Effects of salinity at two ripening stages on the fruit quality of single-truss tomato grown in hydroponics

Sakamoto, Yuka; Watanabe, Shinichi; Nakashima, Taiken; Okano, Kunio

doi:10.1080/14620316.1999.11511174

Cited by 69 publications

(49 citation statements)

References 19 publications

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“…Average maximum and minimum temperatures were 35.6 and 22.0°C, respectively. with high soluble solids have in fact been successfully obtained using this system (Araki et al, 2009;Sakamoto et al, 1999).…”

Section: Effect Of Timing Of Nutrient Concentration Increase Onmentioning

confidence: 99%

“…Because of the tradeoff between increased sugar concentration and fruit size, however, final yields per plant are markedly reduced. Saito et al (2006) and Sakamoto et al (1999) have also reported that addition of sodium chloride (NaCl) to nutrient solutions increases tomato fruit sugar concentrations, but tends to decrease fruit yield. BER and cracking also increase, further reducing the final yield per plant.…”

Section: Effect Of Timing Of Nutrient Concentration Increase Onmentioning

confidence: 99%

“…Previous studies have examined the effect of salinity stress at different growth stages in a low-truss, high-density tomato production system (Saito et al, 2006;Sakamoto et al, 1999), but a successful method for increasing sugar concentration without inhibiting fruit growth has not been identified. In the present study, we investigated the effect of moderate salinity stress, achieved by gradually increasing nutrient solution concentration, on sugar concentration and fruit yield.…”

Section: Effect Of Timing Of Nutrient Concentration Increase Onmentioning

confidence: 99%

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Effect of Moderate Salinity Stress on the Sugar Concentration and Fruit Yield in Single-truss, High-density Tomato Production System

Johkan

Nagatsuka

Yoshitomi

et al. 2014

J. Japan. Soc. Hort. Sci.

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To produce tomato fruits with 6% average Brix without decreasing yield, we investigated the effect of moderate salinity stress on Brix and yield in a single-truss, high-density tomato production system. Because tomato fruit development can be predicted from cumulative temperature, we also assessed cumulative temperature after anthesis as a potential indicator for determining the starting points of salinity stress treatments. When transverse diameters of the first fruit reached 4 cm (i.e., early increase treatment) or the first fruits were at the mature green stage (i.e., late increase treatment), nutrient solution electrical conductivity was slowly increased until the breaker stage from 1.8 dS·m -1 to 6.0 dS·m -1. Plants subjected to the late increase treatment produced tomato fruits with Brix values of 6% without reductions in marketable yield. We also increased nutrient solution electrical conductivity based on cumulative temperature after anthesis and found that early-treated plants produced tomatoes with higher Brix levels and yields than late-treated plants. In summary, moderate salinity stress to avoid excessive stress on plants increased sugar concentrations without decreasing fruit yield and resulted in tomato fruits with average Brix of about 6% when nutrient solution electrical conductivity was increased at a rate of 0.1 dS·m. Because seasonal differences in cumulative temperature influence the appropriate timing of salinity stress applications, further study is needed to optimize year-round growth under moderate salinity stress in single truss, high-density tomato production systems.

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Section: Effect Of Timing Of Nutrient Concentration Increase Onmentioning

confidence: 99%

Section: Effect Of Timing Of Nutrient Concentration Increase Onmentioning

confidence: 99%

Section: Effect Of Timing Of Nutrient Concentration Increase Onmentioning

confidence: 99%

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Effect of Moderate Salinity Stress on the Sugar Concentration and Fruit Yield in Single-truss, High-density Tomato Production System

Johkan

Nagatsuka

Yoshitomi

et al. 2014

J. Japan. Soc. Hort. Sci.

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“…Although many deleterious effects of salt on tomato plant growth and fruit production have been reported [9], in some cases, moderate salt stress can improve fruit quality [8,21,27,31,33]. Tomato plants irrigated with saline solutions transpire less water than tomatoes receiving fresh water [29,30,35], and the use of saline irrigation water as part of the integrated approach described by Ragab [28] has been pointed out by ReinaSánchez et al [29].…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

Differences in photosynthetic performance and its correlation with growth among tomato cultivars in response to different salts

Nebauer

Sanchez

Martínez

et al. 2013

Plant Physiology and Biochemistry

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ElsevierGonzález Nebauer, S.; Sánchez Perales, M.; Martinez, L.; Lluch Gomez, YP.; Renau Morata, B.; Molina Romero, RV. (2013). Differences in the photosynthetic response of three tomato cultivars to different salinity sources and their effect on vegetative growth parameters. Plant This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. treatments. Cultivar photosynthetic performance related not only to capability for toxic ion exclusion, but also to the maintenance of appropriate essential macronutrient concentrations in leaves. In addition, the role of metabolic and diffusion limitations in regulating photosynthesis varied depending on the studied genotypes. These data, along with variation in biomass and ion distribution in leaves and roots, show that distinct tomato cultivars can address salt tolerance differently, which should be considered when designing strategies to overcome plant sensitivity to salt stress.

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“…This system could select the tomato cultivar and control the cultivation management of tomato fruit production throughout the year and decreased the risk of disease and pest incidence. A single-truss tomato production system, which is the simplest cultivation system utilizing a low truss number and high plant density, is utilized with supplemental lighting (Lu et al, 2012a, b;McAvoy et al, 1988McAvoy et al, , 1989, tomato production with high soluble solids (Araki et al, 2009;Sakamoto et al, 1999) and automated cultivation (Giacomelli et al, 1994;Okano et al, 2001). However, there are few reports of a threetruss tomato production system in which the yield per plant can be higher than that of a single-truss system.…”

Section: Introductionmentioning

confidence: 99%

Improved Light Conditions at the Fruit Truss Accelerate Harvest Time and Enhance Ascorbic Acid Concentration in a Low-truss, High-density Tomato Production System

Johkan

Ishii

Maruo

et al. 2013

J. Japan. Soc. Hort. Sci.

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Light conditions are poor around the lower trusses of tomato plants in a low truss number, high plant density production system. We determined the effects of leaf rearrangements above the fruit trusses on fruit maturation and quality in tomato plants pinched above the third truss and cultivated under a high-density growing system. Integrated solar radiation at first and second fruit trusses and surface temperature of fruits at second fruit truss were increased in plants treated with leaf rearrangements above the trusses compared with those of the control, and the maturation of fruits at the third truss treated with leaf rearrangement was 4.6 days earlier than that of the control. The concentration of ascorbic acid (AsA) in fruits of plants treated with leaf rearrangement was higher than that of control fruits. However, leaf rearrangement had no effect on yield and Brix of the fruit. These results indicated that higher solar radiation together with leaf rearrangement promoted fruit maturation and increased AsA content in the fruit of lower trusses of tomato plants cultivated under a low truss number, high plant density growing system.

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Effects of salinity at two ripening stages on the fruit quality of single-truss tomato grown in hydroponics

Cited by 69 publications

References 19 publications

Effect of Moderate Salinity Stress on the Sugar Concentration and Fruit Yield in Single-truss, High-density Tomato Production System

Effect of Moderate Salinity Stress on the Sugar Concentration and Fruit Yield in Single-truss, High-density Tomato Production System

Differences in photosynthetic performance and its correlation with growth among tomato cultivars in response to different salts

Improved Light Conditions at the Fruit Truss Accelerate Harvest Time and Enhance Ascorbic Acid Concentration in a Low-truss, High-density Tomato Production System

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