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Evaluation of breeding populations of bread wheat (Triticum aestivum L.) based on agronomic and phenological traits
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Negar Aghaei   , Sohbat Bahraminejad * , Reza Amiri , Reza Mohammadi |
| Razi University |
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Abstract: (113 Views) |
In order to evaluate and group 585 F6 bread wheat lines from three different populations based on grain yield and important agronomic traits, along with their parents (Marvdasht, Winter backcross of Roshan, Sistan, Rasoul and MV-17) and the foreign cultivar Krichauff as a control, an experiment using an augmented design based on randomized complete block was conducted at Razi University in the 2019-2020 croping year. Analysis of variance of the controls showed that in the first population (Winter backcross of Roshan × MV-17) there was a highly significant difference in terms of plant height and Thousand grain weight between the lines. The lines of the second population (Marvdasht × Rasoul) and the third population (Winter backcross of Roshan × Sistan) also had highly significant differences in terms of plant height, Thousand grain weight, and grain yield. Grain yield had a positive and significant correlation with plant height and days to spike in the first population, a highly significant positive correlation with days to heading, and a highly significant negative correlation with days to physiological maturity in the third population. Cluster analysis placed the lines of the first, second, and third populations into three groups each. In total, five lines from the first population, eight lines from the second population, and three lines from the third population were selected as superior lines and can be used in breeding programs to introduce the variety.
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| Keywords: Cluster analysis, Correlation analysis, Inbred line, Grain yield |
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Full-Text [PDF 967 kb]
(48 Downloads)
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Type of Study: Research |
Subject:
Abiotic Stresses
Received: 2024/12/10 | Accepted: 2025/05/12 | Published: 2025/02/28
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