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Photosynthetic and stomatal responses of Larix kaempferi seedlings to short‐term waterlogging
Author(s) -
Terazawa Kazuhiko,
Maruyama Yutaka,
Morikawa Yasushi
Publication year - 1992
Publication title -
ecological research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.628
H-Index - 68
eISSN - 1440-1703
pISSN - 0912-3814
DOI - 10.1007/bf02348500
Subject(s) - photosynthesis , stomatal conductance , waterlogging (archaeology) , shoot , botany , transpiration , biology , agronomy , horticulture , ecology , wetland
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.