STABILITY EVALUATION OF BREAD WHEAT GENOTYPES UNDER VARYING ENVIRONMENTS BY AMMI MODEL
Yükleniyor...
Dosyalar
Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Stable and high yield varieties identification
under various conditions prior to release as a varie ty is the main steps for breeding program. In order
to exploit narrow and broad adaptability of geno types and assess their effects, environment and GE
interaction, 12 spring bread wheat genotypes were
grown at four various experimental locations during
2013-14 and 2014-15 growing seasons. The stabil ity and superiority of genotypes were identified by
the AMMI (additive main effect and multiplicative
interaction) and GGE (genotype, genotype x envi ronment) biplot analysis. The AMMI analysis
showed that the variance of genotype, environment
and GE interaction were significant and the major
treatment sum of squares were significantly affect ed by environments (85.47%), genotypes (8.51%)
and GE interaction (6.07%). On the other hand, the
first principal component axes (PCA 1) distributed
to the complete interaction as 62.56%, and the
second PCA 2 axes 37.44%. The GGE bi-plot anal ysis indicated that the total variation PC (principle
component) was 83.09%, and PC1 was accounted
as 63.69%, PC2 only 19.40%. The AMMI analysis
showed that C11 was quite stable as well as the
highest yielder among test genotypes, while C7 and
C8 were unstable and low yielding across environ ments. The GGE biplot indicated that it was detect ed in two mega-environments, and the first mega environment covered three environment (E1, E2
and E3), and the second mega-environment covered
only E4. The genotypes C11 and C12 remained
superior under ME I, while genotypes C1, C3 and
C5 were for ME II. Among the genotypes, the gen otype C1 may be recommended to be developed
and released as an approved cultivar for being com paratively more stable and the highest yielder.
Therefore the AMMI and GGE biplot models have
an opportunity to determine the best genotypes
under multiple environments considering on adapt ability and stability concentrating on overall per formance for screening superior genotypes.
Açıklama
Anahtar Kelimeler
Yield, interaction, superiority, environment.
Kaynak
Fresenius Environmental Bulletin
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
28
Sayı
9
