Tolerance of peach flower buds to low sub-zero temperatures in winter

Szymajda, Marek; Žurawicz, E.

doi:10.17221/206/2015-hortsci

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…The study also did not consider the environmental factors that may influence the development and spread of mold in peach cultivars. Factors such as temperature, humidity, rainfall, irrigation, pruning, fertilization, and pesticide application may affect the susceptibility or resistance of peach cultivars to mold (Carrera et al, 2005;Byrne, 2010;Pascal et al, 2010;Lalancette et al, 2014;Szymajda and Zurawicz, 2016;Oh et al, 2017). For example, high humidity and low temperature may favor the growth of B. cinerea and P. expansum, while high temperature and low humidity may favor the growth of A. flavus and A. niger (Pascal et al, 2010).…”

Section: Effect Of Essentials Oils Against B Cinereamentioning

confidence: 99%

Assessment of Responses of Peach Cultivars to Postharvest Pathogen Botrytis Cinerea and its Mitigation using Plant Essential Oils

Ahmad,

Abbas,

Murtaza

et al. 2023

Plant Prot.

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In peaches, post-harvest losses occur due to injury during mishandling, storage, processing, and transportation, especially caused by pathogen infections that result in the reduction of quantity, quality, and market value of agricultural commodities. Numerous postharvest pathogens attack peaches, especially Botrytis cinerea, which causes grey mold disease, resulting in losses of about $10 billion globally. The current paper reports the results of a study that investigated the occurrence of different fungi and the effect of different essential oils on mold growth in five peach cultivars. The study found that Penicillium expansum, Botrytis cinerea, Aspergillus flavus, and A. niger had different preferences and distributions among the cultivars. The study also found that Florida King 6-A was resistant to B. cinerea, while Early Gold was highly susceptible. The study also found that cinnamon oil was the most effective essential oil in controlling mold growth in Florida King 6-A, while sesame oil was the least effective in Early Grand. The study also found that clove bud oil at 100% concentration had the highest antifungal potency among the tested essential oils and that different concentrations of essential oils were required for different cultivars. These findings highlight the varying levels of susceptibility among peach cultivars to fungal pathogens and the varying degrees of effectiveness associated with different essential oils in mitigating fungal growth. Such insights are invaluable for agricultural practices aiming to protect peach crops from fungal infections and optimize yield.

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Section: Effect Of Essentials Oils Against B Cinereamentioning

confidence: 99%

Assessment of Responses of Peach Cultivars to Postharvest Pathogen Botrytis Cinerea and its Mitigation using Plant Essential Oils

Ahmad,

Abbas,

Murtaza

et al. 2023

Plant Prot.

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“…to frost has also been studied and significant differences have been found between cultivars (Hatch and Walker 1969;Proebsting and Mills 1978;Szabó 1992;Nyéki and Szabó 1989;Miranda et al 2005;Szymajda and Zurawicz 2016;Weaver 1966;Szabó 2002;Childers 1975;Childers and Sherman 1988;Okie 1998;Layne and Bassi 2008;Nyéki 1988, 1991;Szabó 1992Szabó , 2002, Timon 2000Szalay 2001;Szalay et al 2010).…”

Section: Article Informationmentioning

confidence: 99%

Frost hardiness of almond flower buds during dormancy

et al. 2023

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Frost hardiness of flower buds of twenty almond genotypes was investigated in five dormancy periods by determining LT50 values after artificial freezing tests. The main aim of our work was modelling the changing of frost hardiness of the observed accessions during dormancy and assessing the potential best frost tolerance of them. The effect of genotype and year had significant impact on frost hardiness of flower buds. The potential frost hardiness of accessions has been characterised by LT50 values of flower buds averaged of the bests of the four years. ‘Sóskút 96/5’ was the most sensitive with -17.16 °C, and ‘Tétényi keményhéjú’ was the most frost hardy with -21.08 °C in averaged of years, but both showed lower and higher frost tolerance as well in different years. Flower buds were most frost-tolerant in December and January but did not achieve the same frost resistance every year. From this, we conclude that temperature plays an important role in the hardening process of them. From the aspect of safe yield, frost hardiness of flower buds is an important trait of cultivars, because Hungary is situated at the northern part of economical almond growing area. Our work contributes to facilitating practical considerations in orchard planning.

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“…The impact of both natural and simulated warming on peach hardiness in winter and spring is well-documented (Chaplin 1948;Durner 1995;Edgerton 1954;Layne and Ward 1978;Layne et al 1977;Liu et al 2019;Minas and Sterle 2020;Moran 2021;Shin et al 2015;Szalay et al 2010;Szymajda and Zurawicz 2016), but how it affects cold acclimation in the fall is not as well understood. Minimum temperatures in the 4 preceding days strongly influence peach flower bud hardiness during endodormancy (Minas and Sterle 2022).…”

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confidence: 99%

Low Temperature Tolerance of Peach Flower Buds and Shoot Tissues Is Differentially Influenced by Freezing and High Temperature Exposure

Moran,

Ginakes

2024

horts

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In northern temperate zones, peach trees are vulnerable to cold temperature injury in the fall, particularly as climate change prolongs warm weather in the fall and potentially delays the onset of cold acclimation. Four experiments evaluated how cold acclimation of flower buds and shoot phloem, cambium, and xylem is affected by exposure to varying temperatures in the fall. One-year-old peach shoots from trees grown in Maine, USA, were collected from October through November, exposed to 1, 3, or 6 days of low, high, and freezing temperatures, and subjected to stepwise controlled freezing to about −30 °C. Injury was visually quantified as oxidative browning of flower buds and shoot tissues. High temperature exposure, even of a single day, decreased cold tolerance of flower buds and shoot tissues until late November, when high temperatures only minimally decreased cold hardiness. In mid-November, increasing the duration of high temperature exposure from 1 to 3 days decreased cambium and phloem hardiness, but hardiness in flower buds was not further decreased by the longer duration of 3 days. By late November, hardiness in flower buds, cambium, and phloem was less responsive to high temperature, and was increased by prior exposure to 6 days of freezing. After high temperature, xylem lost hardiness to a small degree in mid-October and late November, but in mid-November this occurred in only one experiment. In this study, deacclimation during high temperature in the fall was greater in cambium and phloem than in flower buds and at times greater than in xylem.

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Tolerance of peach flower buds to low sub-zero temperatures in winter

Cited by 4 publications

References 11 publications

Assessment of Responses of Peach Cultivars to Postharvest Pathogen Botrytis Cinerea and its Mitigation using Plant Essential Oils

Assessment of Responses of Peach Cultivars to Postharvest Pathogen Botrytis Cinerea and its Mitigation using Plant Essential Oils

Frost hardiness of almond flower buds during dormancy

Low Temperature Tolerance of Peach Flower Buds and Shoot Tissues Is Differentially Influenced by Freezing and High Temperature Exposure

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