Author(s):

C Jayalakshmi, S Saraswathy, A Subbiah, K Ilamurugu and D Balachandar

Abstract: An experiment was conducted in order to study the performance of wine varieties of grapes during winter pruning in the year 2017-2018 at Grapes Research Station, TNAU, Anaimalayanpatty, Theni, Tamil Nadu. The experiment was conducted in Randomized Block Design with three replications. The vines were trained on bower system with spacing of 3.0 m x 2.0 m and pruned during December. Of ten wine grapes varieties viz., (Cabernet Sauvignon, Zinfandel, Shiraz, Merlot, Manjiri Medika, Muscat Hamburg, Chenin Blanc, Sauvignon Blanc, Symphony and Viognier) evaluated, the variety Manjiri Medika recorded the highest values for pruning mass (4.28 kg vine^-1), shoot length (134.80 cm), number of canes vine^-1 (78.78), cane diameter (22.00 mm), number of berries bunch^-1 (278.54), individual bunch weight (258.33 g) and yield (8.12 kg vine^-1). The variety Muscat Hamburg had registered earliness in bud sprouting (13.74 days) with shorter internodal length (2.56 cm) and highest individual berry weight (3.94 g). The maximum number of internodes (13.29) was recorded in the variety Zinfandel. Number of bunches vine^-1 (37.60) was maximum in the variety Chenin Blanc.

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