Physiology of StomataMcGraw-Hill, 1968 - 178 pagina's |
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Pagina 66
... reducing transpiration rates are in- creased leaf temperatures and , possibly , reduced rates of ion uptake and translocation . ( 26 ) The cooling effect of transpiration varies , of course , with insolation and wind speed , but it is ...
... reducing transpiration rates are in- creased leaf temperatures and , possibly , reduced rates of ion uptake and translocation . ( 26 ) The cooling effect of transpiration varies , of course , with insolation and wind speed , but it is ...
Pagina 67
... reduce the rate of transpiration by causing partial closure of the stomata . PMA sprayed on leaves reduced transpiration of tobacco by 40 per cent ( 174 ) and that of cotton by 60 per cent ; ( 133 ) these reductions in transpiration ...
... reduce the rate of transpiration by causing partial closure of the stomata . PMA sprayed on leaves reduced transpiration of tobacco by 40 per cent ( 174 ) and that of cotton by 60 per cent ; ( 133 ) these reductions in transpiration ...
Pagina 99
... reduced photosynthesis . Effects of water deficits on photosynthesis . Since stomatal move- ments are so sensitive to changes in CO2 concentration , any change brought about by high water deficits on photosynthetic rate in the mesophyll ...
... reduced photosynthesis . Effects of water deficits on photosynthesis . Since stomatal move- ments are so sensitive to changes in CO2 concentration , any change brought about by high water deficits on photosynthetic rate in the mesophyll ...
Inhoudsopgave
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 antitranspirants blue light carbon dioxide cause stomatal closure cent changes in stomatal chlorophyll chloroplasts cm² CO₂ CO2 concentration CO2-compensation point CO2-free air cobalt chloride paper darkness degree of opening density diameter diffusion path diffusive flow effective length endogenous rhythms energy epidermal cells epidermal strips evidence experiments glucose-1-phosphate glycollate guard cells Heath hydrolysis illumination leaf light intensity liquid phase mannitol manometer Mansfield mbar measured mesophyll metabolic Mouravieff night opening normal observations occur onion opening and closing osmotic oxidative phosphorylation oxygen photophosphorylation photosynthesis plants plasmolysed porometer pressure rate of diffusion rate of photosynthesis reaction reduced resistance to diffusion shown solution Stålfelt's starch content stomatal aperture stomatal behaviour stomatal control stomatal mechanism stomatal movements stomatal opening stomatal pores stomatal resistance stomatal tube subsidiary cells temperature increase tissue turgor uptake Vicia faba water deficit water vapour Xanthium pennsylvanicum Zelitch