INFLUENCE OF THE SHOOTS REMOVAL ON YIELD AND MUST QUALITY INDICATORS OF THE VARIETY TRAMINER (V.vinifera L.)

Istraživanje je provedeno tijekom 2017. godine na pokušalištu Poljoprivrednog fakulteta u Osijeku, koji je smješten u vinogorju Đakovo na lokalitetu Mandićevac. Cilj ovog eksperimentalnog rada bio je utvrditi kako smanjeno opterećenje trsa, odnosno zahvat uklanjanja mladica utječe na kvantitativna svojstva kao što su urod, broj grozdova i masa grozda, te kvalitativna svojstva koja ubrajaju sadržaj šećera, ukupnu kiselost i realnu kiselost mošta sorte Traminac (Vitis vinifera L.). Pokus je postavljen na dva reprezentativna reda koji su predstavljali tretman i kontrolu s ukupno 50 pokusnih jedinica. Mjerenje parametara obavljalo se u nasadu vinove loze tijekom berbe i u laboratoriju za Voćarstvo, vinogradarstvo i vinarstvo na Poljoprivrednom fakultetu. Analizom varijance za sva ispitivana svojstva utvrđena je signifikantna razlika uvjetovana ampelotehničkim zahvatom uklanjanja mladica. Ovim pokusom došlo je do visoko značajnog smanjenja uroda i broja grozdova, znatnog povećanja sadržaja šećera, smanjenja ukupne kiselosti i povećanja realne kiselosti - pH mošta.Experiment was set up during 2017 on experimental field of Faculty of Agrculture in Osijek, which is situated in vineyard Đakovo on Mandićevac. The aim of this experimental work was to determine how the reduced load of vine, that is, removal procedure of the shoot affects on quantitative characteristics such as yield, number of clusters, its mass and qualitative characteristics which are amount of sugar, total acidity and real acidity of Traminer must variety (Vitis vinifera L.) The experiment was set up on two representative rows which presented treatment and control with the total of fifty experimental units. Parameter measurement took place in vine plantings during grape harvest and in Laboratory for Pomolology, Viticulture and Enology of Faculty of Agriculture. Variance analysis for all examined characteristics showed significant difference conditioned by ampelotechnological removal procedure of the shoot. This experiment led to highly significant yield decrease and decrease in number of clusters, substantial increase in amount of sugar, decrease of total acidity and increase of real acidity- pH value of must