The physiology of photosynthesis / by Sir Jagadis Chunder Bose.

  • Jagadish Chandra Bose
Date:
1924
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Licence: In copyright

Credit: The physiology of photosynthesis / by Sir Jagadis Chunder Bose. Source: Wellcome Collection.

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    PAGB synthetic curve for C02-variation—The turning-point—Deter- mination of the photosynthetic coefficient—Effect of seasonal variation on coefficient . . • • • • • • IX3 CHAPTER XVI PHOTOSYNTHETIC EVOLUTION OF OXYGEN IN THE COMPLETE ABSENCE OF CARBON DIOXIDE Photosynthetic evolution of oxygen by Hydrilla in complete absence of supply of carbon dioxide—Photosynthesis of specimens in acid condition under increasing supply of carbon dioxide—Transloca- tion of the characteristic points in photosynthetic curve—Electric response of acid plants—Unreliability of method of C02-absorp- tion—Assimilatory and respiratory quotients—Assimilation of organic acids—Effect of increasing strengths of malic acid on photosynthesis—Possible use of product of internal respiration in photosynthesis CHAPTER XVII EFFECT OF VARIATION OF TEMPERATURE ON PHOTOSYNTHESIS Determination of the respiratory loss—Importance of accurate adjustment of temperature—Shock-effect caused by sudden variation—Determination of thermometric minimum for photo- synthesis— Phenomenon of accommodation — Thermometric minimum for autonomous pulsation—Determination of the optimum point for photosynthesis—Effect of intensity of light and of season—Photosynthetic curve under variation of tem- perature—Optimum point for various activities of plants— Determination of the temperature-coefficient of photosynthesis by the differential method . . . . . • .132 CHAPTER XVIII THE TONIC FACTOR IN PHOTOSYNTHESIS The effect of season on physiological activity—The tonic level—The Tonometer—Measurement of tonicity from the ratio of response to stimulus—Effect of season on photosynthesis—Induced change of the tonic level under seasonal variation—Effect of minute traces of chemical substances in modifying tonic condition—
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