Cold hardiness of peach flowers at different phenological stages

László Szalay, Imre Gergő Gyökös and Zsuzsanna Békefi
Additional contact information
László Szalay: Department of Pomology, Faculty of Horticultural Sciences, Szent István University, Budapest, Hungary
Imre Gergő Gyökös: SZET Township Innovation Ltd., Szentgotthárd, Hungary
Zsuzsanna Békefi: NARIC Fruit Research Institute, Budapest, Hungary

Horticultural Science, 2018, vol. 45, issue 3, 119-124

Abstract: At the colder peach production regions it is important to know the cold hardiness of peach cultivars at different phenological stages of flowering. In our experiment, artificial freezing tests were conducted in a climate chamber in five selected years between the period of 2007 and 2016 to determine the freeze tolerance of generative organs of three peach cultivars ('Venus', 'Redhaven', 'Piroska') at different phenological stages of bloom. Based on the results of the laboratory freezing tests LT50 values were calculated. Our results showed that LT50 values of examined peach cultivars in swelled bud stage averaged over five years were between -6.8 and -11.2°C according to cultivar, and as phenological phases progressed, cold hardiness of generative organs decreased. At the end of bloom LT50 values varied between -1.7 and -4.1°C. Cultivar 'Piroska' had the highest freeze tolerance and cultivar 'Venus' showed the lowest in each year studied. This study shows that trees with delayed development are more prone to cold damage to flowers.

Keywords: LT50 values; artificial freezing test; blooming time (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://hortsci.agriculturejournals.cz/doi/10.17221/146/2016-HORTSCI.html (text/html)
http://hortsci.agriculturejournals.cz/doi/10.17221/146/2016-HORTSCI.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlhor:v:45:y:2018:i:3:id:146-2016-hortsci

DOI: 10.17221/146/2016-HORTSCI

Access Statistics for this article

Horticultural Science is currently edited by Ing. Eva Karská (Executive Editor)

More articles in Horticultural Science from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().