Interaction effect of structured water and fertilizer on growth and yield of grape (Vitis vinifera L.) cv. Manjri Naveen

Abstract

A field experiment on ‘Effect of structured water and fertilizer on growth, yield and quality of grape (Vitis vinifera L.) cv Manjri Naveen’ was carried out during 2014-2015 at Main Horticultural Research and Extension Centre, University of Horticultural Sciences, Udyanagiri, Bagalkot. The experiment was laid out in split plot design with two types of water (structured water and bore well water) and five levels of fertilizer (100, 90, 80, 70, 60% of the RDF). Among the types of water, structured water recorded significantly the highest internodal length (4.83 cm and 5.35 cm) at 45 and 90 days respectively and girth of the fruiting shoot at 90 days (0.74 cm). The maximum berry diameter (13.42 mm), weight of 100 berries (169.98 g) and fruit yield (40.67 t/ha) were recorded. Among the levels of fertilizer, 100% RDF per vine was recorded significantly the highest internodal length (6.05 cm and 6.52 cm) at 45 and 90 days respectively and girth of the fruiting shoot at 90 days (0.85 cm). The maximum berry diameter (15.02 mm), weight of 100 berries (185.89 g) and fruit yield (44.07 t/ha). However, the interaction effect between types of water and levels of fertilizer at 90 days after for pruning in structured water recorded significantly highest the internodal length (6.70 cm) and girth (0.92 cm) of the fruiting shoot. The maximum berry diameter (15.26 mm), maximum weight of 100 berries (189.33 g) and fruit yield 45.30 t/ha.