Genotype by environment interactions (GEIs) for barley grain yield under salt stress condition

Ammar Elakhdar, Toshihiro Kumamaru, Kevin P. Smith, Robert S. Brueggeman, Ludovic J.A. Capo-chichi, Shyam Solanki

研究成果: ジャーナルへの寄稿記事

6 引用 (Scopus)

抄録

Changes in the relative genetic performance of genotypes across environments are referred to as genotype × environment interactions (GEIs). GEIs can affect barley breeding improvement for salt tolerance because it often complicates the evaluation and selection of superior genotypes. The present study evaluated the GEIs over 60 barley genotypes for yield components and grain yield in six salinity environments in North Delta, Egypt. Data were analyzed using the additive main effects and multiplicative interaction (AMMI) and Tai’s stability parameters. GEIs effects on yield explained 20.3, 20.1, 14.6, and 33.0% of the total variation besides, the first two principal components account for 67.3, 56.3, 64.3, and 83.7% of the explained variance in the four sets, respectively. Six genotypes namely G-4, G-7, G-20, G-34, G-36, and G-39 were found to be most stable and high yielding across environments (GY >2.00 t ha-1), and located close to zero projection onto the AEC ordinate. Tai’s stability parameters demonstrated that these genotypes were more responsive to the environmental changes. The genotypes G-50 and G-53 showed perfect/static stability (α = -0.95, -0.91, respectively). In contrast, the genotype; G-36 had α = 0 and λ = 1.10, indicating parallel with the environmental effects followed by G-44. Overall, we found that GEIs for grain yield are highly significant in all sets, suggesting that responded differently across environments. This interaction may be a result of changes in genotypes’ relative performance across environments, due to their differential responses to various abiotic factors.

元の言語英語
ページ(範囲)193-204
ページ数12
ジャーナルJournal of Crop Science and Biotechnology
20
発行部数3
DOI
出版物ステータス出版済み - 9 1 2017

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Hordeum
salt stress
Salts
grain yield
barley
Genotype
genotype
Salt-Tolerance
genotype-environment interaction
Egypt
Salinity
salt tolerance
yield components
Breeding
salinity

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science
  • Plant Science

これを引用

Genotype by environment interactions (GEIs) for barley grain yield under salt stress condition. / Elakhdar, Ammar; Kumamaru, Toshihiro; Smith, Kevin P.; Brueggeman, Robert S.; Capo-chichi, Ludovic J.A.; Solanki, Shyam.

:: Journal of Crop Science and Biotechnology, 巻 20, 番号 3, 01.09.2017, p. 193-204.

研究成果: ジャーナルへの寄稿記事

Elakhdar, Ammar ; Kumamaru, Toshihiro ; Smith, Kevin P. ; Brueggeman, Robert S. ; Capo-chichi, Ludovic J.A. ; Solanki, Shyam. / Genotype by environment interactions (GEIs) for barley grain yield under salt stress condition. :: Journal of Crop Science and Biotechnology. 2017 ; 巻 20, 番号 3. pp. 193-204.
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