Heat and drought resistance criteria in spring bread wheat (Triticum aestivum L.): Morpho-physiological parameters for heat tolerance

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dc.contributor.authorBahar B.
dc.contributor.authorYildirim M.
dc.contributor.authorYucel C.
dc.date.accessioned2024-04-24T17:58:29Z
dc.date.available2024-04-24T17:58:29Z
dc.date.issued2011
dc.departmentDicle Üniversitesien_US
dc.description.abstractThis study was aimed at evaluating some morpho-physiological parameters such as stomatal conductance (gs), canopy temperature (CT), canopy temperature depression (CTD) and stay green duration (SGD) in terms of heat tolerance. For this purpose, trials designed according to randomized complete blocks were conducted with twenty-four spring bread wheat genotypes as three replicated in the Research and Application Area of Field Crops Department of Agricultural Faculty of Cukurova University in 2002 to 2003 and 2003 to 2004 growth seasons. The measurements of gs were made at two different dates at heading stage in 2003 to 2004 growth season. CT was measured at two growth stages (late milky and soft dough) in 2002 to 2003 (first) season and it was also measured at two different hours at the complete heading stage in 2003 to 2004 (second) season. CTD was measured at two different hours at the complete heading stage in the second season. The other morpho- physiological parameter was SGD, which was determined in the first growth season. As a result: (1) The high gs values were observed at both measuring dates even though there was no significant differences among the genotypes; (2) CT showed significant differences except T2 measurement in 2003 to 2004 season, yet significant negative correlations were found between CT and grain yield (GY) in 2003 to 2004 season and in general mean; (3) Despite not being significant differences among the genotypes, a strong positive correlation was found between CTD and GY; (4) In spite of the fact that genotypes did not show any statistical differences, it was found that SGD had a negative significant correlation with CT but positive non-significant correlation with GY. It is concluded from assessments of all physiological traits that such genotypes as Kauz/Altar 84//Ads, Varona Cno 79, Mon's'/Ald's'//Bow's' and WL6718 can be high yielding even if under heat stressed conditions, and can be used as gene pool in wheat breeding programs for tolerance to heat stress. © 2011 Academic Journals.en_US
dc.identifier.doi10.5897/sre11.418
dc.identifier.endpage2220en_US
dc.identifier.issn1992-2248
dc.identifier.issue10en_US
dc.identifier.scopus2-s2.0-79958788907
dc.identifier.scopusqualityN/A
dc.identifier.startpage2212en_US
dc.identifier.urihttps://doi.org/10.5897/sre11.418
dc.identifier.urihttps://hdl.handle.net/11468/23951
dc.identifier.volume6en_US
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherAcademic Journalsen_US
dc.relation.ispartofScientific Research and Essays
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCanopy Temperatureen_US
dc.subjectHeat Stress Toleranceen_US
dc.subjectSpring Bread Wheat (Triticum Aestivum L.)en_US
dc.subjectStay Greenen_US
dc.subjectStomatal Conductanceen_US
dc.titleHeat and drought resistance criteria in spring bread wheat (Triticum aestivum L.): Morpho-physiological parameters for heat toleranceen_US
dc.titleHeat and drought resistance criteria in spring bread wheat (Triticum aestivum L.): Morpho-physiological parameters for heat tolerance
dc.typeArticleen_US

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