Growth and tuber yield performance of two greater yam (Dioscorea alata L.) varities under different growing conditions

Abstract

An experiment was carried out, with a view to study the Response of Greater Yam (Dioscorea alata L.) to different growing conditions at Vegetable Research Scheme, Regional Horticultural Research Station of the Navsari Agricultural University, Navsari, Gujarat, India during 2015-2016 and 2016-2017. The experiment was conducted in Large Plot; analysis as CRD with factorial concept (FCRD) with three repetitions which included three growing conditions (G1 :Naturally Ventilated Poly house, G2 : Net house and G3 :Open field ),three planting distance (D1: 60 cm x 60 cm, D2 : 60 cm x 45 cm and D3: 90 cm x 90 cm) and two varieties (V1 : Round type and V2 : Long type). The results indicated that significantly higher amount of growth attributes were recorded with V2 (Long type) in growth and yield parameters like total number of tillers (6.68), vine length (7.26 m), fresh weight of tuber (1351.19 g), tuber length (25.48 cm), tuber yield vine -1 (1.36 kg) and maximum tuber yield 1000 m-2 (2810.79 kg)as compared to V2 (Round type).