Influence of growth biostimulators used for the production of vine planting material
Svetlana Stoyanova | Iliyana Petrova | Galina Dyakova | Ralitsa Mincheva
Growth biostimulators activate some physiological processes that increase the efficiency of the usage of nourishing substances, stimulate the development of plants and allow reduced fertiliser consummation. Most biostimulators are capable of reacting against the effect of biotic and antibiotic stresses as they increase the crop production of the cultures and represent an opportunity of growing quality and healthy food. The article affects the results of the influence of RadiCifo L24 and Euroradix over the growth and development of grafted cuttings in vine rootings. The study was carried out through the dessert seedlees grapevine variety 'Zornitsa' grafted over the Berlandieri × Riparia (SO4) pad. Before rooting, paraffin is applied to 2/3 of the stratified grafted cutting's length and is then immersed in a 2% solution of RadiCifo L24 (for 20 minutes) and Euroradix (for 5 minutes), after that the cuttings are rooted to 15-17 cm in depth (to the non-paraffined part). According to the biometrics rating (number of developed shoots, number of roots), the variant with the growth stimulator RadiCifo L24 seems to be a more effective method for the production of first-class vines of the 'Zornitsa' variety, thus it can be recommended for the production of vine planting material.
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