Physiology of StomataMcGraw-Hill, 1968 - 178 pagina's |
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Pagina 33
... porometer readings . Nevertheless , porometer results obtained with hypostomatous leaves give a reasonably valid picture of changes in stomatal resistance . Basically , all viscous flow porometers measure the rate at which air can be ...
... porometer readings . Nevertheless , porometer results obtained with hypostomatous leaves give a reasonably valid picture of changes in stomatal resistance . Basically , all viscous flow porometers measure the rate at which air can be ...
Pagina 38
... porometer . ( 2 ) The measurement of the rate of air flow through a leaf by timing with a stop - watch is still used in Alvim's porometer , which employs a sphygmomanometer ( blood pressure gauge ) , and in Meidner's hand porometer ( 82 ) ...
... porometer . ( 2 ) The measurement of the rate of air flow through a leaf by timing with a stop - watch is still used in Alvim's porometer , which employs a sphygmomanometer ( blood pressure gauge ) , and in Meidner's hand porometer ( 82 ) ...
Pagina 157
... porometer clamp and , if need be , it can be trimmed in its width with a razor blade ; it is not possible to trim its height . Leaf water content . With a simple resistance porometer and the attachment clamp shown in Fig . 2.4 held in a ...
... porometer clamp and , if need be , it can be trimmed in its width with a razor blade ; it is not possible to trim its height . Leaf water content . With a simple resistance porometer and the attachment clamp shown in Fig . 2.4 held in a ...
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