Screening of Bread Wheat Genotypes for Stem Reserves Remobilization, Relative Water Content and Osmotic Adjustment under Drought Stress
Drought one of the most important global threats against bread wheat production. In order to identify physiological traits associated with drought tolerance, 52 bread wheat varieties were cultured under two normal and drought stress condition in a randomized complete block desigen with three replica...
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| Format: | Article |
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Islamic Azad University, Tabriz Branch
2015-05-01
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| Series: | Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī |
| Subjects: | |
| Online Access: | http://jcep.iaut.ac.ir/article_516698_d961dfa337e881783764fd886ba6762e.pdf |
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| author | Z Soleimani H. Ramshini S.M.M. Mortazaviyan B. Foghi |
| author_facet | Z Soleimani H. Ramshini S.M.M. Mortazaviyan B. Foghi |
| author_sort | Z Soleimani |
| collection | DOAJ |
| description | Drought one of the most important global threats against bread wheat production. In order to identify physiological traits associated with drought tolerance, 52 bread wheat varieties were cultured under two normal and drought stress condition in a randomized complete block desigen with three replications. RWC (in three independent times), leaf rolling, leaf silvering, days to flowering, days to maturity and stem reserve remobilization were investigeted. Also in a pot experiment osmotic adjustment of the varieties were measured at seedling stage. varieties Star and Bezostaya had the highest RWC (0.79 and 0.78, respectively). Osmotic adjustment in Rasol and Unknown11 were highest (0.58 and 0.56, respectively). Varieties Tipik, Unknown11 and Azar2 showed the least decrease in thousand grain weight after spraying with KI (4.8, 5.5 and 5.5, respectively). Also varieties Dez, Gaspard and MV-17 have the highest degree of leaf silvering and varieties Niknejad, Star and Kohdasht under drought stress were able than the other varieties bring their leaves to form a rolling and cope with water deficit. Under drought stress, Varieties Alborz, Zagros and Inia were observed premature than the other varieties and Gaspard and Kaslojen varieties were observed late mature than the other varieties. Altogetehr varieties Kohdasht, Star and Bezostaya can be used as genetic resources for leaf water retention under drought stress condition for imjproving other varieties. Also as Azar2 and Unknown11 had highest amount of thousand grain weight under normal condition and simoultanously showed high ability in stem reserves remobilization they can be selected as parents in crosses for improving these traits. |
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| id | doaj.art-029b0b0fdd104ab88372e0620b6eecd6 |
| institution | Directory Open Access Journal |
| issn | 2538-1822 2476-731X |
| language | fas |
| last_indexed | 2024-12-22T05:30:04Z |
| publishDate | 2015-05-01 |
| publisher | Islamic Azad University, Tabriz Branch |
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| series | Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī |
| spelling | doaj.art-029b0b0fdd104ab88372e0620b6eecd62022-12-21T18:37:29ZfasIslamic Azad University, Tabriz BranchIkufīziyuluzhī-i Giyāhān-i Zirā̒ī2538-18222476-731X2015-05-0191(33) بهار7992516698Screening of Bread Wheat Genotypes for Stem Reserves Remobilization, Relative Water Content and Osmotic Adjustment under Drought StressZ Soleimani0H. Ramshini1S.M.M. Mortazaviyan2B. Foghi3Former MSc. Student of Agronomy, College of Aburaihan, University of Tehran, Pakdasht, IranAssistant Prof., Department of Agronomy Sciences and Plant Breeding, College of Aburaihan, University of Tehran, Pakdasht, IranAssistant Prof., Department of Agronomy Sciences and Plant Breeding, College of Aburaihan, University of Tehran, Pakdasht, IranStaff member, Department of Agronomy Sciences and Plant Breeding, College of Aburaihan, University of Tehran, Pakdasht, IranDrought one of the most important global threats against bread wheat production. In order to identify physiological traits associated with drought tolerance, 52 bread wheat varieties were cultured under two normal and drought stress condition in a randomized complete block desigen with three replications. RWC (in three independent times), leaf rolling, leaf silvering, days to flowering, days to maturity and stem reserve remobilization were investigeted. Also in a pot experiment osmotic adjustment of the varieties were measured at seedling stage. varieties Star and Bezostaya had the highest RWC (0.79 and 0.78, respectively). Osmotic adjustment in Rasol and Unknown11 were highest (0.58 and 0.56, respectively). Varieties Tipik, Unknown11 and Azar2 showed the least decrease in thousand grain weight after spraying with KI (4.8, 5.5 and 5.5, respectively). Also varieties Dez, Gaspard and MV-17 have the highest degree of leaf silvering and varieties Niknejad, Star and Kohdasht under drought stress were able than the other varieties bring their leaves to form a rolling and cope with water deficit. Under drought stress, Varieties Alborz, Zagros and Inia were observed premature than the other varieties and Gaspard and Kaslojen varieties were observed late mature than the other varieties. Altogetehr varieties Kohdasht, Star and Bezostaya can be used as genetic resources for leaf water retention under drought stress condition for imjproving other varieties. Also as Azar2 and Unknown11 had highest amount of thousand grain weight under normal condition and simoultanously showed high ability in stem reserves remobilization they can be selected as parents in crosses for improving these traits.http://jcep.iaut.ac.ir/article_516698_d961dfa337e881783764fd886ba6762e.pdfBread wheat varietiesDrought toleranceIodide potasium stressPhysiological traits |
| spellingShingle | Z Soleimani H. Ramshini S.M.M. Mortazaviyan B. Foghi Screening of Bread Wheat Genotypes for Stem Reserves Remobilization, Relative Water Content and Osmotic Adjustment under Drought Stress Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī Bread wheat varieties Drought tolerance Iodide potasium stress Physiological traits |
| title | Screening of Bread Wheat Genotypes for Stem Reserves Remobilization, Relative Water Content and Osmotic Adjustment under Drought Stress |
| title_full | Screening of Bread Wheat Genotypes for Stem Reserves Remobilization, Relative Water Content and Osmotic Adjustment under Drought Stress |
| title_fullStr | Screening of Bread Wheat Genotypes for Stem Reserves Remobilization, Relative Water Content and Osmotic Adjustment under Drought Stress |
| title_full_unstemmed | Screening of Bread Wheat Genotypes for Stem Reserves Remobilization, Relative Water Content and Osmotic Adjustment under Drought Stress |
| title_short | Screening of Bread Wheat Genotypes for Stem Reserves Remobilization, Relative Water Content and Osmotic Adjustment under Drought Stress |
| title_sort | screening of bread wheat genotypes for stem reserves remobilization relative water content and osmotic adjustment under drought stress |
| topic | Bread wheat varieties Drought tolerance Iodide potasium stress Physiological traits |
| url | http://jcep.iaut.ac.ir/article_516698_d961dfa337e881783764fd886ba6762e.pdf |
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