Reflectance indices indicative of changes in water and pigment contents of peanut and wheat leaves

J. Peñuelas, Y. Inoue

    Research output: Contribution to journalArticleResearchpeer-review

    101 Citations (Scopus)

    Abstract

    Measurements of reflectance in visible and near-infrared spectral regions were made on detached leaves of two crop species of different leaf morphology, structure, and water content (peanut and wheat) throughout progressive desiccation. Relative water content (RWC) was well correlated with water index (WI) but even better with the ratio of WI and normalized difference vegetation index. RWC was also significantly correlated with structural independent pigment index indicative of carotenoids/chlorophyll ratio. New indication is thus provided to assess leaf water content and apply simple and fast radiometric techniques for plant water stress management.
    Original languageEnglish
    Pages (from-to)355-360
    JournalPhotosynthetica
    Volume36
    Issue number3
    DOIs
    Publication statusPublished - 1 Jan 1999

    Keywords

    • Arachis
    • Leaf desiccation
    • Normalized difference vegetation index
    • Relative water content
    • Structural independent pigment index
    • Triticum
    • Water index

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