| 单词 | photosynthetic quotient |
| 释义 | > as lemmasphotosynthetic quotient photosynthetic quotient n. the rate of evolution of oxygen by photosynthesizing tissue divided by its rate of consumption of carbon dioxide, or the reciprocal of this. ΘΚΠ the world > plants > by nutrition or respiration > [noun] > photosynthesis > photosynthetic quotient photosynthetic quotient1926 photosynthetic ratio1931 1926 H. A. Spoehr Photosynthesis ii. 92 The photosynthetic quotient may yield some information relative to the first product formed in photosynthesis. 1945 E. I. Rabinowitch Photosynthesis I. iii. 31 The ‘photosynthetic quotient’, Qp : Qp = ΔO2/−Δ/CO2. (The term ‘photosynthetic quotient’ has been used by many authors..to designate the inverse ratio, −ΔCO2/ΔO2; this difference calls for care in the quotation of numerical results.) 1971 I. Zelitch Photosynthesis v. 129 At the high O2 concentrations, Amaranthus leaves had a photosynthetic quotient of 0·50 and bean leaves 0·33. 1996 Science (Nexis) 19 July 364 The observed photosynthetic quotient is expected if CO2 is reduced not only to the level of sugars. < as lemmas |
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