Year 2015, Volume 61 Issue 4

Year : 2015
Volume : 61
Issue : 4
   
Authors : Vladan POPOVIC, Tatjana CIRKOVIC-MITROVIC, Aleksandar LUCIC, Ljubinko RAKONJAC
Title : EFFECT OF FERTILIZERS ON CONCENTRATION OF PHOTOSYNTHETIC PIGMENTS IN LEAVES OF ONE-YEAR-OLD SEEDLINGS OF WALNUT (Juglans regia L.)
Abstract : The effect of three different fertilizers on concentration of photosynthetic pigments in leaves of one-year-old seedlings of walnut (Juglans regia L.) has been studied in the nursery conditions. Three types of pigments have been examined: chlorophyll a, chlorophyll b and carotenoids as well as the total concentration of chlorophyll a and b. The trial was set up in random block system with three types of fertilizers and a control in three replications in the nursery of Institute of forestry in Belgrade in 2013. The leaf sampling was carried out in the middle of the growing season. The highest concentration of photosynthetic pigments was found in the leaves of seedlings treated with the preparation Bactofil B 10 and the lowest in the seedlings treated with mineral fertilizer NPK 15:15:15. The highest mean value had chlorophyll b (0,486 mg/g) in treatment Bactofil B 10 and the lowest mean value had carotenoids (0,165 mg/g) in treatment NPK 15:15:15. Research showed that the concentration of photosynthetic pigments in leaves of walnut seedlings varied depending on the fertilizer that was applied. Based on the obtained results it can be concluded that the proper fertilizer can increase the concentration of photosynthetic pigments in leaves and therefore the intensity of photosynthesis which contributes to increasing the biomass production
For citation : Popovic, V., Cirkovic-Mitrovic, T., Lucic, A., Rakonjac, Lj. (2015): Effect of fertilizers on concentration of photosynthetic pigments in leaves of one-year-old seedlings of walnut (Juglans regia L.). Agriculture and Forestry, 61(4): 243-247.
Keywords : Walnut, fertilizer, photosynthetic pigments, leaves
   
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