Ovlivnění kvality školkařských výpěstků pomocí půdních kondicionérů

Abstract

In 2006, a field trial was established in two localities. The first one was in Lednice (district Břeclav) at the experimental plot of the Department of Breeding and Propagation of Horticultural Plants, the second one in Stařeč (district Třebíč). As model plants, Acer pseudoplatanus and Quercus robur were used. TerraCottem, Agrosil LR and Hydrogel were tested as soil conditioners. Both species were planted in each locality. The plants were planted out on plots with soil conditioners mentioned above in 4 variants (including the Control variant without soil conditioners) and in 3 replications. Phy­sio­lo­gi­cal parameters of plants were followed in the course of growing season using special equipment, viz. Porometer AP 4 (stomatal conductivity), SunScan AT (PAR) and Chlorophyllmeter CCM 200 (chlorophyll content index – CCI). Morphological parameters (i.e. length of shoots and dry mass of leafs) were measured to the end of the growing season. The obtained data were statistically analyzed using the program Statgraphics Plus. The best results were obtained in the variant with the soil conditioner Hydrogel. The soil conditioners showed a significant effect on both morphological and physiological parameters of experimental plants. Soil conditioners under study eliminated the influence of abiotic stressors on Acer pseudoplatanus and Quercus robur.