Frost Tolerance in Young Plants of Olea Europaea L. 'Arbequina' and 'Barnea': Role of Tissue Water Status

Iturrieta, J.P. Turchetti; Ruiz, María Luisa Sanchiz; Serman, F. Vita

doi:10.17660/actahortic.2014.1057.18

Cited by 4 publications

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“…In addition, exogenous application of different phytohormones may reduce the harmful effects of low temperature. Exogenous application of salicylic acid (SA) [ 174 ] and jasmonates (JAs) and brassinosteroids (BRs) [ 175 ] have been used to improve plant tolerance and or resistance to low temperatures. SA is a growth regulator in plants and is an important signal molecule involved in plant responses to abiotic and biotic stresses.…”

Section: Agronomic Management For Frost Protectionmentioning

confidence: 99%

“…Jasmonates (lipid-derived phytohormones,) and Brassinosteroids (steroid hormones) are novel phytohormones involved in plant developmental processes and plant adaptations to biotic and abiotic stresses [ 176 , 177 ]. Three different concentrations of methyl jasmonate (MeJA; 0.02, 0.1, 0.2 mM) and of 24–epibrassinolide (EBR; 0.2, 0.4, and 0.6 μM) respectively, were used to monitor the response to low temperatures in Koroneki cultivar [ 174 ]. Foliar application of MeJA and EBR improved FT of olive leaves by reduced ion-leakage and MDA content and increased proline, carbohydrates, total soluble protein and the total phenolic compounds.…”

Section: Agronomic Management For Frost Protectionmentioning

confidence: 99%

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Cold Stress, Freezing Adaptation, Varietal Susceptibility of Olea europaea L.: A Review

Petruccelli

Bartolini

Ganino

et al. 2022

Plants

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Olive (Olea europaea L.) is an evergreen xerophytic tree characterizing vegetative landscape and historical-cultural identity of the Mediterranean Basin. More than 2600 cultivars constitute the rich genetic patrimony of the species cultivated in approximately 60 countries. As a subtropical species, the olive tree is quite sensitive to low temperatures, and air temperature is the most critical environmental factor limiting olive tree growth and production. In this present review, we explored the detrimental effects caused of low temperatures on olive cultivars, and analyzed the most frequently experimental procedures used to evaluate cold stress. Then, current findings freezing stress physiology and gene are summarized in olive tree, with an emphasis on adaptive mechanisms for cold tolerance. This review might clear the way for new research on adaptive mechanisms for cold acclimation and for improvement of olive growing management.

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Section: Agronomic Management For Frost Protectionmentioning

confidence: 99%

Section: Agronomic Management For Frost Protectionmentioning

confidence: 99%

Cold Stress, Freezing Adaptation, Varietal Susceptibility of Olea europaea L.: A Review

Petruccelli

Bartolini

Ganino

et al. 2022

Plants

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“…En la estación invernal la resistencia al frío dependerá de la adaptación de las plantas. Cuando los días se acortan y la temperatura desciende, comienza un proceso de endurecimiento por frío, que implica una disminución del contenido de agua, mejorando la tolerancia a las bajas temperaturas invernales (Turchetti Iturrieta et al 2014). Asimismo, como la temperatura nunca alcanzó -12ºC en la serie estudiada, se calculó únicamente el riesgo de heladas de -7ºC para un período de 10 años, siguiendo la metodología adoptada por Villalobos y López-Bernal (2017).…”

Section: Resultados Y Discusiónunclassified

Comportamiento agronómico del olivo (Olea europaea L.) en relación a las temperaturas locales en el sudoeste bonaerense, Argentina

Leandro,

RJ,

2023

rcli

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Las bajas temperaturas representan una limitante para implantar olivos (Olea europaea L.) en muchas regiones. En el sudoeste de la provincia de Buenos Aires (SOB), la producción olivícola surge como una alternativa a los planteos típicos de cereales de invierno y ganadería. La finalidad de este trabajo fue conocer en qué fecha ocurren las etapas fenológicas para la cultivar Arbequina y relacionarlo con el estudio de las temperaturas locales en tres sitios del SOB: Coronel Dorrego (Dorrego), Puan y Cabildo. Se calculó el riesgo de que se produzcan temperaturas que afecten el desarrollo del cultivo durante el invierno y la probabilidad de heladas en fechas críticas del cultivo. En los meses invernales, se registraron -7ºC en Cabildo y Puan, no así en Dorrego, mientras que las temperaturas no alcanzaron -12ºC en ningún sitio. También se registraron algunas heladas luego del período de brotación, principalmente en Cabildo. La fecha límite para cosechar el fruto con mínimo riesgo de temperaturas congelantes (≤10%) resultó más temprana en Puan, siendo Dorrego la más tardía, es decir, con posibilidad de extender la recolección hasta el 27 de mayo. Los resultados indicarían que el SOB presenta condiciones climáticas aptas para el desarrollo de la olivicultura. Sin embargo, el riesgo estará sujeto principalmente a las heladas tempranas en primavera, momento en que ocurre la brotación de las yemas florales. Estos resultados deberían ser útiles para realizar un manejo más eficiente de las prácticas agrícolas en el olivar. Continuar con el estudio del comportamiento de Arbequina y otras cultivares en la zona será imprescindible para fomentar nuevas inversiones.

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“…The on/off crop load year, which largely determines the nutritional state of the tree, can affect the response of the tree to frost. Turchetti-Iturrieta et al. (2014) observed that the water status of the tree in the ‘Arbequina’ and ‘Barnea’ cultivars can modify the frost tolerance and that the trees subjected to water stress better tolerated low temperatures.…”

Section: Introductionmentioning

confidence: 99%

An easy methodology for frost tolerance assessment in olive cultivars

Valverde,

Lodolini,

Giorgi

et al. 2024

Front. Plant Sci.

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IntroductionOlive cultivation, like other evergreen fruit crops worldwide, is limited by the occurrence of frost episodes in different times of the year, mainly in winter or early spring. Some contradictory results are reported about cultivars’ response to frost, which depends on the physiological stage of the tissues (acclimated or not acclimated) when the cold or frost episode occurs. This work aimed to implement a user-friendly and reliable lab method for discerning frost tolerance.MethodsOur methodology considered both detached leaves and potted plantlets. The optimal temperature at which damage differentiated between cultivars was evaluated, as well as the time of exposure to cold and the recovery time for the correct evaluation of the symptoms. Furthermore, a comparative analysis of damage on both young and mature leaves was conducted. To validate the efficacy of the methodology, assessments were conducted on the cultivars ‘Arbequina’ (tolerant), ‘Picual’ (moderately tolerant), and ‘Frantoio’ (susceptible) under acclimated and non-acclimated conditions.Results and discussionThe results indicated that, when detached leaves were used for frost evaluation, a temperature of -10°C ± 1°C for 30 min and a recovery time at 26°C for 24–48 h after exposure to cold are enough to induce damages on the leaves and discriminate between cultivar susceptibility. Under these conditions, a precise assessment of symptoms can be made, facilitating the categorization of frost tolerance level in various olive cultivars. Notably, no significant differences were observed between young and mature leaves during the evaluation process. On the other hand, the critical temperature to assess damages on potted plantlets was determined to be -7°C ± 1°C. In addition, it was observed that acclimated plants exhibited fewer symptoms compared to non-acclimated ones, with ‘Frantoio’ being the most affected alongside ‘Picual’ and ‘Arbequina’.ConclusionThe implemented methodology will allow the assessment of frost tolerance in several olive cultivars within a short timeframe, and it is proven to be user-friendly and reliable.

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Frost Tolerance in Young Plants of Olea Europaea L. 'Arbequina' and 'Barnea': Role of Tissue Water Status

Cited by 4 publications

References 0 publications

Cold Stress, Freezing Adaptation, Varietal Susceptibility of Olea europaea L.: A Review

Cold Stress, Freezing Adaptation, Varietal Susceptibility of Olea europaea L.: A Review

Comportamiento agronómico del olivo (Olea europaea L.) en relación a las temperaturas locales en el sudoeste bonaerense, Argentina

An easy methodology for frost tolerance assessment in olive cultivars

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