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dc.contributor.authorBijanzadeh, Ehsan
dc.contributor.authorBarati, Vahid
dc.contributor.authorEmam, Yahya
dc.contributor.authorPessarakli, Mohammad
dc.date.accessioned2019-11-13T23:52:05Z
dc.date.available2019-11-13T23:52:05Z
dc.date.issued2019-10-28
dc.identifier.citationEhsan Bijanzadeh, Vahid Barati, Yahya Emam & Mohammad Pessarakli (2019) Assessment of the Crop Water Stress Index and Color Quality of Bur Clover (Medicago polymorpha L.) Under Different Irrigation Regimes, Communications in Soil Science and Plant Analysis, DOI: 10.1080/00103624.2019.1679166en_US
dc.identifier.issn0010-3624
dc.identifier.doi10.1080/00103624.2019.1679166
dc.identifier.urihttp://hdl.handle.net/10150/635650
dc.description.abstractRelationship between canopy temperature and soil moisture is important for using the potential of canopy temperature as an indicator of crop water stress. A two-year field experiment was carried out during June to September 2016 and 2017 at the Research Station of College of Agriculture, Darab, Shiraz University, Iran, to determine crop water stress index (CWSI) for bur clover. Irrigation regimes including well-watered [Irrigation according to 100% field capacity (FC)], mild water stress (75% FC), severe water stress (50% FC), and most severe water stress (25% FC) were arranged in a randomized complete block design with four replications. In 2016, CWSI values showed an increasing trend from June (0.066 in well-watered) to August (0.821 in most severe water stress) as a result of higher vapor pressure deficit (VPD) and depression in canopy-air temperature differences (Tc-Ta). A similar trend was observed in the second year. In both years, by increase in mean temperature from June to August, Tc-Ta differential increased and the highest monthly average value of CWSI for all treatments was obtained in August. By enhancing water stress, the color grading score decreased sharply (from 6 to 3) and stayed constant (2) for August and September. Also, a negative relationship was observed between CWSI and dry matter production (R-2 = 0.88**) and color quality (R-2 = 0.94**). It was concluded that mild water stress (75% FC) with mean seasonal CWSI being ranged about 0.198 to 0.294, without any loss in visual color quality might be the best irrigation regime for bur clover production.en_US
dc.language.isoenen_US
dc.publisherTAYLOR & FRANCIS INCen_US
dc.rights© 2019 Taylor & Francis Group, LLC.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectCanopy temperatureen_US
dc.subjectcolor qualityen_US
dc.subjectwater stressen_US
dc.subjectirrigation schedulingen_US
dc.titleAssessment of the Crop Water Stress Index and Color Quality of Bur Clover (Medicago polymorpha L.) Under Different Irrigation Regimesen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Sch Plant Scien_US
dc.identifier.journalCOMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSISen_US
dc.description.note12 month embargo; published online: 28 October 2019en_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal accepted manuscripten_US
dc.source.beginpage1-11


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