Bestimmung des Wärmebedarfs und der effektive benötigten Wärmesumme einiger Granatapfel-Sorten, die in Süd-Anatolien angebaut werden

İkinci, Ali; Mamay, Mehmet; Ünlü, Levent; Bolat, İbrahim; Erċışlı, Sezai

doi:10.1007/s10341-014-0220-8

Cited by 17 publications

(15 citation statements)

References 26 publications

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“…Moreover, Spiegel-Roy (1979) suggested that high heat requirement is partly attributed to a residual effect of dormancy. Our data showed variation in heat requirement from 4096 to 7928°C, which contrasts Ikinci et al (2014) results which showed a narrow range in heat requirement (7373 to 8008°C) for a group of Turkish pomegranate cultivars including Suruc, Katirbasi, and Hicaznar. 'Malas Yazdi', in particular showed as very high heat requirement (7928 GDH).…”

Section: Variablecontrasting

confidence: 99%

“…'Malas Yazdi', in particular showed as very high heat requirement (7928 GDH). It appears that the heat requirement of pomegranate cultivars is affected by climate, altitude, cultivar, age of the tree, models used for estimation, and the year that experiment is carried out (Ikinci et al, 2014). Our results showed that chilling requirement was independent of altitude (r = -0.15), while interestingly, a negative correlation was observed between chilling requirement and wind speed (r = -0.39) (Fig.…”

Section: Variablementioning

confidence: 64%

“…We suggest that this information could be used to identify the most suitable cultivars for cultivation in a particular area, as well as the most appropriate areas for pomegranate production. Ikinci et al (2014) reported that in pomegranate similar to other tree fruit species, such as almond, pistachio, apricot, and sweet cherry, heat requirement regulate flowering, and is very important for fruit cultivation. Moreover, Spiegel-Roy (1979) suggested that high heat requirement is partly attributed to a residual effect of dormancy.…”

Section: Variablementioning

confidence: 99%

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Chilling and Heat Requirements of 20 Iranian Pomegranate Cultivars and Their Correlations with Geographical and Climatic Parameters, as well as Tree and Fruit Characteristics

Soloklui

Gharaghani

Oraguzie

et al. 2017

horts

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Chilling and heat requirements can affect agroclimatic distribution, growing season, and the marketing period of pomegranate (Punica granatum L.) cultivars in commercial production. This study was carried out to determine the chilling and heat requirements of 20 Iranian pomegranate cultivars/accessions, and to also examine the correlation of these features with tree and fruit characteristics, as well as geographic and climatic parameters of the original environment the plant materials came from. One-year-old stem cuttings from mature trees were used for measurements of chilling and heat requirements. The results showed a range of variation in chilling requirement among cultivars from 233 to 633 hours and heat requirement from 4096 to 7928 growing degree hour (GDH). Based on chill hours accumulated, cultivars including Bihaste Ravar, Bihaste Sangan Khash, and Anar Siah were categorized as very low chill (233–266 hours), whereas cultivars Poost Nazok Torosh Abarkuh, Malas Yazdi, Jangali Poost Ghermez Roodbar, Rabab Poost Ghermez Neyriz, and Makhmal Malas Shahreza were grouped as low chill (600–633 hours). Variation in seed hardness from 15 to 78 N was also recorded. Chilling requirement showed a moderate correlation with stomatal density, seed hardness, and wind speed (r = 0.42, 0.44, and −0.39, respectively), whereas stomatal density showed correlations of r = −0.34 and −0.57 with altitude and wind speed, respectively. We suggest taking chilling and heat requirements into account when selecting individual’s cultivars and/or accessions suitable for cultivation in different agroclimatic regions.

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Section: Variablecontrasting

confidence: 99%

Section: Variablementioning

confidence: 64%

Section: Variablementioning

confidence: 99%

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Chilling and Heat Requirements of 20 Iranian Pomegranate Cultivars and Their Correlations with Geographical and Climatic Parameters, as well as Tree and Fruit Characteristics

Soloklui

Gharaghani

Oraguzie

et al. 2017

horts

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“…The use of GDD allows for comparisons to be made across different years and geographical areas (Melgarejo et al, 1997). Ikinci et al (2014) reported the sprouting of first leaves and anthesis for three pomegranate varieties, Hicaznar, Suruc, and Karirbasi, at 127 and 351, 146 and 359, and 142 and 362 GDD, respectively. These results were higher than the values we reported in the present study for leaf budding, and were somewhat lower for anthesis (Table 2).…”

Section: Discussionmentioning

confidence: 99%

Performance and Phytochemical Content of 22 Pomegranate (Punica granatum) Varieties

Hooks¹,

Niu²,

Masabni³

et al. 2021

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Pomegranate is a drought-tolerant and salt-tolerant crop. Its fruits contain high levels of phytochemicals that have many health benefits. Pomegranate has the potential to be an alternative crop in areas where water availability is limited, such as west Texas. However, more than 500 pomegranate varieties are estimated to exist worldwide, and little is known about which varieties are suitable for growing in the west Texas region. Therefore, the objective of this study was to evaluate the field performance of 22 pomegranate varieties, specifically based on phenology, resistance to sunburn, fruit split, fruit rot (resistance was calculated by subtracting the percent incidence by 100), yield, fruit phytochemicals, and Brix over the course of 3 years from 2016 to 2018. Cold damage, caused by below-freezing temperatures encountered from Nov. 2018 to Feb. 2019, was also evaluated in Apr. 2019. Our results showed significant varietal differences in nearly all response variables measured, indicating that varietal selection is important for pomegranate production for specific regions, such as west Texas. Leaf budding ranged from 47 to 62 days in 2016, 41 to 54 days in 2017, and 49 to 60 days in 2018. Anthesis ranged from 87 to 119 days in 2016, 80 to 94 days in 2017, and 92 to 114 days in 2018. Fruit resistance to split was broad and ranged from 7.3% to 79.1% in 2017 and from 14.2% to 99.7% in 2018. Fruit sunburn resistance ranged from 14.0% to 64.6% in 2017 and from 28.3% to 90.0% in 2018. Fruit heart rot incidence was nominal for all varieties. Total phenolic compound contents of the pomegranate fruit juice ranged from 0.81 to 1.52 mg GAE/mL, and the total antioxidant capacity ranged from 3.44 to 6.81 mg TE/mL. The yield per tree ranged from 1.00 to 7.96 kg in 2017 and from 0.81 to 10.26 kg in 2018. Brix ranged from 12.5% to 17.4% in 2017 and from 13.9% to 18.4% in 2018. Early winter below-freezing temperatures caused different degrees of cold damage; however, 5 of 22 varieties that originated from Russia did not show any cold damage. Results of a hierarchical cluster analysis based on the means of the key response variables of yield and Brix indicated that four varieties (Al-Sirin-Nar, Russian 8, Ben Ivey, and Salavatski) were notable for having both high yield and high Brix.

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“…The plant growth and development is dependent upon the temperature surrounding the plant and each species has a specific temperature range, commonly characterized by a thermal optimum, minimum, and maximum thermal limits [6]. For fruit species, a certain heat accumulation is essential for adequate growth, physiological development and to obtain ripe fruits [7,8]. Many woody plant species growing in temperate climates also require a certain amount of exposure to cold temperatures to break winter dormancy and prepare to springtime warming [9].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Growing Thermal Conditions of Main Fruit Species in Portugal Based on Hourly Records from a Weather Station Network

et al. 2019

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Thermal conditions in mainland Portugal were evaluated using a new hourly database over the recent period of 2000–2018 (19 years). The number of hours within each different temperature interval was calculated from the long-term means of the hourly temperatures of a network of 63 meteorological stations. A geostatistical approach, using elevation, distance to coastline and latitude, was subsequently applied to provide gridded patterns at a high spatial resolution (1 km grid spacing). Eight fruit species (almond tree, carob tree, chestnut tree, citrus fruits, cork oaks, holm oaks, olive trees, and grapevines) were selected to assess their hourly thermal growing conditions. The results highlight the strong spatial variability of temperature levels in mainland Portugal, providing new insights into their spatial distribution. The number of hours in the year with cool conditions (4–12 °C) is higher in the northern-central regions, mainly in mountainous areas. Additionally, the number of hours in the year with temperate conditions (12–20 °C) emphasizes the importance of the distance to the coastline (maritime influence). The warm conditions (20–28 °C) are most prevalent in the south of the country and in the Douro valley, whereas the very warm conditions (number of hours with temperature between 28–36 °C) are essentially restricted to inner-southern Portugal and to the upper Douro valley. This study also reveals, with high accuracy, the thermal growing conditions of main fruit species in mainland Portugal, giving particular emphasis to olive trees and grapevines. These findings may help decision support systems providing more reliable and accurate guidelines to stakeholders, decision-makers, and farmers. The main maps are available in a widely used file format (shapefile), thus allowing their application to a wide range of other areas of interest.

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Bestimmung des Wärmebedarfs und der effektive benötigten Wärmesumme einiger Granatapfel-Sorten, die in Süd-Anatolien angebaut werden

Cited by 17 publications

References 26 publications

Chilling and Heat Requirements of 20 Iranian Pomegranate Cultivars and Their Correlations with Geographical and Climatic Parameters, as well as Tree and Fruit Characteristics

Chilling and Heat Requirements of 20 Iranian Pomegranate Cultivars and Their Correlations with Geographical and Climatic Parameters, as well as Tree and Fruit Characteristics

Performance and Phytochemical Content of 22 Pomegranate (Punica granatum) Varieties

Assessment of Growing Thermal Conditions of Main Fruit Species in Portugal Based on Hourly Records from a Weather Station Network

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