Assessment of Promising Diverse Germplasm Accessions for Stability with Respect to Yield and Its Attributing Traits in Vegetable Amaranth
T. N. Lakshmidevamma, Sanjeev K. Deshpande, R. C. Jagadeesha, B. R. Patil, Ramangouda V. Patil, Kiran Mirajkar
International Journal of Environment and Climate Change · pp. 870–881 · Published 8 Jun 2022
10.9734/ijecc/2022/v12i1030875Abstract
Vegetable amaranth is one of the popular leafy vegetable that occupies a prominent place in India owing to its high nutritive value and fast growing ability. The presence of considerable genetic variability in the amaranth along with very high phenotypic plasticity demands the development of stable genotypes to secure sustainable production. The present research was carried out to quantify the effect of genotype x environment interaction on the performance of 30 identified promising genotypes of vegetable amaranth. The experiment was laid out in the Randomized Complete Block Design with three replications at three locations viz., Arabhavi, Dharwad and Bagalkot during kharif 2018-19. Stability analysis was done as per the linear regression model described by Eberhart and Russell [1] that measures the genotypic response to changing environments. Variance due to environment + (genotype x environment) was significant for four of the studied traits viz., fresh green yield per hectare, fresh green yield per plant, plant height and leaf length which specified the existence of noteworthy interaction between the genotypes and the environmental conditions. The accessions, VA-16, CO-1, IC-553719 and IC-469645 have been identified as the high yielding stable genotypes for fresh green yield. Stable accessions for plant height include IC-536714, IC-541407, Arka amaranth, IC-469579 and IC-553719 and for leaf length were CO-1, IC-550143, IC-551472, IC-536714 and IC-469722. Further, some stable accessions for yield and its attributes were indicated that can be, commercialised or used in future breeding programs.
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