Gradients of the content of photosynthetic pigments and radiation as manifestations of the health condition of Norway spruce (Picea abies [L.] Karst.)
Zemanek, T.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Lesnicka a Drevarska Fakulta) | Martinkova, M.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Lesnicka a Drevarska Fakulta)E-mail:[email protected] | Sterbova, D.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Agronomicka Fakulta)
The distribution and quantities of chlorophyll a + b and carotenoids were determined in a sample tree of Picea abies in order to evaluate its health condition. The content of photosynthetic pigments (PhP) was determined by spectrophotometric analysis. The sample tree was situated at the Rajec nad Svitavou locality, the Drahany Upland, Czech Republic (altitude 625 to 640 m). It was shown that the inner coordination of the content of PhP in the crown in relation to the age of needles and their insolation was sufficient. Thus, the tree did not show impaired health condition and its growth retardation resulted from the short crown. The extent of the photosynthetic apparatus and stability of the tree would be increased particularly after elongation of the lower part of a crown, the so-called compensating part.
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