20.500.12556/DKUM-82701 Fiziološki in ekonomski vidiki izvedbe različne intenzivnosti zimske rezi pri češnji (prunus avium l.) magistrsko delo Physiological and economical aspects of different winter pruning intensities in sweet cherry (prunus avium l.) Na UKC Pohorski dvor Fakultete za kmetijstvo in biosistemske vede Univerze v Mariboru je bila v letih 2019 in 2020 v nasadu češenj sort 'Regina' in 'Kordia', cepljenih na podlago Gisela 5, izvedena raziskava s ciljem definirati vpliv intenzivnosti zimske rezi na kvalitativne in kvantitativne lastnosti pridelka v letu izvedbe in v letu po izvedbi ukrepa ter ovrednotiti ekonomičnost pridelave, vezano na omenjen ukrep. Obravnavanja v poskusu so predstavljala močno, standardno in šibko rez ter kontrolo. Šibka rez je predstavljala t. i. osvetlitveno rez, standardna je ob osvetlitveni vključevala še pomlajevanje lesa v višjih delih krošnje in izrezovanje šibkega rodnega lesa, močna rez pa dodatno še prikrajševanje enoletnih poganjkov na dve vegetativni očesi. Drevesa v kontrolnem obravnavanju niso bila porezana. Ugotovljeno je bilo, da se je v obeh letih izvajanja poskusa pri sorti 'Kordia' in v letu izvedbe rezi pri sorti 'Regina', skupni pridelek manjšal z večanjem intenzivnosti zimske rezi, ob tem pa so se povečali delež tržnih plodov, premer in masa 100 plodov. V letu po izvedeni rezi se je sorta 'Regina' odzvala drugače. Vpliv intenzivnosti zimske rezi na parametre notranje kakovosti ni bil konsistenten; pri sorti 'Kordia' intenzivnost rezi ni imela neposrednega vpliva na notranjo kakovost pridelka medtem ko je večja intenzivnost zimske rezi pri sorti 'Regina' v letu izvedbe ukrepa povečala notranjo kakovost pridelka. Ugotovili smo, da lahko z izvedbo intenzivnejše zimske rezi in zaradi njenega pozitivnega vpliva na povečanje premera plodov, ki je osnova za doseganje višje prodajne cene pridelka, ob pričakovani pomladitvi dreves kompenziramo delni izpad pridelka v letu izvedbe ukrepa. At the UAC Pohorski Dvor of the Faculty of Agriculture and Life Sciences, University of Maribor in 2019 and 2020 an experiment in a sweet cherry plantation of ‘Regina’ and ‘Kordia’ grafted on Gisela 5 rootstock was conducted with intention to study the effects of winter pruning intensity on quantity and quality of the yield in the year of pruning and the year after as well as determine the economic efficiency of the production. Four treatments represented severe, standard and light pruning and control. With light pruning the crown was thinned, with standard pruning in addition to crown thinning wood in the upper part of the crown was rejuvenated and poorly fruiting branches were thinned, with severe pruning additional shortening of one-year old shoots to two vegetative buds was performed. Control treatment was not pruned. It was determined that in both trial years in case of ‘Kordia’ and in the year of pruning in case of ‘Regina’, yield quantity decreased with intensification of winter pruning, on the other hand share of marketable fruit as well as fruit diameter and weight increased. In the year after performed pruning cv. ‘Regina’ responded differently. Effect of pruning on internal fruit quality was not consistent; in case of cv. ‘Kordia’ intensity of winter pruning had no effect on internal fruit quality while in case of cv. ‘Regina’ severe winter pruning improved all observed internal fruit quality parameters in the year of the performed measure. Based on obtained results regarding fruit diameter, which conditions fruit market value, we discovered they are positively linked therefore lower yield, due to more severe pruning, can be compensated. češnja rez pridelek kakovost ekonomičnost sweet cherry pruning yield quality economic feasibility true true false [N. Tojnko] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2022-08-30 12:57:24 2022-09-14 13:21:22 2022-09-15 03:13:28 0000-00-00 00:00:00 2022 0 Maribor 0 Maribor XII, 43 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 634.232:631.542.1:631.559(043)=163.6 121295619 MAG_Tojnko_Nina_2022.pdf MAG_Tojnko_Nina_2022.pdf 1 EF3A8258DD52838D6E34DA8EDB4F18C2 166439f97485a8ed0213cf0455ed6cd5414214a198bd107e9eab23d89d2ff142 a2bfbbf3-2854-11ed-9649-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=161209 Fakulteta za kmetijstvo in biosistemske vede 0 0 0