Comparison of photosynthetic pigment contents in stems and leaves of fruit trees: cherry, sweet cherry, common plum, and walnut tree
2007
Pilarski, J.,Polish Academy of Sciences, Krakow (Poland). Inst. of Plant Physiology | Tokarz, K. | Kocurek, M.,Swietokrzyska Academy, Kielce (Poland). Inst. of Biology
The investigations were carried out on current-year, 1-, 2-, 3-year old stems and leaves of fruit trees: cherry, sweet cherry, pear, common plum, and walnut. The content of chlorophyll a and b and the sum of the carotenoids were determined. In the examined species of trees, the content of chlorophyll increased with the age of stems, except the cherry tree, in which its content decreased. The ratio of the content of chlorophyll to that of carotenoids oscillated from 2 to 4. In the stems and leaves of the sweet cherry and the pear trees it was similar. In the common plum and walnut trees its value in the leaves was higher in comparison with that in the stems, and in the current-year stems of the cherry and plum trees it was grater in comparison with older year groups of stems. The results demonstrated that in most examined species bark chlorophyll content increased with the age of stems, the fact not reported in the literature before
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