Investigating Stability Parameters for Agronomic and Quality Traits of Durum Wheat Grown under Mediterranean Conditions
Durum wheat in the Mediterranean grows under rainfed conditions, where unpredictable climatic conditions result in substantial variation in grain yield and quality. Climate change intensifies Genotype × Environment interactions and urges breeders to escalate their efforts to breed cultivars combinin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/8/1774 |
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| author | Angelos C. Kyratzis Andreas Pallides Andreas Katsiotis |
| author_facet | Angelos C. Kyratzis Andreas Pallides Andreas Katsiotis |
| author_sort | Angelos C. Kyratzis |
| collection | DOAJ |
| description | Durum wheat in the Mediterranean grows under rainfed conditions, where unpredictable climatic conditions result in substantial variation in grain yield and quality. Climate change intensifies Genotype × Environment interactions and urges breeders to escalate their efforts to breed cultivars combining high performance and stability. The current study aimed to appraise the relations between twelve stability parameters derived by different statistical models for yield, yield-related and quality traits of durum wheat grown under Mediterranean conditions. Stability parameters were estimated in two experiments of twenty and sixteen cultivars, respectively. The parameters were categorized into three groups. Group <i>A</i> included Additive Main Effect and Multiplicative Interaction (AMMI)-derived parameters (ASV and AWAI), Wrickle’s ecovalence (Wi), Shukla’s stability variance (σ<sup>2</sup>), and the nonparametric parameters Si<sub>(1)</sub> and Si<sub>(2)</sub>. Group <i>B</i> included regression parameters (bi, Bi_A), Coefficient of Variance (CV), and Superiority measure (Pi). Group <i>C</i> encompassed deviation from regression parameters (s<sup>2</sup>di-DJi) when the heterogeneity of the slope was significant. Correlations between stability parameters for different traits and the between stability parameters and the traits per se were modest. Stability parameters of Group B had higher repeatability for grain yield. The results of the present study contribute to the adjustment of durum wheat breeding strategies. |
| first_indexed | 2024-03-09T12:03:09Z |
| format | Article |
| id | doaj.art-d63f2c0740f94fd19ddc2b78f3eac574 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T12:03:09Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-d63f2c0740f94fd19ddc2b78f3eac5742023-11-30T23:01:51ZengMDPI AGAgronomy2073-43952022-07-01128177410.3390/agronomy12081774Investigating Stability Parameters for Agronomic and Quality Traits of Durum Wheat Grown under Mediterranean ConditionsAngelos C. Kyratzis0Andreas Pallides1Andreas Katsiotis2Department of Vegetable Crops, Agricultural Research Institute, Athalassa, Nicosia 1516, CyprusDepartment of Plant Improvement, Agricultural Research Institute, Athalassa, Nicosia 1516, CyprusDepartment of Agricultural Science, Biotechnology and Food Science, Cyprus University of Technology, 30 Archbishop Kyprianos Street, Lemesos 3036, CyprusDurum wheat in the Mediterranean grows under rainfed conditions, where unpredictable climatic conditions result in substantial variation in grain yield and quality. Climate change intensifies Genotype × Environment interactions and urges breeders to escalate their efforts to breed cultivars combining high performance and stability. The current study aimed to appraise the relations between twelve stability parameters derived by different statistical models for yield, yield-related and quality traits of durum wheat grown under Mediterranean conditions. Stability parameters were estimated in two experiments of twenty and sixteen cultivars, respectively. The parameters were categorized into three groups. Group <i>A</i> included Additive Main Effect and Multiplicative Interaction (AMMI)-derived parameters (ASV and AWAI), Wrickle’s ecovalence (Wi), Shukla’s stability variance (σ<sup>2</sup>), and the nonparametric parameters Si<sub>(1)</sub> and Si<sub>(2)</sub>. Group <i>B</i> included regression parameters (bi, Bi_A), Coefficient of Variance (CV), and Superiority measure (Pi). Group <i>C</i> encompassed deviation from regression parameters (s<sup>2</sup>di-DJi) when the heterogeneity of the slope was significant. Correlations between stability parameters for different traits and the between stability parameters and the traits per se were modest. Stability parameters of Group B had higher repeatability for grain yield. The results of the present study contribute to the adjustment of durum wheat breeding strategies.https://www.mdpi.com/2073-4395/12/8/1774durum wheatMediterraneanclimate changeG × E interactionsstabilitygrain yield |
| spellingShingle | Angelos C. Kyratzis Andreas Pallides Andreas Katsiotis Investigating Stability Parameters for Agronomic and Quality Traits of Durum Wheat Grown under Mediterranean Conditions Agronomy durum wheat Mediterranean climate change G × E interactions stability grain yield |
| title | Investigating Stability Parameters for Agronomic and Quality Traits of Durum Wheat Grown under Mediterranean Conditions |
| title_full | Investigating Stability Parameters for Agronomic and Quality Traits of Durum Wheat Grown under Mediterranean Conditions |
| title_fullStr | Investigating Stability Parameters for Agronomic and Quality Traits of Durum Wheat Grown under Mediterranean Conditions |
| title_full_unstemmed | Investigating Stability Parameters for Agronomic and Quality Traits of Durum Wheat Grown under Mediterranean Conditions |
| title_short | Investigating Stability Parameters for Agronomic and Quality Traits of Durum Wheat Grown under Mediterranean Conditions |
| title_sort | investigating stability parameters for agronomic and quality traits of durum wheat grown under mediterranean conditions |
| topic | durum wheat Mediterranean climate change G × E interactions stability grain yield |
| url | https://www.mdpi.com/2073-4395/12/8/1774 |
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