Photosynthetic and stomatal responses of Larix kaempferi seedlings to short-term waterlogging

Kazuhiko Terazawa, Yutaka Maruyama, Yasushi Morikawa

    Research output: Contribution to journalArticle

    26 Citations (Scopus)

    Abstract

    The effects of short-term waterlogging on net photosynthesis, stomatal conductance and shoot water status of 2 year old seedlings of Larix kaempferi (Lamb.) Carr. were studied under controlled environmental conditions. Waterlogging for 8 days induced significant stomatal closure and reduced net photosynthesis. After 3 days of waterlogging, stomatal conductance was reduced to 35% of that of non-waterlogged plants, and net photosynthesis was reduced to 25% of the pre-waterlogged level. At the beginning of waterlogging, slight shoot dehydration was observed. However during the latter stage of the waterlogging shoot dehydration disappeared and stomatal conductance and net photosynthesis increased. No adaptive morphological changes to waterlogging were observed in the stems and roots. Recovery of stomatal conductance and net photosynthesis after drainage was not observed within 11 days.

    Original languageEnglish
    Pages (from-to)193-197
    Number of pages5
    JournalEcological Research
    Volume7
    Issue number2
    DOIs
    Publication statusPublished - 1992 Aug

    Keywords

    • Larix kaempferi
    • net photosynthesis
    • stomatal conductance
    • water relations
    • waterlogging

    ASJC Scopus subject areas

    • Ecology

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