Summary
The effects of growth and measurement temperatures and sulphur nutrition on the CO2 assimilation rates of Hordeum vulgare L. cv Olli, Pisum sativum L. cv Dark Skin Perfection, and Brassica campestris L. cv Arlo, were investigated in controlled environments. Plants were grown at day/night temperatures of 18/10, 24/16, and 29/21°C and S levels of 0 and 64 ppm. CO2 assimilation rates were determined 30 days from seeding, at 18, 24, and 29°C.
Plants grown at all temperature regimes with 64 ppm S had significantly greater CO2 assimilation rates than those grown without applied S, in all three species. The response to S nutrition produced the same trend at the three measurement temperatures for a particular species, although there were differences in the magnitude of the responses. The magnitude of S effects on CO2 assimilation rates was dependent on the temperature at which the plants were grown, the temperature at which assimilation rates were determined, and on plant species.
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Herath, H.M.W., Ormrod, D.P. Temperature and sulphur nutrition effects on the CO2 assimilation rates of barley, peas and rape. Plant Soil 38, 525–530 (1973). https://doi.org/10.1007/BF00010692
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DOI: https://doi.org/10.1007/BF00010692