Phenotypic Stability Analysis in Niger (Guizotiaabyssinica Cass)

Select Volume / Issue:

• Volume 4, Issue 4, July 2017

Year:

2017

Type of Publication:

Article

Keywords:

Phenotypic, Stability, Gxe, Niger

Authors:

V. V. Bhavsar,

Journal:

IJRAS

Volume:

4

Number:

4

Pages:

169-170

Month:

July

ISSN:

2348-3997

Note:

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. CC BY-NC-SA 4.0 Creative Commons License: https://creativecommons.org/licenses/by-nc-sa/4.0/

Abstract:

Eight elite genotypes with two checks varieties of Niger were evaluated for their yield performance over five locations. Stability parameters were worked out for seed yield. The sum of square due to genotypes and environment were significant, indicating presence of substantial genetic variability among the genotypes and seasons. The GxE interaction was observed to be significant. On partition of the same into linear and non-linear components both were found significant, suggesting their importance in the expression of seed yield in Niger. However, linear component was larger in magnitude, indicating that the prediction of performance across the environment is possible. This also confirm from overall ANOVA, where Linear is more than thrice over nonlinear. On examination of individual parameters, the genotypes IGPN 8007, IGPN 08-66 and PhuleKarala were observed to be responsive and stable. Simultaneously the genotypes IGPN 8004 and IGPN 9001was found to be suitable for poor environment conditions (below average stability). However, the genotypes IGPN 08-21, IGPN 08-26,IGPN 08-33 and IGP 76 suitable under rich environmental conditions (above average stability). It is therefore worth to utilize these genotypes in the Niger improvement program to converage the stability characteristics of seed yield. The stability parameters appeared to be governed by different gene or genes in combination in Niger

Full text: IJRAS_560_FINAL.pdf [Bibtex]