236
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11.5
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10.5
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9.5
9.0
3
2
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250
200
150
100
50
0
10
8
6
4
2
0
0
Vicia faba
60 1 20 180 240 300 360
Time [min]
L. Kappen et al.
Fig.ll.4. cO2 exchan§e and response of four single stomata to changes of VPD in light
(360llmol photons m- S-1 PAR), air temperature 16°C. (After Kappen et al. 1987)
was demonstrated in the reverse direction if VPD was decreased again (see
Fig. 11.4). Such a transient phase was found to a greater or lesser extent in
all species investigated so far (Aegopodium podagraria, Atropa belladonna,
Avena sativa, Betula pubescens, B. occidentalis, Rosa sp., Sambucus nigra,
CI>
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11.5
11.0
10.5
10.0
9.5
9.0
3
2
0
250
200
150
100
50
0
10
8
6
4
2
0
0
Vicia faba
60 1 20 180 240 300 360
Time [min]
L. Kappen et al.
Fig.ll.4. cO2 exchan§e and response of four single stomata to changes of VPD in light
(360llmol photons m- S-1 PAR), air temperature 16°C. (After Kappen et al. 1987)
was demonstrated in the reverse direction if VPD was decreased again (see
Fig. 11.4). Such a transient phase was found to a greater or lesser extent in
all species investigated so far (Aegopodium podagraria, Atropa belladonna,
Avena sativa, Betula pubescens, B. occidentalis, Rosa sp., Sambucus nigra,