Estimation of the Quantum Efficiency of Photosynthesis. I. Theoretical Ground and Experimental Approaches
نویسندگان
چکیده
All preceding investigations on the quantum efficiency of photosynthesis, starting with the early experiments of Warburg and Negelein (1922a, b) and Emerson and Lewis (1939, 1941) are performed under low irradiances, even under light compensation point, assuming that the photosynthetic “light curves” are linear and the quantum efficiency of photosynthesis is maximum under these conditions. However, as it was shown in our investigations (Zeinalov, 1977a, b; Zeinalov and Maslenkova, 1980, 1996) “light curves” of photosynthesis are non-linear or “S”-shaped. In this work a special polarographic oxygen electrode system is described allowing irradiation with background light, and some principal problems existing in the experiments dealing with the maximum value of photosynthetic quantum efficiency are considered.
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