Fifteen apple cultivars registered in the Czech Republic were included in this comparative study. The most productive after eight years of cropping was ‘Rucla’, which had a mean yield of 50.9 t/ha. This cultivar was also the most tolerant to late spring frosts. In order of decreasing yields, it was followed by the cultivars ‘Rubinstep’, ‘King Jonagold’ and ‘Šampion’. The lowest yield was found for the cultivar ‘Fuji Nagafu’ (23.7 t/ha) followed by ‘Golden Delicious’ and ‘Rubinola’. The largest canopy volume in 2016 was achieved by ‘Rubín’ at a level of 2.74 m3, followed in decreasing order by ‘Rubinola’, ‘King Jonagold’ and ‘Meteor’. According to the final tree canopy volume, the least vigorous was ‘Selena’ with a mean of 1.50 m3. The largest canopy of 2.74 m3 was exhibited by ‘Rubín’. The ‘Braeburn’ cultivar exhibited the highest degree of spur bearing, followed by ‘Lady Silvia’ and ‘Vysočina’. In contrast, the poorest spur patterns were observed in ‘Rubín’ and ‘Fuji Nagafu’. ‘Meteor’ was characterised by the densest canopy, whereas the ‘Rubín’ cultivar was the least dense.
Aygun A., Sam B., Tarihi G. (2005): The late spring frost hardiness of some apple varieties at various stages of flower buds. Tarin Bilnleri Dergisi, 11: 283–285.
Barritt B.H., B. Konishi , M. Dilley (2008): PERFORMANCE OF FOUR HIGH DENSITY APPLE ORCHARD SYSTEMS WITH 'FUJI' AND 'BRAEBURN'. Acta Horticulturae, , 389-394 https://doi.org/10.17660/ActaHortic.2008.772.67
Blažek J. (2006): Yields and fruit quality of apple cultivars grown or tested in commercial orchards in Czech Republic. In: Proceeding from International conference International conference of perspectives in European fruit growing. Oct 18–20, 2006, Mendel University of Agriculture and Forestry in Brno: 47–63.
Blazek J. (2013): Comparative Study of Apple Cultivars Bred in Holovousy, Czech Republic. Journal of Plant Studies, 2, - https://doi.org/10.5539/jps.v2n2p113
Blažek J., Křelinová J. (2006): Seven-year orchard performance of eleven new apple cultivars from Holovousy in comparison with some commonly grown ones Horticultural Science (Prague), 33: 131–139.
Blažek J., Křelinová J. (2018): Apple cultivars bred in Holovousy. Part 1 – Characteristics of the orchard. Horticultural Science, 40, 8-15 https://doi.org/10.17221/131/2012-HORTSCI
Blažek J., Varga A. (2001): Tree vigour of new apple cultivars grown in the Czech Republic and some factors influencing it. Horticultural Science (Prague), 28: 130–137.
Crassweller R., McNew R., Greene D., Miller S., Cline J., Azarenko A., Barrit B., Barkett T., Brown S., Cowgill W., Fallahi E., Fallahi B., Garcia E., Hampson C., Lindstrom T., Merwin I., Obermiller J.D., Stasiak M., Greene G. (2007): Performance of apple cultivars in the 1999 NE-183 regional project planting. I. Growth and yield characteristics. Journal of American Pomological Society, 61: 84–96.
Fioravanço João Caetano, Czermainski Ana Beatriz Costa, Oliveira Paulo Ricardo Dias de (2016): Yield efficiency for nine apple cultivars grafted on two rootstocks. Ciência Rural, 46, 1701-1706 https://doi.org/10.1590/0103-8478cr20141754
Kosina J. (2018): Effect of dwarfing and semi dwarfing apple rootstocks on growth and productivity of selected apple cultivars. Horticultural Science, 37, 121-126 https://doi.org/10.17221/20/2010-HORTSCI
Lauri P.E., Laurens F. (2006): Architectural types in apple (Malus × domestica Borkh.). Growth, Quality and Biotechnology: 1300–1313.
Lipa T., Lipecki J., Janisz A., Dinkiewicz P. (2008): Effects of spring frosts in selected apple and pear orchards in the Lublin region in the years 2005 and 2007. Acta Agronomica, 61: 131–139.
Lespinasse J.M., Delort J.F. (1986): APPLE TREE MANAGEMENT IN VERTICAL AXIS: APPRAISAL AFTER TEN YEARS OF EXPERIMENTS. Acta Horticulturae, , 139-156 https://doi.org/10.17660/ActaHortic.1986.160.15
Mészáros M., Sus J., Laňar L., Náměstek J. (2015): Evaluation Of Slender Spindle Form In Young ‘Topaz’ Apple Orchard*. Scientia Agriculturae Bohemica, 46, - https://doi.org/10.1515/sab-2015-0032
Milatovic D., Durovic D. (2012): Growth and yield characteristics of new apple cultivars. Journal of Pomology, 46: 77–82.
Sosna Ireneusz (2014): Estimation Of Productive Value Of Czech Origin Scab-Resistant Apple Cultivars On Different Rootstocks. Journal of Horticultural Research, 22, - https://doi.org/10.2478/johr-2014-0028
Wright H., Nichols D., Embree C. (2006): EVALUATING THE ACCOUNTABILITY OF TRUNK SIZE AND CANOPY VOLUME MODELS FOR DETERMINING APPLE TREE PRODUCTION POTENTIAL ACROSS DIVERSE MANAGEMENT REGIMES. Acta Horticulturae, , 237-243 https://doi.org/10.17660/ActaHortic.2006.707.30