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Fig. 5 | New Zealand Journal of Forestry Science

Fig. 5

From: Comparative studies of the response of larch and birch seedlings from two origins to water deficit

Fig. 5

Photosynthesis capacity of four species treated by two water treatments. a: Chlorophyll concentration (mg m-2), b: Photosynthetic rate (umol m-2 s-1), c: Transpiration rate (mmol m-2 s-1), d: Water use efficiency (g kg-1). PL: Prince Rupprecht’s larch, EL: eastern larch, WB: white birch, PB: paper birch, WW: well-watered seedlings shown by open bars, LW: low-watered seedlings shown by shaded bars. Asterisks above bars indicate significant difference between the two treatments, * difference at P < 0.05, ** difference at P < 0.01

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