The fulfilment of chilling requirements and the adaptation of apricot (Prunus armeniaca L.) in warm winter climates: An approach in Murcia (Spain) and the Western Cape (South Africa)

Campoy, José Antonio; Ruiz, David; Allderman, L.; Cook, Nigel C.; Egea, J.

doi:10.1016/j.eja.2011.10.004

Cited by 134 publications

(124 citation statements)

References 53 publications

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“…Nevertheless, the physiological and biochemical bases controlling flowering date are not completely understood. Different studies have revealed that chilling requirements have a major effect on flowering date compared to heat requirements in Prunus species such as apricot (Ruiz et al 2007;Campoy et al 2012), almond [P. amygdalus (Batsch) syn. P. dulcis (Miller) Webb] (Sánchez-Pérez et al 2012), sweet cherry (Alburquerque et al 2008;Dirlewanger et al 2012;Castède et al 2014Castède et al , 2015 and peach [P. persica (L.) Batsch] (Okie and Blackburn 2008).…”

Section: Introductionmentioning

confidence: 99%

Inheritance of reproductive phenology traits and related QTL identification in apricot

Salazar

Ruiz

Campoy

et al. 2016

Tree Genetics & Genomes

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Reproductive phenological traits of great agronomical interest in apricot species, including flowering date, ripening date and fruit development period, were studied during 3 years in two F 1 progenies derived from the crosses 'Bergeron' × 'Currot' (B × C) and 'Goldrich' × 'Currot' (G × C). Results showed great variability and segregation in each population, confirming the polygenic nature and quantitative inheritance of all the studied traits. Genetic linkage maps were constructed combining SSR and SNP markers, using 87 markers in the 'B × C' population and 89 markers in 'G × C'. The genetic linkage maps in both progenies show the eight linkage groups (LGs) of apricot, covering a distance of 394.9 cM in 'Bergeron' and of 414.3 cM in 'Currot'. The 'Goldrich' and 'Currot' maps were of 353.5 and 422.3 cM, respectively. The average distance obtained between markers was thus 7.59 cM in 'Bergeron' and 7.53 cM in 'Currot', whereas the 'Goldrich' and 'Currot' averages were 5.6 and 7.5 cM, respectively. According to the polygenic nature of the studied phenology traits, QTLs linked to flowering date, ripening date and the fruit development period were identified during the 3 years of the study in all LGs except for LG 8. Among the QTLs identified, major QTLs for flowering and ripening date and the fruit development period were identified in LG 4, especially important in the 'G × C' population.

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Section: Introductionmentioning

confidence: 99%

Inheritance of reproductive phenology traits and related QTL identification in apricot

Salazar

Ruiz

Campoy

et al. 2016

Tree Genetics & Genomes

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“…The greater rise in winter and spring (January to March) temperatures lead to earlier flowering, which coincides with the time of spring frost resulting in a remaining risk of frost damage to apple flowers [31]. Campoy et al, [32] found chilling requirement differences higher than 50% for clonal plant material of apricot grown successfully in different climatic conditions. This variation might be associated both with different temperature and other factors such as latitude.…”

Section: Impact Of Climate Changementioning

confidence: 99%

Implications of Changing Climate on Productivity of Temperate Fruit Crops with Special Reference to Apple

Joshi¹

2015

Horticulture

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Winter chill is essential for most of the plants that fall dormant in the winter in order to avoid frost damage and do not resume growth until a certain amount of winter chill has accumulated for fulfilling their chilling requirement. Climate change is likely to affect chilling requirement of temperate fruit crops significantly and therefore, the opportunity to meet this requirement will be reduced as the climate becomes warmer. Increase in average global temperature would move the existing plant species and varieties to new latitudinal belts with favourable climates. It is, therefore, possible that crops that are used to be productive in one area may no longer be so or the other way round. The resultant of these climate changes are clearly apparent in the shifting of apple cultivation from lower elevations to higher altitudes in India.Insufficient chilling greatly influences flower initiation and fruit colouration along with deterioration in fruit texture and taste. Further, the lack of proper chilling is also posing serious problems like scab disease, premature leaf fall and infestation of red spider mite in apple. High temperature and moisture stress is increasing sunburn and cracking in apple, apricots and cherries in the higher altitudes. Insufficient chilling reduces pollination, fruit set and ultimately the yield in walnuts, pistachio and peaches. Advanced flowering has been found in olive, apple and pear. Reduced flower size and pedicel lengths were observed in cherry due to less chilling.The studies regarding impact of climate change on fruit crops is meagre primarily due to lack of data, appropriate modeling and government policies. Development of low chill cultivars with greater tolerance to stresses, use of GIS to match varieties with the projected suitable production locations, development of suitable dormancy and chilling models, altering orchard microclimate and use of rest breaking chemicals are the viable approaches that can be adopted to yield reliable results on regional scale.

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“…Recent studies have emphasized not only the chilling requirement of each cultivar, but also the timing of the chilling period for each cultivation area (Campoy et al, 2012;Kweon et al, 2013). An earlier end and shorter duration of the chilling period means that the endodormancy of woody plants needs to break sooner.…”

Section: Hort J Previewmentioning

confidence: 99%

“…Various studies have been conducted on chilling traits of fruit trees as these traits are directly related to productivity and economic feasibility; similar studies have also been performed on woody plants in forests (Heide, 1993;Myking and Heide, 1995). Many studies have focused on evaluating the chilling requirements of crop species (Campoy et al, 2012;Rahemi and Pakkish, 2009;Zhuang et al, 2016). In South Korea, various studies have been conducted to identify fruit tree varieties with low chilling requirements because temperate fruit trees are cultivated throughout the country (Kweon et al, 2013;Lee et al, 2015a, b).…”

Section: Introductionmentioning

confidence: 99%

Predicted Effects of Climate Change on Winter Chill Accumulation by Temperate Trees in South Korea

2018

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This study was conducted to understand the characteristics of winter chill accumulation in South Korea and to predict its fluctuations due to global climate change. Using climate data for 30 regions and previously established models, we estimated winter chill accumulation for those regions and predicted future changes. The temperature range from 0-7.2°C is considered effective for breaking endodormancy, so an average of 1750 chilling hours was supplied per winter between 1999 and 2015. The 30 study regions were divided into five groups based on temperature distribution. Groups 1 and 2 had fewer and more than 830 annual hours at temperatures of 0-3.6°C, respectively. Groups 3, 4, and 5 had 950-1310, 1310-1515, and more than 1515 hours, respectively, at temperatures below 0°C. The number of hours the groups was exposed to the effective temperature range for breaking endodormancy under the projected elevated temperature conditions decreased from group 5 to group 1; the loss of effective hours was in the same order. As a result, winter chill accumulation abruptly decreased from group 5 to group 1 under elevated climatic temperature conditions. The delay in the start of winter chill accumulation increased from groups 4 and 5 to group 1, and the end came earlier in the same order; groups 4 and 5 showed very similar changes at the start and end of chill accumulation. Under elevated temperature conditions, chilling accumulation is expected to start later and end earlier in all regions. These changes will be accelerated with a greater rise in regional temperatures, and elevated temperatures will lengthen the endodormancy of woody plants, but shorten the period of chilling accumulation. The results of this study can be used as fundamental data to establish plans for responses to climate change such as the selection and renewal of cultivars.

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The fulfilment of chilling requirements and the adaptation of apricot (Prunus armeniaca L.) in warm winter climates: An approach in Murcia (Spain) and the Western Cape (South Africa)

Cited by 134 publications

References 53 publications

Inheritance of reproductive phenology traits and related QTL identification in apricot

Inheritance of reproductive phenology traits and related QTL identification in apricot

Implications of Changing Climate on Productivity of Temperate Fruit Crops with Special Reference to Apple

Predicted Effects of Climate Change on Winter Chill Accumulation by Temperate Trees in South Korea

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