Determination of Chilling and Heat Requirements of Pistachio (Pistacia vera L.) Cultivars

Rahemi, Majid; Pakkish, Zahra

doi:10.1016/s1671-2927(08)60281-3

Cited by 27 publications

(19 citation statements)

References 19 publications

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“…Chilling is usually effective at temperatures below 7°C (Luedeling, 2012). Under natural conditions, the end of the dormancy period and the ability to resume growth in temperate fruit trees are mediated by chill accumulation (Alburquerque, García-Montiel, Carrillo, & Burgos, 2008;Gariglio, Weber, Castro, & Micheloud, 2012;Oukabli & Mahhou, 2007;Rahemi & Pakkish, 2009;Segantini, Leonel, Cunha, Ferraz, & Ripardo, 2014). The main challenge for temperate fruit production in the tropics is to overcome the dormancy period (Erez, 2001).…”

Section: Introductionmentioning

confidence: 99%

Advances in the production of temperate fruits in the tropics

et al. 2018

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The present study aimed to review the advances in the production of temperate fruits to determine future research directions that improve production in the tropics. Temperate fruits are no longer only produced in regions characterized by a cold winter period. These fruits are also produced in the sub-tropical and tropical regions characterized by mild winter or even the absence of chilling conditions often required by the tree to break dormancy. Currently, temperate fruit production is possible in certain regions of South America, Africa and Asia that are near to the Equator. However, temperate tree fruit production in tropical regions requires modified techniques to overcome dormancy and allow adequate flowering, growth and productivity. The main approaches taken are the development of cultivars with low chilling requirement, chemical induction of budbreak, interruption of irrigation during the winter period, defoliation, orchard densification, and double pruning. Breeding has become a key tool in the advancement of temperate fruit growing in the tropics, especially with the development of low chilling requirement cultivars.

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Section: Introductionmentioning

confidence: 99%

Advances in the production of temperate fruits in the tropics

et al. 2018

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“…Although a few papers support the Dynamic Model on peach (Allan et al, 1995;Erez et al, 1990), apricot (Ruiz et al, 2007), and walnut (Luedeling et al, 2009c), the Dynamic Model has not been widely adopted (Luedeling et al, 2009a). Studies of chill requirements in pistachio have mainly used the Chilling Hour and Utah Models (Afshari et al, 2009;Rahemi and Pakkish, 2009). The amount of chill required for 'Sirora' pistachio grown in Australia has not been established.…”

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confidence: 99%

The Dynamic Model Provides the Best Description of the Chill Process on ‘Sirora’ Pistachio Trees in Australia

Zhang¹,

Taylor²

2011

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Determining the chilling requirement for ‘Sirora’ pistachio (Pistacia vera L.) production in Australia and monitoring winter chill accumulation is desirable to allow growers to take timely mitigating action in years of insufficient chill. Based on greenhouse work, historical data analysis, and field validation, the Chilling Hour, Utah, and Dynamic Models were compared. The Dynamic Model produced the best determination for fulfillment of chilling requirement with 59 chill portions. The required number of growing degree-hours above 4.4 °C from chill fulfillment to 50% bloom was 9633. Relations among the level of fulfillment of chilling requirement, bloom delay, and yield are discussed.

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“…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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Determination of Chilling and Heat Requirements of Pistachio (Pistacia vera L.) Cultivars

Cited by 27 publications

References 19 publications

Advances in the production of temperate fruits in the tropics

Advances in the production of temperate fruits in the tropics

The Dynamic Model Provides the Best Description of the Chill Process on ‘Sirora’ Pistachio Trees in Australia

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

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