Studies on grape hybrids and their parents on different training systems

Abstract

Effect of different training systems on the yield and performance of some grape hybrids and their parents was investigated. Growth of the vine was more on the ‘Bower’ (129.18) than on the ‘Head’ (50.29) system of training. The number of shoots was more during April pruning in ‘Anab-e-Shahi’ (8.51 kg/vine) than other varieties. The weight of pruning per vine was more on ‘Bower’ system (6.87 kg) as compared to ‘head’ system (2.49 kg). Rate of shoot growth was slow in ‘Arka shyam’ (68.76 cm) but fast in ‘Arka kanchan’ (155.66 cm) on ‘Head system’. It was slow in case of ‘Arka hans’ (82.44 cm) but steep in ‘Arkavati’ (158.20 cm) trained on ‘Bower’ system. The highest stem girth was found in ‘Thompson Seedless’ (7.43 cm) and least in ‘Anab-e-Shahi’ (3.89 cm). The training system followed did not have any effect on stem girth. The degree of apical dominance was more on ‘Head’ system (0.79) than on ‘Bower’ system of training (0.67). Among the varieties, it was highest in ‘Anab-e-Shahi’ (1.00) while the least was in ‘Arkavati’ (0.40). Although the yield per vine in ‘Arka Kanchan’, ‘Arkavati’ and ‘Black Champa’ was more on the ‘Bower’ system, even on the ‘Head’ system they produced 60 to 70% of the yield obtained on the ‘Bower’ system on unit area basis. Hence, these varieties can be recommended for growing on ‘Head’ system of training.