The aim of the present study was to investigate the stress responses of the vegetative rootstock Gisela 5 after treatment with soil herbicides under the conditions of a model pot experiment. The following variants were set: 1. control (untreated); 2. pendimethalin – Stomp 33 ЕC – 400 ml/da; 3. isoxaflutole – Merlin 750 WG – 5,0 g/da; 4. oxyfluorfen – Goal 2Е – 200 ml/da. Investigations on the gas exchange rate and the chlorophyll fluorescence after herbicide treatment were carried out. The obtained results showed that the soil herbicides pendimethalin, isoxaflutole and oxyfluorfen had a negative impact on the gas exchange rate, lowering the maximal (Fm) and variable (Fv) chlorophyll fluorescence, which confirmed the existence of stress responses.
Stress presponses of the cherry dwarf rootstock Gisela 5 (Prunus cerasus L. x Prunus canescens L._ after treatment with soil herbicides: 1. Effect on the photosynthesis and chlorophyll fluorescence