The Effect of Irrigation, Gibberellic Acid and Nitrogen on the Occurrence of Double Fruit in 'Van' Sweet Cherry

Engin, Hakan; Uenal, A.

doi:10.17660/actahortic.2008.795.100

Cited by 11 publications

(8 citation statements)

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“…These data support the fact that high temperatures during the early phases of the morphological differentiation of the pistil have a determining effect on double fruit disorder (Johnson et al 1992;Engin & Unal 2005). Engin & Unal (2005) also reported that the south side of a tree would produce more double fruits than the north side in sweet cherry.…”

Section: Discussionsupporting

confidence: 65%

Research on the physiological disorders and fruit quality of Cardinal peach

Engin

Şen

Pamuk

et al. 2010

New Zealand Journal of Crop and Horticultural Science

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This study was carried out on 'Cardinal' peach (Prunus persica L. Batsch) between 2003 and 2005 in Bornova, in Izmir, Turkey to study the effects of irrigation, gibberellic acid (GA 3 ) and nitrogen (urea) on the physiological disorders split or shattered pit, double fruit and fruit quality. Irrigation treatments that were tested included 100% (no water stress) and 20% (water stress) replenishment of water depleted from the 100% replenishment treatment at 60 cm soil profile at 10-day intervals. GA 3 and nitrogen (urea) were applied to trees during the flower bud differentiation period at doses of 100 mg L(1 and 900 mg L(1 , respectively. Irrigation, nitrogen and gibberellic acid exerted a significant influence on fruit disorders and quality of peach cv. 'Cardinal'. Although the rate of double fruit was increased by water stress, GA 3 and nitrogen application decreased it. Irrigation (100%) during the final swell phase of fruit development accelerated the occurrence of split and shattered pit. Application of nitrogen and gibberellic acid or both to the trees with no water stress resulted in the lowest number of fruits with physiological disorders. Fruit quality characteristics, except for titratable acidity, were not significantly altered by the treatments.

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Section: Discussionsupporting

confidence: 65%

Research on the physiological disorders and fruit quality of Cardinal peach

Engin

Şen

Pamuk

et al. 2010

New Zealand Journal of Crop and Horticultural Science

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“…In our experiment, however, severe water stress by restricting watering hardly affected the frequency of double pistils (Beppu and Kataoka, 1999a). Engin and Ünal (2008) and Engin et al (2009) also observed that drought stress treatments did not increase doubling, suggesting that water stress is not involved in doubling in sweet cherry. In plum, it was also reported that double fruit formation was not increased by postharvest water stress in summer (Johnson et al, 1994;Naor et al, 2004); therefore, the susceptibility to pistil doubling may be different among Prunus fruit tree species.…”

Section: ) Soil Moisturementioning

confidence: 89%

“…Regarding the yearly variation, it was shown that doubling occurred more severely in the spring following hotter weather in the previous summer (Engin and Ünal, 2008;Roversi et al, 2008;Tucker, 1934Tucker, , 1935. We also observed that the higher the temperature from mid-July to mid-August in the previous year, the higher the frequency of doubling (Beppu, 2000) (Fig.…”

Section: ) Occurrence Of Double Pistilsmentioning

confidence: 99%

“…On the other hand, the frequency of double pistils was low with the application of naphthalen acetic acid (NAA), abscisic acid (ABA), and gibberellin A 3 (GA 3 ) (Beppu et al, 2007b). Engin and Ünal (2008) and Engin et al (2009) confirmed that GA 3 treatment reduced the rate of double pistils, suggesting the possibility of applying phytohormones to prevent the occurrence of this disorder.…”

Section: ) Phytohormonesmentioning

confidence: 99%

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Studies on Pistil Doubling and Fruit Set of Sweet Cherry in Warm Climate

Beppu

Kataoka

2011

J. Japan. Soc. Hort. Sci.

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Recently, attempts have been made to produce sweet cherry in the warm region of Japan, although the occurrence of double fruit, resulting from double pistil formation, and poor fruit set due to frequent physiological fruit drop have become serious problems preventing stable production; however, the inducing factors have not been clarified. Therefore, we investigated the effects of environmental and nutritional conditions on the occurrence of double pistils and poor fruit set. Based on those results, we studied the regulation of pistil doubling and fruit set in this region. In this review, we summarize our studies on the reproduction of sweet cherry in a warm climate.

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“…An optimal water and nutrient management is of primary importance for cherry trees grown under semiarid conditions, and drip fertigation is a valid irrigation system for this species (Neilsen et al 2005 ) . Furthermore, water scarcity could determine an higher percentage of double fruits as well as a phytohormonal disequilibrium, with consequent losses of commercial product (Engin and Ünal 2008 ) .…”

Section: Plum and Cherrymentioning

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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The Effect of Irrigation, Gibberellic Acid and Nitrogen on the Occurrence of Double Fruit in 'Van' Sweet Cherry

Cited by 11 publications

References 0 publications

Research on the physiological disorders and fruit quality of Cardinal peach

Research on the physiological disorders and fruit quality of Cardinal peach

Studies on Pistil Doubling and Fruit Set of Sweet Cherry in Warm Climate

Sustainable Fruit Production in Mediterranean Orchards Subjected to Drought Stress

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