An exothermic process involved in the late spring frost injury to flower buds of some apricot cultivars (Prunus armenica L.)

Kaya, Özkan; Köse, Cafer; Gecim, Tevhit

doi:10.1016/j.scienta.2018.07.019

Cited by 33 publications

(12 citation statements)

References 24 publications

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“…Many measurement techniques (differential thermal analysis, magnetic resonance imaging, nuclear magnetic resonance, infrared video thermography, differential scanning calorimeter, low temperature electron microscope, electrical conductivity, tripheny tetrazolium chloride reduction, tissue browning) have been developed to understand the cold hardiness or frost tolerance mechanism of the plants exposed to low temperatures (Andrews et al, 1983;Fennell, 2004;Kaya and Köse, 2017;Mills et al, 2006;Quamme, 1972;Rende et al, 2018;Wample et al, 1990). Differential thermal analysis (DTA), one of these measurement techniques, is commonly used in determining cold hardiness of plant organs that avoid freezing by supercooling, such as flower buds of apricot (Kaya and Kose, 2019;Kaya et al, 2018), apple (Quamme, 1972;Salazar-Gutiérrez et al, 2016), cherry (Salazar-Gutierrez et al, 2014), peach (Durner and Gianfagna, 1991;Liu et al, 2019), pear (Montano et al, 1987), azalea (Graham and Mullin, 1976), and buds of grapevine (Andrews et al, 1984;Ferguson et al, 2014;Londo and Kovaleski, 2017;Londo et al, 2018;Mills et al, 2006;Quamme, 1986). Different chamber designs for differential thermal analysis have been described (Andrews et al, 1983(Andrews et al, , 1984Barney et al, 1994;Wolf and Pool, 1986).…”

Section: Introductionmentioning

confidence: 99%

“…However, DTA was originally developed by Wample et al (1990), and Mills et al (2006) developed the process to automate it. Thus, this method has now become a standard method to determine the tolerance of plants to low temperatures (Kaya and Kose, 2019;Kaya et al, 2018). DTA, which enables to obtain measurement and data for determining the cold hardiness of plants, has become a standard method widely used in recent years for deciduous trees and species with supercooling.…”

Section: Introductionmentioning

confidence: 99%

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How Pretest Temperatures Change the Cold Hardiness of Grapevine (Vitis ViniferaL. Cv. Karaerik) Dormant Buds?

Kaya

Köse

2020

International Journal of Fruit Science

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The aim of this study was to confirm the hypothesis that pretest temperature changes could alter the cold hardiness of the grapevine dormant buds and eventually the result of differential thermal analysis (DTA) test. For this reason, dormant buds of 'Karaerik' grape cultivar were collected at different times and tested using different DTA procedures. Dormant buds taken at nine different sampling temperatures (8, 6, 5, 3, −1, −3, −4, −5, and −9°C) were exposed to freezing test according to three DTA test approaches (TestA-A, TestA-4 and Test20-4, to represent ambient storage and ambient test, ambient storage and 4°C test, and 20 ± 2°C storage and 4°C test or standard DTA method, respectively) to verify our hypothesis in 2015-16 and 2016-17. The LTE (low temperature exotherm) temperatures were determined as the indicator of death of primary buds at grapevines' dormant buds, tested according to TestA-A approach, TestA-4 approach and Test20-4 approach (the standard methodology). It was found that temperature changes such as rapid cooling, warming and thawing in the TestA-4 approach, and warming-cooling and melting-cooling in the Test20-4 approach altered LTE values of dormant buds depending on the test start temperature. It was determined that the LTE values of dormant buds tested according to TestA-4 and Test20-4 approaches were higher than that of the ones tested with TestA-A approach. Compared to TestA-A approach, the LTE values of dormant buds were between 0.00 and 4.00°C in the TestA-4 approach and 0.00 and 2.77°C in the Test20-4 approach based on temperature changes. As a result, to achieve reliable, and consistent LTE results at DTA tests, it was determined that dormant buds should be brought into laboratory by keeping the temperatures at the sampling time, prepared for test at these temperatures and to start DTA test from these temperatures is a right approach.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

How Pretest Temperatures Change the Cold Hardiness of Grapevine (Vitis ViniferaL. Cv. Karaerik) Dormant Buds?

Kaya

Köse

2020

International Journal of Fruit Science

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“…Flower bud development is one of the most critical stages in their reliable production. Spring frost injury is the most common reason for yield-loss in producing countries at the Northern Hemisphere under temperate climate (Kaya et al, 2018). The annual growing cycle of temperate woody plants forms an integrated system with subsequent phases of active growth and dormancy (Perry, 1971; Lloret et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Identification, Structural and Functional Characterization of Dormancy Regulator Genes in Apricot (Prunus armeniaca L.)

et al. 2019

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In the present study, we identified and characterized the apricot ( Prunus armeniaca L.) homologs of three dormancy-related genes, namely the ParCBF1 ( C-repeat binding factor ), ParDAM5 ( dormancy-associated MADS-BOX ) and ParDAM6 genes. All highly conserved structural motifs and the 3D model of the DNA-binding domain indicate an unimpaired DNA-binding ability of Par CBF1. A phylogenetic analysis showed that ParCBF1 was most likely homologous to Prunus mume and Prunus dulcis CBF1 . Par DAM5 also contained all characteristic domains of the type II (MIKC C ) subfamily of MADS-box transcription factors. The homology modeling of protein domains and a phylogenetic analysis of ParDAM5 suggest its functional integrity. The amino acid positions or small motifs that are diagnostic characteristics of DAM5 and DAM6 were determined. For ParDAM6 , only a small part of the cDNA was sequenced, which was sufficient for the quantification of gene expression. The expression of ParCBF1 showed close association with decreasing ambient temperatures in autumn and winter. The expression levels of ParDAM5 and ParDAM6 changed according to CBF1 expression rates and the fulfillment of cultivar chilling requirements (CR). The concomitant decrease of gene expression with endodormancy release is consistent with a role of ParDAM5 and ParDAM6 genes in dormancy induction and maintenance. Cultivars with higher CR and delayed flowering time showed higher expression levels of ParDAM5 and ParDAM6 toward the end of endodormancy. Differences in the timing of anther developmental stages between early- and late-flowering cultivars and two dormant seasons confirmed the genetically and environmentally controlled mechanisms of dormancy release in apricot generative buds. These results support that the newly identified apricot gene homologs have a crucial role in dormancy-associated physiological mechanisms.

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“…While the province of Malatya is leading in drying production, Mersin has a say in fresh consume production thanks to the early varieties brought to the country with low cooling requirements. Late spring frosts are among the factors affecting the production of apricot (Kaya et al, 2018). Like other stone fruit types, apricots can be affected by frost from time to time since it blooms early in the spring.…”

Section: Introductionmentioning

confidence: 99%

Determination of Pollen Viability and Germination Ratios in Mersin Ecology of Some Early Apricot

Yaman¹,

Turan²

2021

CTNS

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Turkey is the leading country in the production of world apricots (Prunus armeniaca). In the country, apricots are usually grown for drying and fresh consumption, and apricots are also used for different purposes. This study was carried out to determine pollen viability and germination status in some foreign apricot varieties grown in Mut district of Mersin province, which has an important place in early ripening apricot production in Turkey. Pollen viability and germination ratios were determined by TTC and 1% agar 10% method in Mogador, Mikado, Pricia, Flopria apricot varieties. In terms of pollen values, the best result in terms of viable pollen is from the Mikado with 77.02% and Mogador varieties with 78.61%, while the Pricia variety with 44.09% in semi-viable pollen provides the most result, while Flopria and Pricia varieties produce the highest values in dead pollen results. In the germination tests, pollen germination rates were medium level in Flopria, Mogador and Mikado varieties the pollen germination rate of the Pricia variety is only 8.96%. The results obtained will be a guide in new orchard establishment and breeding studies.

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An exothermic process involved in the late spring frost injury to flower buds of some apricot cultivars (Prunus armenica L.)

Cited by 33 publications

References 24 publications

How Pretest Temperatures Change the Cold Hardiness of Grapevine (Vitis ViniferaL. Cv. Karaerik) Dormant Buds?

How Pretest Temperatures Change the Cold Hardiness of Grapevine (Vitis ViniferaL. Cv. Karaerik) Dormant Buds?

Identification, Structural and Functional Characterization of Dormancy Regulator Genes in Apricot (Prunus armeniaca L.)

Determination of Pollen Viability and Germination Ratios in Mersin Ecology of Some Early Apricot

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