Leaf rolling reduces photosynthetic loss in maize under severe drought

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dc.authorid0000-0001-6528-4591en_US
dc.contributor.authorSağlam, Aykut
dc.contributor.authorKadıoğlu, Asım
dc.contributor.authorDemiralay, Mehmet
dc.contributor.authorTerzi, Rabiye
dc.date.accessioned2021-10-26T07:13:54Z
dc.date.available2021-10-26T07:13:54Z
dc.date.issued2014
dc.departmentAÇÜ, Orman Fakültesi, Orman Mühendisliği Bölümüen_US
dc.description.abstractEffects of leaf rolling (LR) on maize photosynthesis under severe drought stress were studied in two cultivars with opposite drought responses, Batem 56-55 (drought tolerant) and Batem 51-52 (drought sensitive). Drought stress and artificial prevention of leaf rolling (PLR) were applied at grain filling stage for 30 days. LR in Batem 56-55 occurred later than in Batem 51-52. Leaf water potential (Psi(leaf)) did not change in Batem 56-55 but decreased in Batem 51-52 at LR. Maximum quantum yield of photosystem II (F-v/F-m), effective quantum yield of photosystem II (Phi(PSII)) and electron transport rate (ETR) of the cultivars decreased during LR more significantly in Batem 56-55 in comparison to Batem 51-52. The same was observed for the decrease in net photosynthetic rate (P-N), stomatal conductance (g(s)), transpiration (E) and intracellular level of CO2 (C-1) Rubisco activity and content were reduced at LR, but were less affected in Batem 56-55 than in Batem 51-52. Ear and kernel weights also decreased at LR. All parameters at PLR were more reduced than those of LR. These results implied that LR was an important and necessary mechanism protecting photosynthesis and reducing yield loss under drought stress by maintaining the leaf hydration, preventing loss of the photosynthetic pigments, sustaining the activity of PSII, keeping the stomata open, and conserving the activity of Rubisco.
dc.identifier.citationSağlam, A., Kadıoğlu, A., Demiralay, M., & Terzi, R. (2014). Leaf rolling reduces photosynthetic loss in maize under severe drought. Acta Botanica Croatica, 73(2), 315-323.en_US
dc.identifier.doi10.2478/botcro-2014-0012
dc.identifier.endpage323en_US
dc.identifier.issn0365-0588
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage315en_US
dc.identifier.urihttps://hdl.handle.net/11494/3545
dc.identifier.volume73en_US
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherUniv Zagreben_US
dc.relation.ispartofActa botanica Croatica
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.relation.tubitakTBAG 110T472
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectDroughten_US
dc.subjectLeaf rollingen_US
dc.subjectMaizeen_US
dc.subjectPhotosynthesisen_US
dc.subjectYielden_US
dc.titleLeaf rolling reduces photosynthetic loss in maize under severe droughten_US
dc.typeArticle

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