Physiology of StomataMcGraw-Hill, 1968 - 178 pagina's |
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Pagina 36
... clamps that fulfil these requirements are shown in Fig . 2.4 ; clamp ( a ) is modelled after that designed by Spanner and Heath , ( 137 ) and clamp ( b ) is a simple version more suitable for field porometers . ( 82 ) upper chamber ...
... clamps that fulfil these requirements are shown in Fig . 2.4 ; clamp ( a ) is modelled after that designed by Spanner and Heath , ( 137 ) and clamp ( b ) is a simple version more suitable for field porometers . ( 82 ) upper chamber ...
Pagina 48
... clamp , shown diagrammatically in Fig . 2.12 has been made from a 20 cm disposable syringe . The sensor element can be positioned at different distances from the mouth of the clamp and calibration is therefore easy . The range of the ...
... clamp , shown diagrammatically in Fig . 2.12 has been made from a 20 cm disposable syringe . The sensor element can be positioned at different distances from the mouth of the clamp and calibration is therefore easy . The range of the ...
Pagina 157
... clamp at the ground - glass joint between readings . When the stomata are fairly wide open and the leaf transpires strongly , after about sixty to ninety minutes , refrain from detaching the porometer from the clamp and , while a ...
... clamp at the ground - glass joint between readings . When the stomata are fairly wide open and the leaf transpires strongly , after about sixty to ninety minutes , refrain from detaching the porometer from the clamp and , while a ...
Inhoudsopgave
MORPHOLOGY AND PHYSIOLOGY OF STOMATAL CELLS | 1 |
THE THEORY OF DIFFUSION THROUGH STOMATA | 49 |
STOMATAL RESPONSES TO ENVIRONMENTAL FACTORS | 69 |
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acid 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 intercellular space leaf light intensity liquid phase maize mannitol manometer Mansfield mbar measured mesophyll metabolic 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 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 walls water deficit water vapour Xanthium pennsylvanicum Zelitch