F. Atar, D. Güney, A. Bayraktar, N. Yıldırım, I. Turna
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SEASONAL CHANGE OF CHLOROPHYLL CONTENT (SPAD VALUE) IN SOME TREE AND SHRUB SPECIES
: Chlorophyll, which is of vital importance for living things, is the main active ingredient of photosynthesis, and the amount of chlorophyll in the plant can show very sensitive responses to various environmental factors, especially site conditions and plant species. In this in both periods. As a result of Duncan’s test, nine different groups occurred in May measurements and 15 different groups occurred in October measurements. While the average SPAD value was the highest (78.6 and 70.6, respectively) in Laurocerasus officinalis in both periods, the lowest was in Acer negundo (25.0) in May and Quercus hartwissiana (24.0) in October.