Exploring the Morphological Traits and the Physiology of Yield Formation in Dominant Barley (Hordeum vulgare L. ) cultivars in Temperate Zone and Gammairradiated Improved Barley, in Iran

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Navid Sorayya; SOUFIZADEH SAEID; ESKANDARI ALI; KAMBOUZIA JAFAR; ZAND ESKANDAR

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Journal: Iranian Journal of Field Crop Science Year:2018 | Volume:48 | Issue:4 Page(s): 1149-1160

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Title

Exploring the Morphological Traits and the Physiology of Yield Formation in Dominant Barley (Hordeum vulgare L. ) cultivars in Temperate Zone and Gammairradiated Improved Barley, in Iran

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Keywords

Plant heightQ1

leaf area indexQ2

dry matter fractionQ1

grain yieldQ2

Abstract

Barley, considered as a strategic crop, plays an important role in food security in Iran. An experiment was conducted at the experimental field of Agricultural Research Institute of Atomic Energy Organization in Karaj in 2015, as a randomized complete block design with three replications. Treatments included 14 barley cultivars (13 cultivars bred using classical breeding approaches and one gamma irradiated cultivars). Results showed that there were significant differences between most of the studied barley cultivars regarding physiological and morphological traits (P ˂ 0. 05). The newer cultivars (those been introduced during the last decade) and Roudasht showed advantages over older cultivars with regard to leaf area index, radiation use efficiency and crop growth rate. Cultivars Valfajr, Makouee and Bahman had the highest leaf mass fraction (0. 27, 0. 27 and 0. 25, respectively), mostly as a result of being late-maturity cultivars along with having high leaf area index and specific leaf area. On the other side, cultivars Behrokh, Roudasht and Makouee had the highest stem mass fraction (0. 70, 0. 68 and 0. 67, respectively) mainly as a result of their corresponding growth habits (tworows, gamma-irradiated and tall-statured, respectively). Also results showed that cultivars which had the highest stem and leaf mass fractions such as Makouee, Roudasht and Valfajr produced the lowest spike mass fraction and in turn grain yield. Cultivars Lout, Nosrat, Rayhann 03 and Fajr 30 had the highest spike mass fraction (739. 9, 720. 4, 701. 4 and 563. 3 gm-2, respectively) which could be attributed to their six-row habit of spike, early-maturity and lower leaf and stem dry matter at flowering stage. Overall, it could be concluded that tall statured late-maturity cultivars along with gammairradiated improved barley cultivar had the highest leaf and stem mass fractions compared to dwarf and early maturity cultivars. Such advantage, however, translated into lower spike mass fraction and grain yield of the former group.

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APA: Copy

Navid, Sorayya, SOUFIZADEH, SAEID, ESKANDARI, ALI, KAMBOUZIA, JAFAR, & ZAND, ESKANDAR. (2018). Exploring the Morphological Traits and the Physiology of Yield Formation in Dominant Barley (Hordeum vulgare L. ) cultivars in Temperate Zone and Gammairradiated Improved Barley, in Iran. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 48(4 ), 1149-1160. SID. https://sid.ir/paper/153709/en

Vancouver: Copy

Navid Sorayya, SOUFIZADEH SAEID, ESKANDARI ALI, KAMBOUZIA JAFAR, ZAND ESKANDAR. Exploring the Morphological Traits and the Physiology of Yield Formation in Dominant Barley (Hordeum vulgare L. ) cultivars in Temperate Zone and Gammairradiated Improved Barley, in Iran. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2018;48(4 ):1149-1160. Available from: https://sid.ir/paper/153709/en

IEEE: Copy

Sorayya Navid, SAEID SOUFIZADEH, ALI ESKANDARI, JAFAR KAMBOUZIA, and ESKANDAR ZAND, “Exploring the Morphological Traits and the Physiology of Yield Formation in Dominant Barley (Hordeum vulgare L. ) cultivars in Temperate Zone and Gammairradiated Improved Barley, in Iran,” IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 48, no. 4 , pp. 1149–1160, 2018, [Online]. Available: https://sid.ir/paper/153709/en

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