Vol. 12, Issue 10 (2023)

Author(s):
Lingamurthy KR, Vasant M Ganiger, Ramachandra Naik K, TB Allolli, Venkateshalu, G Bhuvaneshwari and SM Prasanna

Abstract:
In the northern arid zone of Karnataka, at the vegetable block, department of vegetable sciences, College of Horticulture, Munirabad (Koppal), a field experiment was carried out in 2019 and 2020. Thirteen treatments were used in the factorial RCBD trial design. Two factors were viz., different portions of vine for planting and plant growth regulators. Basal portion (P₁), middle portion (P₂) and top portion (P₃) were three different portions of vine. CCC @ 500 ppm (G₁), CCC @ 1000 ppm (G₂), Ethrel @ 150 ppm (G₃) and Ethrel @ 300 ppm (G₄) were four plant growth regulators. The control treatments were basal portion of vine (C₁), middle portion of vine (C₂) and top portion of vine (C₃) all without application of growth regulator. Pooled results indicated, among the different portions of vine used for planting, the top portion of vine recorded significantly higher total tuber yield of 21.49 (t/ha) over other two treatments. The overall tuber yield of 23.31 (t/ha) was considerably higher after the application of CCC at 500 ppm. A considerably greater overall tuber yield of 25.70 (t/ha) and a marketable tuber yield of 23.37 (t/ha) was obtained as a result of the interaction effect of planting vine tops followed by the application of CCC at 500 ppm.