Hidroterminių sąlygų, sodmenų sandėliavimo būdo ir dirvožemio įtaka introdukuotų gluosnių (Salix L.) įsišaknijimui

Abstract

Rooting of the introduced willows ‘Gudrun’ (S. dasyclados Wimm. ‘Helga’ × S. viminalis L.), ‘Tora’ (Salix schwerinii E. L. Wolf × S. viminalis L.), ‘Tordis’ (Salix schwerinii E. L. Wolf × S. viminalis L.) × S. viminalis L.) in soils of different fertility was investigated in the short rotation plantation established in 2005– 2007. Arenosols was fertilized with sewage sludge compost (60 t/ha). Rooting of the willows depended upon the way of cutting storage, hydrothermal coefficient of the development phase and soil characteristics. In arenosols, under higher hydrothermal coefficient values, the number of successfully rooted cuttings was higher. Under conditions of lower hydrothermal coefficient values the rooting is determined by the way of cutting preparation and soil fertility. ‘Tora’ are more suitable for infertile soils, while ‘Gudrun’ and ‘Tordis’ requires more fertile soils. Cuttings not stored in the refrigerator are rooting better.