Yield and growth of mature pear trees under water deficit during slow fruit growth stages in sparse planting orchard

Yang, Wei Qiang; Zhao, Zijian; Wang, Wei; Ying-jie, MA; Huang, Xingfa

doi:10.1016/j.scienta.2013.09.025

Cited by 22 publications

(25 citation statements)

References 32 publications

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“…3) and lower in T1 (100% Etc), with averages of 13.67, 14.38 and 14.91°Brix, for T1, T2 and T3 respectively, similar values found by Wu et al (2013), in Pyrus bretschneideri Rehd with applications of 60 and 40% ETc, and higher than those reported by Parra et al (1998) There is statistical difference in the first measurement, T3 (0% Etc) had the highest values (Fig. 4), with averages of 0.32, 0.43 and 0.48% malic acid in T1 (100%), T2 (25%) and T3 (0%), respectively, at 2 DAH.…”

Section: Resultssupporting

confidence: 84%

“…In addition, a significant difference (P≤0.05) was found between T1 control treatment (100% Etc) and T3 deficiency irrigation treatment (0% Etc) It is observed in figure 8 that T3 (0% Etc) presented the highest values of firmness, since it was the treatment subjected to a more intense water stress, the fruit has lower contents of water and for this the effect of a greater firmness (Wu et al, 2013). Caspari et al (1996) found that by subjecting the Hosui pear variety in the growing stage to water stress, with a water laminae of 75% of the soil capacity, the firmness of the fruit was 37.5 N, which was higher than the control.…”

Section: Resultsmentioning

confidence: 88%

“…Several studies have shown that CDI increases flowering and, hence, the number of fruits. A deficit imposed before the fruit growth period increases yield without causing negative effects on size and quality, as compared to normal irrigation (Wu et al, 2013;Molina, 2014;Diaz et al, 2016)Xinjiang, China, which is in an oasis around Taklimakan desert, to investigate the effects of regulated deficit irrigation (RDI.…”

Section: Introductionmentioning

confidence: 99%

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Effect of deficit irrigation on the postharvest of pear variety Triunfo de Viena (Pyrus communis L.) in Sesquile (Cundinamarca, Colombia)

Bayona-Penagos¹,

Vélez-Sánchez²,

Rodríguez-Hernández³

2017

Agron. colomb.

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A technique settled to optimize the use of water resources is known as Controlled Deficient Irrigation (CDI), for which this experiment was carried out to determine the effect of a three water laminae: 100 (T1), 25 (T2) and 0% (T3) crop's evapotranspiration (ETc) on the rapid growth phase of the pear fruit variety Triunfo de Viena.The fruit quality (fresh weight variation, osmotic potential, color, acidity, soluble solids, CO2 emission, dry matter, volume, firmness, ripeness index and moisture content) was evaluated over a two-month storage period. The first quality measurement was taken 2 days after harvest (DAH 8), with significant differences between treatments according to the Duncan test (P≤0.05):the largest fruit size was achieved with 100% ETc, (its diameter and volume were 7.70 cm and 217.5 cm3, respectively.), the firmness was higher in the treatment without water (T3), with a value of 8.02 N; however, during the rest of the storage time, there were no significant differences, showing water restriction during the rapid growth phase of the fruit provided 100% water savings without compromising quality in terms of fresh weight, total titratable acidity, color index, total soluble solids and moisture content.

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Section: Resultssupporting

confidence: 84%

Section: Resultsmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

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Effect of deficit irrigation on the postharvest of pear variety Triunfo de Viena (Pyrus communis L.) in Sesquile (Cundinamarca, Colombia)

Bayona-Penagos¹,

Vélez-Sánchez²,

Rodríguez-Hernández³

2017

Agron. colomb.

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“…The present season's growing conditions have a smaller impact compared to annual crops, as the amount of fruit buds (i.e., production potential) is influenced by crop load [45] and the plants' water status [27,39,46] of the previous growing season [1]. The correlation between production variables and vegetation indices most likely stemmed from the association with vegetative growth and the relationship between vegetative growth, water status and production [14,47,48]. Trees with more vegetative growth produced less flower buds (i.e., decreased number of fruits and total yields), as a result of the considerable consumption of water from excessive vegetative growth [47].…”

Section: Potential and Limitationsmentioning

confidence: 99%

Temporal Dependency of Yield and Quality Estimation through Spectral Vegetation Indices in Pear Orchards

et al. 2015

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Yield and quality estimations provide vital information to fruit growers, yet require accurate monitoring throughout the growing season. To this end, the temporal dependency of fruit yield and quality estimations through spectral vegetation indices was investigated in irrigated and rainfed pear orchards. Both orchards were monitored throughout three consecutive growing seasons, including spectral measurements (i.e., hyperspectral canopy reflectance measurements) as well as yield determination (i.e., total yield and number of fruits per tree) and quality assessment (i.e., fruit firmness, total soluble solids and fruit color). The results illustrated a clear association between spectral vegetation indices and both fruit yield and fruit quality (|r| > 0.75; p < 0.001). However, the correlations between vegetation indices and production variables varied throughout the growing season, depending on the phenological stage of fruit development. In the irrigated orchard, index values showed a strong association with production variables near time of OPEN ACCESSRemote Sens. 2015, 7 9887 harvest (|r| > 0.6; p < 0.001), while in the rainfed orchard, index values acquired during vegetative growth periods presented stronger correlations with fruit parameters (|r| > 0.6; p < 0.001). The improved planning of remote sensing missions during (rainfed orchards) and after (irrigated orchards) vegetative growth periods could enable growers to more accurately predict production outcomes and improve the production process.

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“…Algunos investigadores han estudiado esta estrategia de riego deficitario en peral en condiciones no tropicales, reduciendo los aportes de agua tanto durante la primera etapa de desarrollo del fruto (Chalmers et al, 1986;Marsal et al, 2002;Wu et al, 2013) como después de la cosecha (Naor, 2006;Marsal et al, 2002Marsal et al, , 2012, con lo que se obtienen considerables ahorros de agua sin afectar la producción ni la calidad de la fruta.…”

Section: Introductionunclassified

Resultados preliminares del efecto del riego deficitario durante el periodo de crecimiento rápido del fruto de pera (var. Triunfo de Viena) en la producción y calidad del fruto

Molina-Ochoa

Vélez-Sánchez

Galindo-Egea

2015

Rev. Colomb. Cienc. Hortic.

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Plantulas de tomate.Foto: Álvarez-Herrera.Resultados preliminares del efecto del riego deficitario durante el periodo de crecimiento rápido del fruto de pera (var. Triunfo de Viena) en la producción y calidad del fruto Preliminary results of the effect of deficit irrigation during the rapid growth of the pear fruit on production and quality of Triunfo de Viena variety RESUMENEl objetivo de este trabajo se centró en estudiar la respuesta del peral (var. Triunfo de Viena) al riego deficitario durante la fase de crecimiento rápido del fruto. Para ello, durante la campaña 2011-2012, en una plantación de árboles adultos se aplicaron tres tratamientos de riego localizado. El tratamiento control (T0) se regó al 100% de la ETc durante toda la temporada, el T1 se regó como el control, excepto durante el periodo de crecimiento rápido del fruto, en el que se regó al 67% de la ETc, y el T2 que se regó al 100% de la ETc durante toda la temporada, excepto durante el mismo periodo que el T1 en el que se regó al 55% de la ETc. Los resultados preliminares obtenidos mostraron cómo, a pesar de la necesidad de su confirmación en ensayos posteriores, las condiciones ecuatoriales colombianas pueden permitir ahorros de agua de hasta un 30% durante la fase de rápido crecimiento del fruto, coincidente con el periodo de máxima demanda evaporativa, sin afectar la producción ni las características físicas ni químicas de los frutos.

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Yield and growth of mature pear trees under water deficit during slow fruit growth stages in sparse planting orchard

Cited by 22 publications

References 32 publications

Effect of deficit irrigation on the postharvest of pear variety Triunfo de Viena (Pyrus communis L.) in Sesquile (Cundinamarca, Colombia)

Effect of deficit irrigation on the postharvest of pear variety Triunfo de Viena (Pyrus communis L.) in Sesquile (Cundinamarca, Colombia)

Temporal Dependency of Yield and Quality Estimation through Spectral Vegetation Indices in Pear Orchards

Resultados preliminares del efecto del riego deficitario durante el periodo de crecimiento rápido del fruto de pera (var. Triunfo de Viena) en la producción y calidad del fruto

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