Evaluation of grain yield components in selected winter wheat cultivars

This thesis deals with the yield ability of chosen winter wheat varieties during growing season 2014/2015. Comparison of the two varieties (hybrid and linear). The experiment was established in standard and reduced seed rates and also in four replicates on the plot of Faculty of Agriculture, University of South Bohemia in České Budějovice. Were examined yield components: the amount of spikes per 1 m2, amount of grains per spike and weight of thousand grains. During the vegetation observed were the amount of plants per 1 m2, each growth phase, the number of stalks per 1 m2 and plant height. Furthermore, measured were amounts of units of chlorophyll in plants using device N-Tester and the SunScan device sunlight usable for photosynthesis of plants wherein the processed values of leaf area index (LAI). At the end, compared were the theoretical and real yield and evaluated were spike length, amount of spikelets in spike and density