engleski

Effects of different siol tillage systes on chloroplast pigments concentration in leavels winter wheat

The scope of this research was to detrmine concentration and dynamic of chloroplast pigments in the winter wheat leaves. The research for winter wheat after soybean crop rotation has been conducted at the North-eastern Croatia chernozem soil type during the period of 2001/2002 - 2003/2004, with following continuous soil tillage tretmants: CT -conventional soil tillage ; based on mouldboard ploughing ; DH - multiple pass diskharrowing ; and NT -no-tillage. The chloroplast pigments have been measured in four different phenophases after Feekes:: 4.0 ; 8.0 ; 10.5 and 11.1. The concntration of chlorophil "a" ; "b", karotenoides has been influenced by year, phenophase, interaction of year X phenophase and year x soil tillage on diferent significantleavel. The winter wheat yield at NT has been lower than CT and DH only in extremly dry year of 2003.

soil tillage; chloroplast pigments; winter wheat

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