Biologia Plantarum · 2005 · 227 citations · 22 references
Life SciencesPlant BiologyPlant SciencesPhotosynthesisPlant EcophysiologyPlant PhysiologyDrought PhysiologyDrought Stress PhysiologyDrought TolerancePhotosynthesis In CropsPhotosynthetic Energy ConversionPlant Gas ExchangeDrought Effects On PhotosynthesisDrought StressIntercellular Carbon Dioxide ConcentrationPhotochemical EfficiencyPhotosynthetic RatePhotosynthetic Responses To DroughtPlant Water PotentialWater Stress Physiology
Changes in plant growth, photosynthetic gas exchange, chlorophyll fluorescence and stem diameter of soybean [Glycine max (L.) Merr.] plants under drought stress were studied. Total plant dry mass was reduced by 30 % compared to well-watered control plants. Leaf water potential was slightly decreased by water stress. Water stress induced daytime shrinkage and reduced night-time expansion of stem. Photosynthetic rate, stomatal conductance and transpiration rate were significantly declined by water stress, while the intercellular CO2 concentration was changed only slightly at the initiation of stress treatment. The maximum photochemical efficiency of photosystem 2 and apparent photosynthetic electron transport rate were not changed by water stress.
22
Stomatal Conductance and Photosynthesis
Graham D. Farquhar, Thomas D. Sharkey · Annual Review of Plant Physiology · 1982 · 4.2K citations · Full text