Przebieg niektórych procesów fizjologicznych oraz plonowanie pszenicy ozimej i pszenżyta pod wpływem deszczowania i nawożenia azotem. Część I. Zawartość chlorofilu i karotenoidów w niektórych organach pszenicy ozimej i pszenżyta [Changes of some phisiological processes and yield of winter wheat and triticale under the influence of sprinkling irrigation and nitrogen fertilization. Part 1. Chlorophyll and carotenoid content in some organs of winter wheat and triticale]

Abstract

The aim of the field and laboratory study was to determine effects of nitrogen fertilization and sprinkling irrigation on chlorophyll and carotenoid content in the flag leaf, shank and spike of winter wheat and triticale cultivated on a sandy soil. Obtained results show that the applied treatments (nitrogen and sprinkling irrigation) significantly increased the yield of dry matter of the tested organs, and their chlorophyll and carotenoid content. Compared to winter wheat a higher concentration of the pigments was found in triticale. Sprinkling irrigation in high nitrogen fertilization inhibited the process of pigment decomposition of and hence the time of photosynthetic activity of the tested plants was extend.