| Popis: |
A field trial was carried out to study the role of the disturbed irrigation regime in the production of vine propagation material in the period 2011-2015, with the following options: V1 - 50% of the calculated irrigation rate (CIR); V2 - 75% of CIR; V3 - 100% of CIR, V4 - 125% of CIR and V5 - Control (60 cm depth of the active soil profile). Cuttings of Muscat Kailashki variety grafted on Berlandieri X Riparia SO4 rootstock were subjected to the study. Their rooting was done according to the technology adopted by IVE - Pleven (without mulching the beds with polyethylene foil). The growth dynamics of the grafted cuttings in the nursery was monitored The obtained results showed that the irrigation rates below 100% of CIR, based on the root system development, had reduced the annual growth of the grafted cuttings; an increase in irrigation rates above the conventionally accepted optimum of 100% of CIR, espectively by 125% of CIR and the Control variant, had not affected the shoots’ growth. |
