Trends in main agronomic traits and grain yield of wheat landraces and cultivars during the last decades in Iran

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Alipour Hadi; BIHAMTA MOHAMMAD REZA; MOHAMMADI VALIOLLAH; Peyghmbari Seyed Ali

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Journal: Iranian Journal of Field Crop Science Year:2019 | Volume:49 | Issue:4 Page(s): 125-136

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Title

Trends in main agronomic traits and grain yield of wheat landraces and cultivars during the last decades in Iran

Author(s)

Alipour Hadi | BIHAMTA MOHAMMAD REZA | MOHAMMADI VALIOLLAH | Peyghmbari Seyed Ali | Issue Writer Certificate

Keywords

Correlation analysisQ3

cultivarsQ1

genetic gainQ2

landracesQ2

wheatQ2

Abstract

Investigating the relationship between grain yield and main agronomic traits and understanding the trend of changes in traits during breeding history is important for breeding strategies. To meet these objectives, 313 Iranian wheat genotypes including 203 Iranian landraces and 110 Iranian cultivars were planted in an augmented design along with three check cultivars repeated in seven blocks in 2014 in the research field of Agronomy and Plant Breeding Department, University of Tehran. In order to increase accuracy and decrease environmental variations, the experiment has been replicated in three different locations. Linear regression analysis between investigated characteristics and year of cultivar release and year of collection of landraces showed that the grain yield and thousand grain weight were significantly increased in both cultivars and landraces while spike weight was significantly increased only in the cultivars. Plant height and spike length were significantly decreased only in the cultivars during 74 years of breeding programs. No significant changes, however, was observed in the landraces. Although the number of grain/spike was known as the most important and effective traits on grain yield based on the results of correlation and path analyses, there was no significant change for this trait during breeding programs. Since there were high phenotypic and genetic coefficient of variation for this trait, it could be one of the most important traits in future breeding programs.

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APA: Copy

Alipour, Hadi, BIHAMTA, MOHAMMAD REZA, MOHAMMADI, VALIOLLAH, & Peyghmbari, Seyed Ali. (2019). Trends in main agronomic traits and grain yield of wheat landraces and cultivars during the last decades in Iran. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 49(4 ), 125-136. SID. https://sid.ir/paper/374656/en

Vancouver: Copy

Alipour Hadi, BIHAMTA MOHAMMAD REZA, MOHAMMADI VALIOLLAH, Peyghmbari Seyed Ali. Trends in main agronomic traits and grain yield of wheat landraces and cultivars during the last decades in Iran. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2019;49(4 ):125-136. Available from: https://sid.ir/paper/374656/en

IEEE: Copy

Hadi Alipour, MOHAMMAD REZA BIHAMTA, VALIOLLAH MOHAMMADI, and Seyed Ali Peyghmbari, “Trends in main agronomic traits and grain yield of wheat landraces and cultivars during the last decades in Iran,” IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 49, no. 4 , pp. 125–136, 2019, [Online]. Available: https://sid.ir/paper/374656/en

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