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Fig. 4 | Plant Methods

Fig. 4

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

Fig. 4

Spectral composition and distribution of the light sources. a Spectral response of neon tubes and neon tubes & LED together, without and with chamber foil. b PAR distribution of both lamp types (LED and neon tube) together and neon tube separately at three height levels (0 cm = chamber bottom plate, 30 cm = middle chamber position, 60 cm = top chamber). The plates give the interpolated mean values (bilinear) based on 5 × 5 measurement points. Round circles represent each plant chamber

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