Interpreting Genotype × Environment Interaction in Bread Wheat (Triticum aestivum L.) Genotypes Using Nonparametric Measures

Zeki MUT; Nevzat AYDIN; Hasan Orhan BAYRAMOĞLU; Hasan ÖZCAN

Makale detayları

Interpreting Genotype × Environment Interaction in Bread Wheat (Triticum aestivum L.) Genotypes Using Nonparametric Measures

Yazarlar:

Zeki MUT | Nevzat AYDIN | Hasan Orhan BAYRAMOĞLU | Hasan ÖZCAN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 2, pp.127-137

Belge Tipi:

Makale

Yayın Tarihi:

1/2009

Belge Dili:

Türkçe

Document ID (Org No.):

2000808490

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Anahtar kelimeler:

Özet:

 

The objectives of this study were to compare nonparametric stability measures, and to identify promising high-yield and stable bread wheat (Triticum aestivum L.) genotypes in 7 environments during 2003-2005 in the central Black Sea region of Turkey. The bread wheat genotypes (20 advanced lines and 5 cultivars) were grown in a randomized complete block design with 4 replications in 7 different environments. Three nonparametric statistical tests of significance for genotype × environment (GE) interaction and 10 nonparametric measures of stability were used to identify stable genotypes in 7 environments. Combined ANOVA and nonparametric tests (Kubinger, Hildebrand, and De Kroon/Van der Laan) of genotype × environment interaction indicated the presence of significant crossover and non-crossover interactions, as well as significant differences between genotypes. In this study high TOP values (proportion of environments in which a genotype ranked in the top third) and low rank-sum values (sum of ranks of mean yield and Shukla’s stability variance) were associated with high mean yield. Nonetheless, results of the other nonparametric tests were negatively correlated with mean yield. In the simultaneous selection for high yield and stability, only the rank-sum and TOP methods were useful in terms of the principal component analysis (PCA) results, and correlation analysis of nonparametric stability statistics and yield. According to these stability parameters (TOP and rank-sum) G7 (VONA//KS75210/TAM101), G9 (JUP/4/CLLF/3/II14.53/ODIN//CI13431/WA 00477), G20 (Sakin), and G21 (VORONA/KAUZ//1D13.1/MLT) were the most stable genotypes for grain yield. The results also revealed that based on nonparametric test results stability could be classified into 3 groups, according to agronomic and biological concepts of stability.

 

The objectives of this study were to compare nonparametric stability measures, and to identify promising high-yield and stable bread wheat (Triticum aestivum L.) genotypes in 7 environments during 2003-2005 in the central Black Sea region of Turkey. The bread wheat genotypes (20 advanced lines and 5 cultivars) were grown in a randomized complete block design with 4 replications in 7 different environments. Three nonparametric statistical tests of significance for genotype × environment (GE) interaction and 10 nonparametric measures of stability were used to identify stable genotypes in 7 environments. Combined ANOVA and nonparametric tests (Kubinger, Hildebrand, and De Kroon/Van der Laan) of genotype × environment interaction indicated the presence of significant crossover and non-crossover interactions, as well as significant differences between genotypes. In this study high TOP values (proportion of environments in which a genotype ranked in the top third) and low rank-sum values (sum of ranks of mean yield and Shukla’s stability variance) were associated with high mean yield. Nonetheless, results of the other nonparametric tests were negatively correlated with mean yield. In the simultaneous selection for high yield and stability, only the rank-sum and TOP methods were useful in terms of the principal component analysis (PCA) results, and correlation analysis of nonparametric stability statistics and yield. According to these stability parameters (TOP and rank-sum) G7 (VONA//KS75210/TAM101), G9 (JUP/4/CLLF/3/II14.53/ODIN//CI13431/WA 00477), G20 (Sakin), and G21 (VORONA/KAUZ//1D13.1/MLT) were the most stable genotypes for grain yield. The results also revealed that based on nonparametric test results stability could be classified into 3 groups, according to agronomic and biological concepts of stability.

Makale detayları

Interpreting Genotype × Environment Interaction in Bread Wheat (Triticum aestivum L.) Genotypes Using Nonparametric Measures

Yazarlar:

Zeki MUT | Nevzat AYDIN | Hasan Orhan BAYRAMOĞLU | Hasan ÖZCAN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 2, pp.127-137

Belge Tipi:

Makale

Yayın Tarihi:

1/2009

Belge Dili:

Türkçe

Document ID (Org No.):

2000808490

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Bread wheat

genotype × environment interaction

nonparametric stability measures

Sayı

Makale detayları

Interpreting Genotype × Environment Interaction in Bread Wheat (Triticum aestivum L.) Genotypes Using Nonparametric Measures

Yazarlar: Zeki MUT | Nevzat AYDIN | Hasan Orhan BAYRAMOĞLU | Hasan ÖZCAN

Yayıncı: TUBITAK

Dergi: Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 2, pp.127-137

Belge Tipi: Makale

Yayın Tarihi: 1/2009

Belge Dili: Türkçe

Document ID (Org No.): 2000808490

Sıklık: İki Aylık

eISSN: 1303-6173

pISSN: 1300-011X

Bread wheat

genotype × environment interaction

nonparametric stability measures

Sayı

Yazarlar:

Zeki MUT | Nevzat AYDIN | Hasan Orhan BAYRAMOĞLU | Hasan ÖZCAN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 2, pp.127-137

Belge Tipi:

Makale

Yayın Tarihi:

1/2009

Belge Dili:

Türkçe

Document ID (Org No.):

2000808490

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X