Vol. 6, Issue 6 (2018)
Evaluation of juice and wine varieties of grapes (Vitis spp) for petiole nutrient content, bud break, yield and yield components
Author(s): D Vijaya, G Ram Reddy, Veena Joshi, Mamatha and D Anitha Kumari
Abstract: Twelve grape varieties (six wine grape varieties from Vitis vinifera and six juice varieties derived from the V. labrusca and complex interspecies hybrids with V. vinifera) were evaluated for Southern Telangana Zone at Grape Research Station, SKLTSHU, Hyderabad. The experiment was conducted for six years from 2009-10 to 2014-15 for petiole nutrient content, bud break, yield and yield components. The petiole N concentration varied significantly from 0.90% in Chenin Blanc to 1.17% in Savignon Blanc and a negative correlation was recorded with juice yield (r = - 0.46). The petiole P content ranged significantly from 0.51% in Gulabi × Bangalore Purple to 0.66% in Savignon Blanc (%) and a positive correlation was recorded with yield (r = 0.37) and juice yield (r = 0.33). The petiole K content was significantly lowest in Bangalore Blue (2.95 %) and highest in Shiraz (4.09 %) and a positive correlation was recorded with yield (r = 0.44) and juice yield (r = 0.67). Hence petiole nutrient content should be considered when developing fertilization programs where it is possible to reduce the application of nutrients in varieties recording high absorption capacity. Significantly lesser number of days for bud break was required for varieties Chenin Blanc (8.6 days) and Pusa Navrang (9.9 days). A strong negative correlation was observed (r = - 0.88) between yield and days taken for bud break. Significantly highest yield was recorded with red wine variety Shiraz (25.2 kg vine-1) followed by white wine cv Chenin Blanc (21.6kg vine-1) and juice variety Pusa Navrang (17.8 kg vine-1). Lower yields ranging from 3 to 4.2 kg vine-1 was recorded with red wine cv Zinfandel, Merlot and Cabernet Sauvignon. While other varieties recorded moderate yields. Significantly highest juice recovery was recorded in white wine cv Chenin Blanc (66.7%) followed by juice cv Athens, H - 23 and Pusa Navrang and red wine cv Shiraz and Cabernet Sauvignon. These results signify the high potential of Southern Telangana Zone for growing wine and juice varieties with further efforts to improve the quality.
Pages: 2739-2745 | 959 Views 111 Downloads
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How to cite this article:
D Vijaya, G Ram Reddy, Veena Joshi, Mamatha, D Anitha Kumari. Evaluation of juice and wine varieties of grapes (Vitis spp) for petiole nutrient content, bud break, yield and yield components. Int J Chem Stud 2018;6(6):2739-2745.
