Water relations of field grown Pomegranate trees (Punica granatum) under different drip irrigation regimes

Intrigliolo, Diego S.; Nicolás, Emilio Nicolás; Bonet, Luís; Ferrer, Pedro Pablo; Alarcón, Juan José; Bartual, J.

doi:10.1016/j.agwat.2010.11.006

Cited by 43 publications

(18 citation statements)

References 14 publications

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“…Therefore, identifying and introducing the most tolerant pomegranate cultivar to water deficit is very essential. The majority of studies on pomegranate trees under water stress have primarily investigated physiological responses such as transpiration, stomatal conductance, photosynthesis, intrinsic water use efficiency, stem and leaf water potential, RWC, and leaf osmotic potential (Galindo et al 2013;Intrigliolo et al 2011;Mellisho et al 2012;Parvizi et al 2016;Rodríguez et al 2012). To the best of our knowledge, there is no information on biochemical and molecular responses of pomegranate under water stress.…”

Section: Introductionmentioning

confidence: 97%

Responses of pomegranate cultivars to severe water stress and recovery: changes on antioxidant enzyme activities, gene expression patterns and water stress responsive metabolites

Pourghayoumi

Rahemi

Bakhshi

et al. 2017

Physiol Mol Biol Plants

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The biochemical and molecular responses of five commercially well-known pomegranate cultivars to severe water stress were studied. The cultivars were subjected to 14-day water stress by withholding irrigation, followed by re-watering for 7 days. Results showed clear differences in metabolites contents and activities of antioxidant enzymes among various pomegranate cultivars during severe water stress and recovery. According to our results, increased accumulation of proline in pomegranate was not related to osmotic adjustment during severe water stress. Except for 'Ghojagh', leaves grown under severe water stress conditions showed symptoms of oxidative stress such as reduced chlorophyll concentration. The improved performance of 'Ghojagh' under drought stress may be associated with an efficient osmotic adjustment. The up-or down regulated expression of cytosolic glutathione reductase (cytosolic GR) and glutathione peroxidase were observed under drought conditions. Moreover, the suppressed expression of cytosolic GR was also noted. Comparatively, 'Rabab' exhibited higher antioxidant capacity and an efficient ROSscavenging mechanism under drought stress. Lower levels of membrane lipid peroxidation in 'Ghojagh' and 'Rabab' under drought stress and the marked reduction of malondialdehyde concentration after re-watering represents that these cultivars have a good tolerance to drought stress. As a first step towards the study of the biochemical and molecular responses of pomegranate plants to water stress, this research provides new information into the mechanisms of drought tolerance in the plants.

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Section: Introductionmentioning

confidence: 97%

Responses of pomegranate cultivars to severe water stress and recovery: changes on antioxidant enzyme activities, gene expression patterns and water stress responsive metabolites

Pourghayoumi

Rahemi

Bakhshi

et al. 2017

Physiol Mol Biol Plants

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“…The development and quality of fruits are also affected by deficient irrigation, although in some cases, fruit quality has been improved (Lawand et al, 1991;Mellisho et al, 2012). Overall, restricting irrigation produces a decrease in photosynthesis and stomatal conductance, affecting the plants' vegetative growth (Intrigliolo et al, 2011b). In addition, there is an inverse relationship between salt content and evapotranspiration in young pomegranate trees.…”

Section: Introductionmentioning

confidence: 99%

RESPONSES OF YOUNG Punica granatum PLANTS UNDER FOUR DIFFERENT WATER REGIMES

et al. 2016

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. We evaluated the effect of the four treatments on canopy volume (CV) during two growing seasons. For 28 days during the second growing season, we evaluated soil moisture content (θ), the soil-moisture depletion factor (p), trunk cumulative growth (TCG), trunk growth rate (TGR) and maximum daily trunk shrinkage (MDS). We found relationships between CV and TCG and between CV and TGR. There were no differences in MDS among the irrigation treatments. We observed significant water stress in plants in the 0.3 ETc treatment (p = 0.47). The highest growth was observed in plants in the 1.3 ETc treatment, which suggests that the crop coefficient (Kc) was underestimated.

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“…The water relations of fi eld grown pomegranate trees grown under different drip irrigation regimes were recently investigated by Intrigliolo et al ( 2011 ) . These authors observed that during spring and autumn, midday SWP was not signifi cantly different between irrigation treatments while there were considerable differences in leaf photosynthesis and stomatal conductance, suggesting a near-isohydric behaviour of pomegranate trees.…”

Section: Pomegranatementioning

confidence: 99%

Sustainable Fruit Production in Mediterranean Orchards Subjected to Drought Stress

Sofo

Palese

Casacchia³

et al. 2011

Abiotic Stress Responses in Plants

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Drought stress is the main cause of reduced fruit tree growth and productivity in Mediterranean semi-arid regions and causes a complex of responses at molecular, cellular, physiological and developmental level. In particular, the response of fruit trees to water scarcity is a species-and cultivar-dependent and a series of studies have been carried out to clarify and deepen the mechanisms of their adaptation, avoidance, resistance or tolerance against drought. Considering that 16% of the total cultivable land of the Mediterranean area is occupied by fruit crops, the choice of an appropriate and rational irrigation management is of key importance. Furthermore, plant water status in an orchard is related to many biotic and abiotic factors, such as the amount of light intercepted, plant densities and canopy architecture, which play a key role in determining orchard productivity and fruit quality. The recent research on the physiology of fruit trees and on soil chemical and biological fertility in fruit orchards have revealed that sustainable and innovative soil management systems, with a particular emphasis on water management (e.g., sustained defi cit irrigation, regulated defi cit irrigation and partial root-zone drying), can determine an optimal plant nutritional equilibrium, avoid nutrients accumulation and leaching risks, improve irrigation effi ciency and prevent soil erosion and root asphyxia. The application, optimization and innovation of sustainable agricultural techniques with a low negative environmental impact allow to recover or increase the normal levels of total fertility in fruit agro-ecosystems, so

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Water relations of field grown Pomegranate trees (Punica granatum) under different drip irrigation regimes

Cited by 43 publications

References 14 publications

Responses of pomegranate cultivars to severe water stress and recovery: changes on antioxidant enzyme activities, gene expression patterns and water stress responsive metabolites

Responses of pomegranate cultivars to severe water stress and recovery: changes on antioxidant enzyme activities, gene expression patterns and water stress responsive metabolites

RESPONSES OF YOUNG Punica granatum PLANTS UNDER FOUR DIFFERENT WATER REGIMES

Sustainable Fruit Production in Mediterranean Orchards Subjected to Drought Stress

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