Morfološka karakterizacija i kvalitativni pokazatelji potencijala genotipova Oblačinske i stepske višnje kao podloga za kalemljenje trešnje
2024
Narandžić, Tijana | Ljubojević, Mirjana | Čukanović, Jelena | Grubač, Milica | Pušić Devai, Magdalena | Milović, Maja | Barać, Goran
The challenges posed by climate change to cherry growers, coupled with the demand for environmentally sustainable and economically feasible production, have shifted attention towards indigenous plant genetic resources. These resources are being explored to select adaptable, low-vigor genotypes for establishing modern high-density orchards. The aim of this study was to assess the morphological variability and production quality of 27 potentially low-vigor rootstock candidates for sour and sweet cherry, selected from the germplasm of Prunus cerasus L. ecovar. ‘Oblačinska’ and Prunus fruticosa Pall. (European ground cherry). Morphological characterization of the genotypes, along with the analysis of uniformity, anchorage strength, and suckering tendency after grafting, revealed a high level of variability. Vigor ranged from extremely weak to strong. All three habitus types were identified within both species. The density of branching ranged from very sparse to very dense. In addition to plant characteristics, significant diversity was confirmed by substantial variation in the quantitative and qualitative attributes of the leaves. The dominant leaf blade shape was elliptical. Leaf blade length varied from 39.88 mm in ‘PF_06_15’ to 87.08 mm in ‘PC_06_03’, while leaf blade width ranged from 18.32 mm in ‘PF_06_15’ to 50.08 mm in ‘PC_04/1_01’. A satisfactory level of uniformity was observed in plants grafted onto most of the candidates. Among all candidates, 26% exhibited good, 59% very good, and 15% excellent anchorage strength. The majority of the rootstock candidates (52%) formed a small number of suckers, while 15% exhibited moderate suckering tendency.
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