חיפוש מתקדם
Plant and Soil
Plaut, Z., USDA, ARS, U.S. Salinity Laboratory, 4500 Glenwood Drive, Riverside, 92501, CA, United States
Grieve, C.M., USDA, ARS, U.S. Salinity Laboratory, 4500 Glenwood Drive, Riverside, 92501, CA, United States
The CO2 fixation rate of salt-stressed maize leaves was influenced by the Ca:Na ratio in the solution cultures. At an osmotic potential of -0.4 MPa in the root media, both the photosynthetic rate and the water-use efficiency declined as substrate Ca increased. Blade-Ca concentration also increased, while blade-Na and-Mg decreased. Apparently photosynthetic activity was inhibited in part by internal Mg deficiency rather than by Na toxicity or by Na-induced Ca deficiency. Reduction of the Ca:Mg ratio in the culture stimulated the CO2 fixation rate. © 1988 Martinus Nijhoff Publishers.
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הספר "אוצר וולקני"
אודות
תנאי שימוש
Photosynthesis of salt-stressed maize as influenced by Ca:Na ratios in the nutrient solution
105
Plaut, Z., USDA, ARS, U.S. Salinity Laboratory, 4500 Glenwood Drive, Riverside, 92501, CA, United States
Grieve, C.M., USDA, ARS, U.S. Salinity Laboratory, 4500 Glenwood Drive, Riverside, 92501, CA, United States
Photosynthesis of salt-stressed maize as influenced by Ca:Na ratios in the nutrient solution
The CO2 fixation rate of salt-stressed maize leaves was influenced by the Ca:Na ratio in the solution cultures. At an osmotic potential of -0.4 MPa in the root media, both the photosynthetic rate and the water-use efficiency declined as substrate Ca increased. Blade-Ca concentration also increased, while blade-Na and-Mg decreased. Apparently photosynthetic activity was inhibited in part by internal Mg deficiency rather than by Na toxicity or by Na-induced Ca deficiency. Reduction of the Ca:Mg ratio in the culture stimulated the CO2 fixation rate. © 1988 Martinus Nijhoff Publishers.
Scientific Publication
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