SEASONAL DYNAMICS OF SUGARS IN THE LEAVES OF Salix dasyclados AND THE EFFECT OF SOIL TREATMENT WITH CEMENT DUST
نویسندگان
چکیده
Cutting-derived Salix dasyclados Wimm. were grown on soil containing high amounts (2 kg m in year 1 + 1 kg m in year 2) of dust from filters of a cement plant. The pH of the treated soil was increased from 6.5 (control) to 7.6. Soluble sugars, starch, and chlorophylls in leaves of spring flush shoots were analysed during the vegetative growth of the second year of treatment. The lower hexose content in the leaves of treatment trees was approximately balanced by their higher sucrose content. Maltodextrins and starch were not affected significantly and no fructans were found. The effect of treatments on chlorophyll a and b was neglible. Total biomass was significantly lower than in control trees without any change in the partitioning of biomass between different parts of the trees.
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