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Effect of drought stress and polymer on osmotic adjustment and photosynthetic pigments of sunflower

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dc.contributor.author Nazarli, H.
dc.contributor.author Faraji, F.
dc.contributor.author Zardashti, M.R.
dc.date.accessioned 2022-04-18T07:13:22Z
dc.date.available 2022-04-18T07:13:22Z
dc.date.issued 2010-10-04
dc.identifier.citation Nazarli, H., F. Faraji, M.R. Zardashti. 2011. “Effect of drought stress and polymer on osmotic adjustment and photosynthetic pigments of sunflower”. Cercetări Agronomice în Moldova 44 (1): 35-41. en_US
dc.identifier.uri https://repository.uaiasi.ro/xmlui/handle/20.500.12811/2348
dc.description.abstract Water stress affects plant growth and crop productivity in the vast semi-arid and arid regions of Iran. The present study was aimed at investigating the effect of drought stress and super absorbent polymer (SAP) on the osmotic adjustment and carotenoid content of sunflower (cv. Master) under field condition. The experiment was carried out as a split plot based on randomized complete block design with three replications. Three irrigation levels (irrigation after 6, 10 and 14 days) and five amount of super absorbent polymer (SAP) (0, 75, 150, 225, 300 kg/ha) were set as main and sub factors, respectively. Polymer was added in fourteen leaves stage of sunflower to soil in deepness of roots development (by mixing with soil) and at this same stage drought stress was applied.The results showed that effect of different rates of super absorbent polymer and water stress in all traits were significant (P<0.001) as well as their interactive effect of two mentioned factors were significant (P <0.001).Drought stress significantly increased carotenoid content. Drought stress caused an increase in the concentration of soluble sugar and proline content in the leaves of sunflower. These results indicated that lowest amount in proline and soluble sugars accumulation were achieved at 300 kg ha-1 polymer compared with the control (without polymer) in all rates of water even under drought stress conditions.Our results showed that SAP can absorb and retain extremely large amounts of water, so protects the plants against drought. en_US
dc.language.iso en en_US
dc.publisher "Ion Ionescu de la Brad" University of Agricultural Sciences and Veterinary Medicine, Iași en_US
dc.subject sunflower en_US
dc.subject drought stress en_US
dc.subject polymer en_US
dc.subject proline en_US
dc.subject soluble sugar en_US
dc.title Effect of drought stress and polymer on osmotic adjustment and photosynthetic pigments of sunflower en_US
dc.type Article en_US
dc.author.affiliation H. Nazarli,M.R. Zardashti, Department of Agronomy and Plant breeding, Uremia University, Uremia, Iran
dc.author.affiliation F. Faraji, Department of Horticulture, Uremia University, Uremia, Iran
dc.publicationName Cercetări Agronomice în Moldova
dc.volume 44
dc.issue 1
dc.publicationDate 2011
dc.startingPage 35
dc.endingPage 41
dc.identifier.eissn 2067-1865


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