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Pagina 110
A large temperature increase can lead to wide opening in the dark in a species
normally showing only a small opening (see below). However, there are some
plants where night opening apparently takes place to wide apertures. Loftfield(70
> ...
A large temperature increase can lead to wide opening in the dark in a species
normally showing only a small opening (see below). However, there are some
plants where night opening apparently takes place to wide apertures. Loftfield(70
> ...
Pagina 114
rhythm so that opening is reduced on the succeeding day. This difficulty can be
overcome by using a short night-interruption instead of a long-day treatment,
which does not appear to influence the subsequent behaviour of stomata.(72>
5.5 ...
rhythm so that opening is reduced on the succeeding day. This difficulty can be
overcome by using a short night-interruption instead of a long-day treatment,
which does not appear to influence the subsequent behaviour of stomata.(72>
5.5 ...
Pagina 115
range 3,000 to 13,000 lux during the photoperiod led to increased acidification at
night, and there was a corresponding increase in both the duration and the
magnitude of stomatal opening. Table 5.2 Acidity (cm3 of 0-05 N NaOH required
for ...
range 3,000 to 13,000 lux during the photoperiod led to increased acidification at
night, and there was a corresponding increase in both the duration and the
magnitude of stomatal opening. Table 5.2 Acidity (cm3 of 0-05 N NaOH required
for ...
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Inhoudsopgave
Chapter Morphology and Physiology of Stomatal Cells | 1 |
The Measurement of Stomatal Aperture | 26 |
The Theory of Diffusion Through Stomata | 49 |
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acid air space system blue light C02 concentration C02-compensation point C02-free air carbon dioxide cent changes in stomatal chlorophyll chloroplasts clamp cobalt chloride paper darkness density diameter diffusion path diffusive flow effective length elliptical energy epidermal cells epidermal strips evidence glycollate graminaceous guard cells guard-cell Heath hydrogen hydrolysis illumination leaf leaf discs leaves light intensity mannitol manometer measured Meidner mesophyll metabolic night opening normal number of stomata observations occur onion opening and closing oxygen permeability photophosphorylation photosynthesis plants plasmolysed porometer porometer cup pressure rate of diffusion rate of photosynthesis reaction reduced resistance to diffusion solution starch starch content stoma mother cell stomatal aperture stomatal apparatus stomatal behaviour stomatal control stomatal mechanism stomatal movements stomatal opening stomatal pores stomatal resistance stomatal tube subsidiary cells tissue turgor uptake ventral walls Vicia faba viscous flow porometer washers water deficit water vapour Wheatstone bridge Xanthium pennsylvanicum