Published in Scientific Papers. Series B, Horticulture, Vol. LXVIV, Issue 1
Written by Svetlana STOYANOVA, Galina DYAKOVA, Ralitsa MINCHEVA, Evgeniya ZHEKOVA
The article shows the results of the influence of three soil herbicides: pendimethalin (Stomp New 330EK), s-metolachlor (Dual Gold 960EK) and pendimethalin and clomazone (Alcans Sync Tech) on the vegetative manifestations of the grafted vine cuttings. The study was carried out during the period 2018-2021, in the experimental vine rooting nursery of IASS "Obratzov Chiflik", with Siyana dessert variety. Dual Gold 960EK and Stomp New 330EK were found to have high selectivity, provide good control of annual weeds, do not suppress budding and do not reduce the vigor of the main shoot growth. The tested herbicides did not negatively affect the synthesis of photosynthetic pigments. Alcans Sync Tech caused a moderate to moderately strong phytotoxic effect, expressed in a chlorotic halo of the first leaves of the cuttings, which was overcome at a later stage and did not affect their development. Despite slight fluctuations in the values of the ratio of chlorophylls to carotenoids, there was no evidence of premature aging due to stress factors.
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