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Effects of Reddening of Cotton (Gossypium hirsutum L.) Leaves on Functional Activity of Photosynthetic Apparatus |
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| Authors: | Velikova V Tsonev T Edreva A Gürel A Hakerlerler H |
| Institution: | (1) Acad. M. Popov Institute of Plant Physiology, Bulgarian Academy of Sciences, Acad, G. Bonchev Street, Bl. 21, 1113 Sofia, Bulgaria;(2) D. Kostoff Institute of Genetics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;(3) Department of Bioengineering, Faculty of Engineering, Aegean University, 35100 Bornova, Turkey;(4) Department of Soil Science, Agricultural Faculty, Aegean University, 35100 Bornova, Turkey |
| Abstract: | Strong inhibition of rates of CO2 assimilation and transpiration, stomatal conductance, and water use efficiency as well as photosystem 2 (PS2) photochemical activity were related to the severity of reddening. The inhibition of photosynthesis in red cotton leaves was due to both decreased photochemical activity and stomatal limitation. Lowered photosynthetic capacity could be one of the main factors of reduced yield in reddening cotton. |
| Keywords: | chlorophyll fluorescence net photosynthetic rate stomatal conductance transpiration rate water use efficiency |
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