Effects of timing and intensity of deficit irrigation on vegetative and fruit growth of apricot trees

Pérez‐Pastor, Alejandro; Ruiz-Sánchez, M.C.; Miguel, Rafael Domingo

doi:10.1016/j.agwat.2013.12.007

Cited by 75 publications

(46 citation statements)

References 42 publications

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“…However, during the second growing season, pomegranate trees had a lower capacity for tolerating water restrictions (Melgarejo, 2001;Bhantana and Lazarovitch et al, 2010). Similar results were found for olive and cherry trees (Martín-Vertedor et al, 2011;Livellara et al, 2011), but there were no effects of irrigation regimes on canopy volume in peach trees (Pérez-Pastor et al, 2014). This study showed that canopy growth was at a maximum when soil watering was equivalent to 100% or 130% of evapotranspiration (ETc).…”

Section: Effects Of Irrigation On Vegetative Growthsupporting

confidence: 71%

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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Section: Effects Of Irrigation On Vegetative Growthsupporting

confidence: 71%

RESPONSES OF YOUNG Punica granatum PLANTS UNDER FOUR DIFFERENT WATER REGIMES

et al. 2016

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“…Pérez-Pastor et al (2014) confirmed that RDI led to yield reductions when water deficits were severe (>140 MPa-days of water stress integral) during noncritical periods. The maximum value obtained in the current study was ~ 120 MPa-days.…”

Section: Discussionsupporting

confidence: 60%

“…Apricot trees are highly sensitive to drought stress at particular phenological stages, such as stage III of fruit growth and during the 2 months after harvest (early postharvest) Pérez-Pastor et al, 2009). In contrast, researches about RDI strategies applied to apricot trees reported benefits such as higher values of total soluble solids, titratable acidity and hue angle in apricot fruits grown under RDI (Pérez-Pastor et al, 2009, 2014, although these results came from experiments undertaken during less than three years and, consequently, they need to be confirmed.…”

Section: Introductionmentioning

confidence: 95%

Effects of regulated deficit irrigation on physiology, yield and fruit quality in apricot trees under Mediterranean conditions

Pérez-Sarmiento

Mirás-Avalos

Alcobendas

et al. 2017

Span. j. agric. res.

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Scarce water resources mainly in arid and semi-arid areas have caused an increasing interest for applying irrigation protocols aiming to reduce water spends. The effects of regulated deficit irrigation (RDI) on the performance of apricot trees (Prunus armeniaca L. cv. "Búlida") were assessed in Murcia (SE Spain), during three consecutive growing seasons (2008)(2009)(2010). The hypothesis was that RDI would not restrict yield but increase fruit quality while saving water. Two irrigation treatments were established: i) control, irrigated to fully satisfy crop water requirements (100% ET c ) and ii) RDI, that reduced the amount of applied water to: a) 40% of ET c at flowering and stage I of fruit growth; b) 60% of ET c during the stage II of fruit growth and c) 50% and 25% of ET c during the late postharvest period (from 60 days after harvest). Stem water potential, gas exchanges, trunk cross-sectional area (TCSA), fruit diameter, yield and fruit quality traits were determined. Vegetative growth was decreased by the use of RDI (12% less TCSA on average for the three years), whereas yield was unaffected. In addition, some qualitative characteristics of the fruits, such as the level of soluble solids, sweetness/acidity relation and fruit colour, were improved by the use of RDI. These results and average water savings of approximately 30%, lead us to conclude that RDI strategies are a possible solution for irrigation management in areas with water shortages, such as arid and semi-arid environments.Additional keywords: fruit growth; photosynthesis; Prunus armeniaca L.; regulated deficit irrigation; stomatal conductance; water stress.

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“…Nevertheless, it is worth recalling that the root system of fruits trees under drip irrigation, especially those in semi-arid zones such as in the Mediterranean area, is practically restricted to the wetted zone of the soil, with most root activity concentrated just below the emitters (Fernández et al, 1992;RuizSánchez et al, 2005;Pérez-Pastor et al, 2014). As regard the effectiveness of using minirhizotrons to study peach root distribution, the results of both methods revealed a high degree of correlation (r=0.97***, Fig.…”

Section: Methodological Procedures Using Minirhizotronsmentioning

confidence: 99%

Root and aerial growth in early-maturing peach trees under two crop load treatments

Abrisqueta

Conejero

López-Martínez

et al. 2017

Span. j. agric. res.

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The objectives of the paper were to study the pattern of root growth (measured by minirhizotrons) in relation to trunk, fruit and shoot growth and the effects of crop load on tree growth and yield in peach trees. Two crop load (commercial and low) treatments were applied in a mature early-maturing peach tree orchard growing in Mediterranean conditions. Root growth dynamics were measured using minirhizotrons during one growing season. Shoot, trunk and fruit growth were also measured. At harvest, all fruits were weighed, counted and sized. Roots grew throughout the year but at lower rates during the active fruit growth phase. Root growth was asynchronous with shoot growth, while root and trunk growth rates were highest after harvest, when the canopy was big enough to allocate the photo-assimilates to organs that would ensure the following season's yield. Shoot and fruit growth was greater in the low crop load treatment and was accompanied by a non-significant increase in root growth. High level of fruit thinning decreased the current yield but the fruits were more marketable because of their greater size.Additional keywords: fruit growth; minirhizotrons; phenology; Prunus persica L. Batsch; root length density; vegetative growth

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Effects of timing and intensity of deficit irrigation on vegetative and fruit growth of apricot trees

Cited by 75 publications

References 42 publications

RESPONSES OF YOUNG Punica granatum PLANTS UNDER FOUR DIFFERENT WATER REGIMES

RESPONSES OF YOUNG Punica granatum PLANTS UNDER FOUR DIFFERENT WATER REGIMES

Effects of regulated deficit irrigation on physiology, yield and fruit quality in apricot trees under Mediterranean conditions

Root and aerial growth in early-maturing peach trees under two crop load treatments

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