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Fig. 6 | Plant Methods

Fig. 6

From: The Tree Drought Emission MONitor (Tree DEMON), an innovative system for assessing biogenic volatile organic compounds emission from plants

Fig. 6

Overview on gas exchange and soil water content during the drought experiment. Gas exchange of sweet chestnut trees (#1 to #4) and soil water content during the drought stress experiment a mean total emission rate EM standardized to 30 °C and 1000 µmol m−2 s−1, b mean volumetric soil water content SWC. The horizontal black line marks the SWC value where plant gas exchange start to show a response to drought. c Mean transpiration rate E; d mean net photosynthesis rate A. Error bars represent the standard error of the daytime mean (N = 4). Horizontal grey bars indicate the day after watering was stopped for plants in the drought stress variant

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