ARCHIVES
VOL. 2, ISSUE 1 (2020)
Performance evaluation of bread wheat (Triticum aestivum L.) varieties in the highlands of southwestern Part of Ethiopia
Authors
Tegegn Belete
Abstract
Twelve bread wheat varieties were evaluated
across three environments during two main cropping seasons (2021 and 2022) at
the highlands of Southwestern part of Ethiopia. The objectives of the study
were to estimate the magnitude and nature of genotype by environment
interaction (GEI) for grain yield and to determine yield stability of wheat
varieties in the highland areas of southwestern part of Ethiopia. The study was
conducted using a randomized complete design with three replications. The
result of the combined ANOVA for grain yield revealed highly significant
(P≤0.001) difference among environment (E) genotype (G) and GEI. Environment
explained 77.6% of the total variation, whereas G and GEI explained 3.87% and
10.57% of the total variation, respectively. The magnitude of the environment
was many times greater than the genotype, implying that most of the variation
in grain yield was due to the environment. Based on the combined ANOVA over
locations, the mean grain yield of environments ranged from 2tha-1 at
Gechi 2021 to 5.8t ha-1 at Dedo2022. The highest yield was harvested
from variety Danda’a (4.6t ha-1), while the lowest was from Ogolocho
(3.5t ha-1) and the average grain yield of varieties was 3.8t ha
1. Based on the GGE biplot analysis different wheat growing environments
were grouped into three mega-environments: The first mega environment includes
Gechi 2022, the second mega environment includes Dedo 2022, Gechi 2021 and Yem
2021 and third mega environment includes Yem 2022 and Dedo 2021 with the winner
varieties of Ogolocho, Daka and Danda’a respectively. Even though, the wheat
variety ETBW9089 not winner variety in the mega-environmnet, but showed
consistent performance across locations. Variety Danda’a and ETBW9089 can be
recommended for wider cultivation due to better grain yield and stability
performance across the test environments in the highlands of southwestern areas
of Ethiopia.
Download
Pages:35-40
How to cite this article:
Tegegn Belete "Performance evaluation of bread wheat (<i>Triticum aestivum</i> L.) varieties in the highlands of southwestern Part of Ethiopia". International Journal of Environmental and Ecology Research, Vol 2, Issue 1, 2020, Pages 35-40
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.