LIMITING FACTORS IN PHOTOSYNTHESIS: LIGHT AND CARBON DIOXIDE
نویسندگان
چکیده
منابع مشابه
Limiting Factors in Photosynthesis: Light and Carbon Dioxide
1. Extensive measurements have been obtained (a) relating photosynthesis and light intensity for a large range of CO(2) concentrations and (b) relating photosynthesis and CO(2) at different light intensities. From these families of curves, the limiting factor relationship can be secured for any value of the photosynthesis rate. 2. In terms of previous work an equation has been derived for descr...
متن کاملPhotosynthesis in Relation to Light and Carbon Dioxide.
significant differences in the moments of arrival by changing the position of the electrodes up and down the two nerve fibres. Whereas the mechanical record (isotonic and isometric) show no noticeable differences and the inhibition was complete for any position of the electrodes, the size of the action currents varied from being quite unaffected up to a reduction of more than 50%. The figure sh...
متن کاملThe Influence of Light and Carbon Dioxide on Photosynthesis
1. An optical system is described which furnishes an intensity of 282,000 meter candles at the bottom of a Warburg manometric vessel. With such a high intensity available it was possible to measure the rate of photosynthesis of single fronds of Cabomba caroliniana over a large range of intensities and CO(2) concentrations. 2. The data obtained are described with high precision by the equation K...
متن کاملEffects of Light, Carbon Dioxide, and Temperature on Photosynthesis, Oxygen Inhibition of Photosynthesis, and Transpiration in Solanum tuberosum.
Individual leaves of potato (Solanum tuberosum L. W729R), a C(3) plant, were subjected to various irradiances (400-700 nm), CO(2) levels, and temperatures in a controlled-environment chamber. As irradiance increased, stomatal and mesophyll resistance exerted a strong and some-what paralleled regulation of photosynthesis as both showed a similar decrease reaching a minimum at about 85 neinsteins...
متن کاملThe Chlorophyll-carbon Dioxide Ratio during Photosynthesis
Using a rapid spectrographic method of carbon dioxide measurement previously described by McAlister (1937) further studies on the time course of photosynthesis in the higher plant, wheat, variety Marquis, are herein reported. Of major importance in this work is the discovery of a pick-up of carbon dioxide in darkness immediately following a high rate of photosynthesis (see Figs. 3 and 4). This ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1938
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.22.1.21