The effect of regulated deficit irrigation on tree water use and growth of peach

Boland, Anne-Maree; Mitchell, P. D.; Jerie, P. H.; Goodwin, Ian

doi:10.1080/00221589.1993.11516351

Cited by 72 publications

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“…Applying water to fruit trees is a widely used practice, but efficient water use has become important only in recent years due to the rapid depletion of available water resources in some areas. Much effort, such as regulated deficit irrigation (RDI), fixed partial root-zone drying (FPRD) and alternative partial root-zone drying and watering (APRD), has been spent on improving water-use efficiency (WUE) on field and fruit crops (Goodwin and Jerie 1992;Boland et al, 1993;Loveys et al, 1997;Dry and Loveys, 1998;Kang et al, 1997Kang et al, , 1998Kang et al, , 2000, and substantial progress has been made over the last decade.…”

Section: Introductionmentioning

confidence: 99%

Transpiration coefficient and ratio of transpiration to evapotranspiration of pear tree (Pyrus communis L.) under alternative partial root‐zone drying conditions

Kang

Hu²,

Du³

et al. 2002

Hydrological Processes

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Abstract:Transpiration coefficient K cb , crop coefficient K c , and the ratio of transpiration to evapotranspiration (T/ET) are important parameters for pear orchard irrigation management and may vary with different methods of irrigation. This study investigated their changes under three irrigation methods: conventional flood irrigation (CFI), fixed partial rootzone drying and irrigation (FPRD) and alternative partial root-zone drying and irrigation (APRD), in a semi-arid region of Victoria, Australia. The average seasonal ET was 865Ð29, 795Ð63 and 804Ð72 mm respectively for CFI, FPRD, and APRD with ET 0 of 817Ð59 mm for the pear fruiting season. The seasonal transpiration accounted for 81Ð1%, 84Ð4%, and 84Ð1% of evapotranspiration for CFI, FPRD, and APRD respectively. For the CFI, FPRD, and APRD treatments, the seasonal average K c were 1Ð058, 0Ð973, and 0Ð984 (with their maximum values of 1Ð326, 1Ð211, and 1Ð257) respectively similarly, the respective seasonal average K cb were 0Ð858, 0Ð822, and 0Ð828 (with maximum values of 1Ð059, 1Ð024, and 1Ð054). The relationships between K cb , K c , T/ET, and days after the season beginning were fitted to a fifth-order polynomial equation with higher coefficients of determination R 2 . The maximum K c and K cb occurred in mid-January. The ratio T/ET varied from 0Ð736 to 0Ð909, 0Ð743 to 0Ð947, and 0Ð741 to 0Ð925 in the pear fruiting season for CFI, FPRD, and APRD treatments respectively. Results suggested that APRD and FPRD can improve the ratio of transpiration to evapotranspiration, and reduce transpiration coefficient and crop coefficient. Such effects should help improve of water-use efficiency in pear orchards.

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Section: Introductionmentioning

confidence: 99%

Transpiration coefficient and ratio of transpiration to evapotranspiration of pear tree (Pyrus communis L.) under alternative partial root‐zone drying conditions

Kang

Hu²,

Du³

et al. 2002

Hydrological Processes

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“…These changes in plant metabolism by mild water stress may increase the quality of the fruit and wine produced Anderson, 1988, 1989). The deliberate restriction of irrigation water may, therefore, be a legitimate management strategy to manipulate crop water use and this is embodied in the technique known as regulated deficit irrigation (RDI) (Boland et al, 1993;Alegre et al, 1999;Dry et al, 2001). However, accurate monitoring of both vine and soil moisture status is required, and RDI may also result in changes to specific characteristics such as the size of grape berries (McCarthy, 1997).…”

Section: Introductionmentioning

confidence: 99%

Control of stomatal aperture and carbon uptake by deficit irrigation in two grapevine cultivars

Souza

Marôco

Santos³

et al. 2005

Agriculture, Ecosystems & Environment

139

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Improvements in water use efficiency of crops are essential under the scenarios of water scarcity predicted by global change models for the Mediterranean region. In recent years, deficit irrigation, including partial root drying (PRD), has been proposed as an irrigation technique to improve water use efficiency and standardize grapevine yield and quality. The objective of this study was to evaluate the impact of deficit irrigation on photosynthetic responses of field grown grapevines of cv. Moscatel and Castelão. The treatments were: full irrigation (FI), corresponding to 100% ET c ; non-irrigated, but rain fed (NI) and partial root zone drying (PRD) and deficit irrigation (DI), both corresponding to an irrigation of 50% ET c . While in the DI treatment water was applied to both sides of the root system, in the PRD treatment, water was supplied to only one side of the root system, alternating sides periodically. In both cultivars, PRD and DI vines showed intermediate pre-dawn leaf water potential (c pd ) values (around À0.4 MPa) while FI vines, showed c pd around À0.2 MPa during the growing season. NI showed the lowest c pd , reaching À0.6 MPa in Moscatel and À0.8 MPa in Castelão, at the end of growing season. Water status of PRD vines remained closer to FI than DI, especially at midday. Photosynthetic rates and fluorescence parameters of the deficit irrigation treatments (PRD and DI) did not show significant differences from FI vines, for most of the season. In Moscatel, although PRD generally showed g s , relative stomatal limitation (RSL) and intrinsic water use efficiency (A/g s ) values closer to NI than DI, most of the differences between PRD and DI were not statistically significant. Our results showed a stability of the photosynthetic machinery in grapevines under low-to-moderate water availabilities, as demonstrated by the maintenance of the activity of three Calvin Cycle enzymes and of the V cmax values. However, a decline in J max was observed in NI vines, that can be a result either of a decrease in ATP production or, alternatively, of decreased mesophyll conductance to CO 2 diffusion. In general terms, stomatal limitation of photosynthesis is likely to be dominant in non-irrigated plants. Deficit irrigation had no negative impact on CO 2 assimilation, despite less water application than in full-irrigation. Differences among varieties may be related to differences in sensitivity of stomata, shoot growth and/or the interaction between rootstock and cultivar to soil water availability. #

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“…Since RDI was f irst adopted in peach orchards, many studies have shown that its application during stage II of fruit development provides beneficial effects for peach trees (Chalmers et al, 1981;Mitchell and Chalmers, 1982;Li et al, 1989;Williamson and Coston, 1990;Boland et al, 1993Boland et al, , 2000Girona et al, 2003Girona et al, , 2005Gelly et al, 2004). However, this is not always the case, and a number of authors have reported negative influences on fruit growth capacity when RDI was applied during stage II (Girona, 1989(Girona, , 2003Goldhamer et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Response of peach trees to regulated deficit irrigation during stage 2 of fruit development and summer pruning

López

Arbonés

Campo

et al. 2008

Span. j. agric. res.

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Regulated deficit irrigation (RDI) during stage II of fruit development and summer pruning (watersprout removal, WSR) can be used to control excessive vegetative growth in high-density peach orchards. The dynamics of tree-light interception after the application of RDI (no irrigation during stage II) and WSR in summer were evaluated during two consecutive years. RDI and WSR treatments produced similar reductions in the percentage of light intercepted by the tree at the end of the 2-year experiment. However, it was not possible to produce the same seasonal dynamics in the percentage of light intercepted by the tree using the RDI and the WSR techniques; RDI trees showed a gradual reduction in the amount of light intercepted as the productive cycle progressed, while WSR trees showed an immediate reduction in the amount of light intercepted. Moreover, the mechanisms responsible for vegetative growth reduction were different in the RDI and the WSR techniques. The RDI technique was associated with reductions in tree water status and decreases in gravimetric soil water (θg) and fruit growth capacity. RDI may have reduced θg below the threshold required for optimum fruit growth, whereas WSR reduced water consumption, improved water status and therefore could have benefited fruit growth. Therefore, RDI and WSR greatly differ when the mechanisms responsible for vegetative growth reduction are taken into consideration.Additional key words: crop load, fruit quality, light interception, Prunus persica L. Batsch, soil water, stem water potential, water stress. ResumenRespuestas del melocotonero al riego deficitario controlado durante la fase II de crecimiento del fruto y a la poda de verano El riego deficitario controlado (RDI) durante la fase II de crecimiento del fruto y la poda de chupones en verano (WSR) podrían usarse para controlar el exceso de crecimiento vegetativo en plantaciones de melocotonero de alta densidad. Se estudió el papel de la reducción en la radiación interceptada por el árbol tras la aplicación de un RDI durante la fase II (supresión total de riego) y la WSR durante dos años consecutivos. Ambas técnicas produjeron una reducción similar en la radiación interceptada por el árbol al final del experimento. Sin embargo, la dinámica estacional de la radiación interceptada por el árbol fue diferente entre WSR y RDI. La WSR produjo una disminución inmediata en el porcentaje de radiación interceptada por el árbol, mientras que el RDI produjo una disminución paulatina a medida que avanzó la campaña. Además, los mecanismos promotores de la reducción del crecimiento vegetativo fueron diferentes. El RDI afectó negativamente al estado hídrico del árbol, a la cantidad gravimétrica de agua en el suelo (θg) y al crecimiento del fruto. Mientras que el RDI parece reducir el θg por debajo del umbral necesario para obtener un crecimiento de fruto óptimo, una disminución en el consumo de agua tras la WSR habría mejorado el estado hídrico del árbol para finalmente beneficiar el crecimiento del fruto. Aunque el RDI y l...

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The effect of regulated deficit irrigation on tree water use and growth of peach

Cited by 72 publications

References 0 publications

Transpiration coefficient and ratio of transpiration to evapotranspiration of pear tree (Pyrus communis L.) under alternative partial root‐zone drying conditions

Transpiration coefficient and ratio of transpiration to evapotranspiration of pear tree (Pyrus communis L.) under alternative partial root‐zone drying conditions

Control of stomatal aperture and carbon uptake by deficit irrigation in two grapevine cultivars

Response of peach trees to regulated deficit irrigation during stage 2 of fruit development and summer pruning

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