing (7.33), bud swell (9.6) and bud burst (11.0). The graft success (74.2%), field survival (69.8%), yield (178.5 fruits/vine), fruit weight (44.3 g) and juice percentage (28.7) were significantly higher in June grafted vines. The early bud burst, higher graft success, field survival, early fruiting, yield, fruit weight and juice percentage were recorded with 25 cm scion length and 10 cm graft height. The interaction showed that the combination of June grafting, 25 cm scion length and 10 cm graft height took the minimum days for callus formation (6.6), bud swell (8.6) and bud burst (9.6). The maximum graft success (81.6%), survival (84.6%), growth rate (38.6 crn! month), early fruiting (236.0 days), more fruit weight (46.5 g), more yield (181.5 fruits/vine) and juice content (29.2%) were recorded with June grafting with 25 cm scion length and 10 cm grafting height. The minimum graft success, vine survival, yields and fruit weight was recorded with December grafting and with scion length of 15 cm and grafting height of 20 cm. The incidence of wilt and collar rot diseases were not observed in grafted passion fruit vine up to 2 years, while in control plot 34% vines were affected with diseases.
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