Physiology of StomataMcGraw-Hill, 1968 - 178 pagina's |
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Pagina 43
... hydrogen diffusion porometer ( 29 ) filled with hydrogen and thoroughly purged of all air - this is done by using the hydrogen cylinder supply . During this preparatory stage a gas escape vent , E , attached to the porometer cup is kept ...
... hydrogen diffusion porometer ( 29 ) filled with hydrogen and thoroughly purged of all air - this is done by using the hydrogen cylinder supply . During this preparatory stage a gas escape vent , E , attached to the porometer cup is kept ...
Pagina 44
Hans Meidner, Terence Arthur Mansfield. is filled with hydrogen , the gas escape vent is closed so that hydrogen can escape only by diffusion through the leaf ; this outward diffusion of hydrogen proceeds faster than the inward diffusion ...
Hans Meidner, Terence Arthur Mansfield. is filled with hydrogen , the gas escape vent is closed so that hydrogen can escape only by diffusion through the leaf ; this outward diffusion of hydrogen proceeds faster than the inward diffusion ...
Pagina 159
... hydrogen from a supply via tap B and out at tap A. Close both taps to the outside air and observe the changes in the manometer . Carry out the measurements at the beginning of illumination , and after forty and ninety minutes ; avoid ...
... hydrogen from a supply via tap B and out at tap A. Close both taps to the outside air and observe the changes in the manometer . Carry out the measurements at the beginning of illumination , and after forty and ninety minutes ; avoid ...
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