American Journal of Life Sciences
Volume 8, Issue 5, October 2020, Pages: 165-171
Received: Mar. 11, 2020;
Accepted: Apr. 3, 2020;
Published: Sep. 28, 2020
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Yirga Belay Kindeya, Crop Department, Humera Agricultural Research Center (HuARC), Tigray, Ethiopia
Firew Mekbib, College of Agriculture and Environmental Science, School of Plant Science, Department of Plant Breeding and Genetics, Haramya University, Dire Dawa, Ethiopia
Eyasu Abraha Alle, Crop Department, Tigray Agricultural Research Institute (TARI) General Director, Tigray, Ethiopia
The study was conducted to evaluate the nature and magnitude of Genotype x Environment Interaction (GEI) for oil yield of sesame genotypes and to identify stable and promising genotypes for general and specific adaptations across sesame growing areas of northern Ethiopia: Humera, Dansha, Maykadra, Sheraro, Wargiba and Gendawuha. Randomized Complete Block Designs (RCBD) with three replications across all the environments used. Seventeen white seeded sesame genotypes were evaluated in all locations. The combined analysis of variance revealed that highly significance difference (p<0.001) among genotypes, environments and GEI for oil yield. The grand mean oil yield over six environments was 296.6kg/ha and the mean oil yield of genotypes across six environments ranged between 125.48kg/ha in Humera to 531.21kg/ha in Sheraro, respectively. High mean oil yield variation was detected among genotypes ranged between 193.6 kg/ha for G8 and 409.4kg/ha for G1 respectively. The oil yield of genotypes varied to different environments with rank changed, this variation among genotypes indicating that selection should be based on mean oil yield performances of the genotypes to their respective environments. According to stability models, AMMI Stability Value (ASV), Yield Stability Index (YSI) and Environmental Index (EI) land racegumero and HuRC-4 were identified as the most stable and higheroil yield were recommended for wider areas. While, HuRC-2and Acc 227880 were unstable accompanied with high oil yield performance will be recommended for specific environments.
Yirga Belay Kindeya,
Eyasu Abraha Alle,
Genotype x Environment Interaction and AMMI Analysis of Oil Yield Sesame (Sesamum indicum L.) Genotypes in Northern Ethiopia, American Journal of Life Sciences.
Vol. 8, No. 5,
2020, pp. 165-171.
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