Illumination-Independent Reflectance Information Acquirement for Leaf Water Potential Measurement on the Example of Satsuma Mandarin

A tétel rövid nézete
dc.contributor.authorKriston-Vizi, J.
dc.contributor.authorUmeda, M.
dc.contributor.authorMiyamoto, K.
dc.contributor.authorFerenczy, A.
dc.date.accessioned2021-06-28T09:58:41Z
dc.date.available2021-06-28T09:58:41Z
dc.date.issued2003-10-20
dc.description.abstractMandarin fruit sugar content can be increased when subjecting the satsuma mandarin tree (Citrus unshiu MARC. var. satsuma) to moderate water stress by mulching during the period of active sugar accumulation, thereby fruit quality improvement can be realized. In the frame of the precision agriculture production system, a non-destructive measuring method development became necessary based on remote sensing, field spectroscopy and image analysis, to be able to measure the degree of water stress. Large amount of visual information have been recorded at ground level, in near infrared, red and green channels by a false color digital camcorder designed specially for remote sensing applications. A method have been found to be able to calculate the absolute reflection of mandarin leaf surface by comparing leaf reflectance with known reference target reflectance, thereby established the basis of further studies in this topic. Leaf absolute reflection can be measured reliably, under variable natural illumination at field conditions. Functional correlation can be searched between visual information and leaf water potential measured by PMS pressure chamber.en
dc.formatapplication/pdf
dc.identifier.citationInternational Journal of Horticultural Science, Vol. 9 No. 3-4 (2003) , 75-79.
dc.identifier.doihttps://doi.org/10.31421/IJHS/9/3-4/409
dc.identifier.eissn2676-931X
dc.identifier.issn1585-0404
dc.identifier.issue3-4
dc.identifier.jatitleInt. j. hortic. sci.
dc.identifier.jtitleInternational Journal of Horticultural Science
dc.identifier.urihttps://hdl.handle.net/2437/314215en
dc.identifier.volume9
dc.languageen
dc.relationhttps://ojs.lib.unideb.hu/IJHS/article/view/409
dc.rights.accessOpen Access
dc.subjectimage analysisen
dc.subjectprecision agricultureen
dc.subjectremote sensingen
dc.subjectmandarinsen
dc.subjectsatsumasen
dc.subjectfield spectroscopyen
dc.titleIllumination-Independent Reflectance Information Acquirement for Leaf Water Potential Measurement on the Example of Satsuma Mandarinen
dc.typefolyóiratcikkhu
dc.typearticleen
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