Redčenje sorte `Pinova´ v intenzivnih nasadih jablane (Malus domestica Borkh.)

Juhart, Jan (avtor), Štampar, Franc (mentor)

Pri intenzivni tehnologiji pridelave jablane je redčenje eden izmed ključnih tehnoloških ukrepov. Namen magistrske naloge je ugotoviti vpliv redčenja na kakovost plodov sorte 'Pinova'. Poskus smo izvajali v Hortikulturnem centru Biotehniške fakultete Orehovlje. V poskus smo vključili dve obravnavanji: kontrolo in redčenje s pripravkom Exilis (6-benziladenin - BA) v odmerku 8 l/ha, ki smo ga opravili 7. 5. 2021. Kemično redčenje sorte 'Pinova' ni bilo uspešno, saj je bilo število plodov/drevo enako številu plodov pri kontroli. Menimo, da so slabe vremenske razmere po redčenju vplivale na slabo učinkovitost redčenja. V poskusu smo prešteli število plodov/drevo, stehtali pridelek/drevo in ga razvrstili v 1. in 2. kakovostni razred. Plodovom smo izmerili dimenzije ploda, maso ploda, trdoto mesa, vsebnost topne suhe snovi, določili škrob po škrobni lestvici ter izmerili parametre osnovne in krovne barve. Ugotovili smo, da med vsemi izmerjenimi parametri ni bilo statistično značilnih razlik med kontrolo in obravnavanjem, kjer smo drevesa kemično redčili. Vzrok za takšne rezultate poskusa so nizke temperature v maju (povprečno 15 °C), suša in visoke temperature v juniju, juliju in avgustu ter nedostopna voda za namakanje, ki so močno vplivali na količino in kakovost plodov.

• Jezik: Slovenski jezik
• Ključne besede: sadjarstvo, redčenje, jablana, Malus domestica, intenzivni nasad, kakovost, pridelek
• Vrsta gradiva: Magistrsko delo/naloga
• Tipologija: 2.09 - Magistrsko delo
• Organizacija: BF - Biotehniška fakulteta
• Kraj izida: Ljubljana
• Založnik: [J. Juhart]
• Leto izida: 2021
• PID: 20.500.12556/RUL-131481
• UDK: 634.11:631.542.27:631.559(043.2)
• COBISS.SI-ID: 78208003
• Datum objave v RUL: 28.09.2021

JUHART, Jan, 2021, Redčenje sorte `Pinova´ v intenzivnih nasadih jablane (Malus domestica Borkh.) [na spletu]. Magistrsko delo. Ljubljana : J. Juhart. [Dostopano 21 avgust 2025]. Pridobljeno s: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=slv&id=131481

Sekundarni jezik

• Jezik: Angleški jezik
• Naslov: Fruit thinning of cultivar `Pinova´ (Malus domestica Borkh.) in intensive apple orchards

Izvleček

In intensive apple orchards, thinning is one of the key technological measures. The purpose of the master thesis was to determine the effect of thinning on fruit quality of cultivar 'Pinova'. The experiment was performed at the Horticultural Center of the Biotechnical Faculty in Orehovlje. Two treatments were included in the experiment: control and chemical thinning with Exilis (6-benzyladenine - BA) at a dose of 8 l/ha, which was carried out on 7th May 2021. Chemical thinning of the variety 'Pinova' was not successful because the number of fruit/tree was equal to the number of fruit/tree in the control. We believe that poor weather conditions after chemical thinning affected the poor thinning efficiency. In the experiment, we counted the number of fruit/tree, weighed the yield/tree and classified it into 1st and 2nd quality class. Fruit dimensions, fruit weight, fruit firmness, soluble solids content were measured, starch was determined according to the starch scale, and the parameters of ground and cover colour were measured. We found that there were no statistically significant differences between control and treatment, where the trees were chemically thinned, in all measured parameters. Such experimental results are due to low temperatures in May (average 15 °C), drought and high temperatures in June, July and August, and inaccessible irrigation water, which greatly affected fruit quantity and quality.

• Ključne besede: fruit growing, thinning, apple tree, Malus domestica, intensive orchard, quality, yield