THE INFLUENCE OF THE ROOTSTOCKS ON THE VINE TRUNK DIAMETER AND THE ANNUAL INCREMENT WOOD ,ASSOF DIFFERENT GRAPE VARIETES (Vitis vinifera L.)

Abstract

Bujnost trsa najčešće je sortno obilježje, dok utjecaj na bujnost imaju okolinski čimbenici i tehnološki zahvati. Primarni cilj u tehnologiji uzgoja vinove loze je postizanje ravnoteže između vegetativnog (bujnosti) i generativnog (rodnosti) potencijala. Jedino balansom između bujnosti i rodnosti je moguće postići najvažnije sortne odlike. Cilj ovog istraživanja bio je utvrditi utjecaj različitih podloga na promjer stabla te masu orezane rozgve kod sedam sorata vinove loze. Istraživanje je provedeno na pokušalištu Mandićevac, koje se nalazi nedaleko od vinarije Đakovačka vina d.d. U vinogradu, od moguća 64 reda, slučajnim odabirom, iz svakog reda se izuzelo po 15 uzoraka. Za izmjeru promjera stabla korištena je fizikalna metoda određivanja pomoću pomičnog mjerila, između dva ostavljena pupa. Dobivene vrijednosti su izražene u milimetrima. Za drugi dio istraživanja koristila se vaga. Na osnovu dobivenih rezultata, utvrdilo se kako statistički značajne razlike nema kod sorata Frankovka, Merlot i Rajnski rizling, dok nasuprot njima, kod sorata Graševina, Sauvignon bijeli, Chardonnay, Traminac, podloge uzrokuju statistički značajnu varijabilnost. Za svojstvo količina mase orezane rozgve ne postoji značajna razlika za iste sorte.Luxuriance of grapevine is mostly genotype, while effect on luxurance has enviromental conditions and technique methods. Prime objective in technology of grapevine is achievment of balance between vegetative (luxuriance)and generative (cropping) potential. Only with balance between luxuriance and generative is possible to achieve most important sort features. Objective of this research was to determine effects of different rootstocks on grape tree diameter and matter of pruned grapevine on seven sorts of grapevine. Research was conducted on Mandićevac experimental ground near winery of Đakovo wines d.d. In grapeyard of possible 64 rows, by random selection, is taken around 15 samples. For measurments diameter of grape tree, physical method was used for determination with shifting measurer, between two buds witch two are left. Given values are expressed in mm. For the other part of the research beam scale was needed. On basis of current results it is statisticly determined that there is no significant variability, with sorts of Frankovka, Merlot and Rajnski rizling while contrary to them with sorts of Graševina, Suvignon white, Chardonnay and Traminac rootstock are showing statisticaly significant variability. For feature of mass pruned grapes there is no significant difference for the sorts