Vol. 11, Issue 12 (2022)

Author(s):
Bhavya M, Dinesh Kumar M, Girijesh GK, Sridhara S, Dhananjaya BC and Dhushyantha Kumar BM

Abstract:
The field experiments were conducted at College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga during summer 2021 and 2022 on sandy loam soils. The experiment was laid out in a split plot design comprising of three replications and twenty four treatment combinations. Six finger millet genotypes of varying duration were evaluated for grain yield under drought stress imposed by withholding the irrigation for fifteen days at vegetative, reproductive and grain filling stage tested against well watered condition. The genotype ML-365 showed least significant marginal yield (7.73, 21.59 and 12.65%) reduction closely followed by GPU-28 (10.95, 28.58 and 12.65%) at vegetative, reproductive and grain filling stage, respectively. The grain yield obtained were used to determine different drought tolerance indices (DTI) viz. geometric mean productivity, mean productivity, harmonic mean, drought resistance index, yield index, yield stability index for each genotype. The genotype ML-365 was found highly drought tolerant across DTI whereas GPU-28, KMR-301 and L-5 were found moderate while KMR-204 and GPU-45 remained less tolerant.