Alternate partial root-zone drying irrigation improves fruit quality in tomatoes

Sun, Yong; Holm, Peter E.; Liu, F.

doi:10.17221/259/2013-hortsci

Cited by 35 publications

(22 citation statements)

References 32 publications

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“…Tomato is tasty and nutritional and constitutes an important source of minerals, vitamins, and antioxidants that are essential for human health ( Sun et al, 2014 ). The quality attributes including fruit firmness (FM), minerals, concentrations of total soluble solids (TSS), sugars, and organic acids (OAs), as well as their ratio determine not only the sweetness and sourness but also the overall flavor intensity of tomato fruits ( Jones and Scott, 1984 ).…”

Section: Introductionmentioning

confidence: 99%

Interactive Effects of Elevated CO2 and N Fertilization on Yield and Quality of Tomato Grown Under Reduced Irrigation Regimes

Wei

et al. 2018

Front. Plant Sci.

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The interactive effects of CO2 elevation, N fertilization, and reduced irrigation regimes on fruit yield (FY) and quality in tomato (Solanum lycopersicum L.) were investigated in a split-root pot experiment. The plants were grown in two separate climate-controlled greenhouse cells at atmospheric [CO2] of 400 and 800 ppm, respectively. In each cell, the plants were fertilized at either 100 or 200 mg N kg-1 soil and were either irrigated to full water holding capacity [i.e., a volumetric soil water content of 18%; full irrigation (FI)], or using 70% water of FI to the whole pot [deficit irrigation (DI)] or alternately to only half of the pot [partial root-zone irrigation (PRI)]. The yield and fruit quality attributes mainly from sugars (sucrose, fructose, and glucose) and organic acids (OAs; citric acid and malic acid) to various ionic (NH4+, K+, Mg2+, Ca2+, NO3-, SO42-, and PO43-) concentrations in fruit juice were determined. The results indicated that lower N supply reduced fruit number and yield, whereas it enhanced some of the quality attributes of fruit as indicated by greater firmness and higher concentrations of sugars and OAs. Elevated [CO2] (e[CO2]) attenuated the negative influence of reduced irrigation (DI and PRI) on FY. Principal component analysis revealed that the reduced irrigation regimes, especially PRI, in combination with e[CO2] could synergistically improve the comprehensive quality of tomato fruits at high N supply. These findings provide useful knowledge for sustaining tomato FY and quality in a future drier and CO2-enriched environment.

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Section: Introductionmentioning

confidence: 99%

Interactive Effects of Elevated CO2 and N Fertilization on Yield and Quality of Tomato Grown Under Reduced Irrigation Regimes

Wei

et al. 2018

Front. Plant Sci.

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“…Cultivation in inert substrate using split-root system into two parts has been adopted to save water and improve the quality of various vegetables, such as tomato (Sun et al, 2014) and pepper (Shao et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Strategies of fertigation with saline water for growing cucumber in a greenhouse

Oliveira

Neta

Miranda

et al. 2017

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe objective of this study was to evaluate the use of saline water to grow cucumbers cultivated in substrate composed of coconut fiber and washed fine sand (1:1) and submitted to splitroot system. The experimental design was completely randomized, with eight treatments and four replicates. Treatments consisted of different fertigation managements, comprising two nutrient solutions of different electrical conductivities (1.65 and 6.25 dS m -1 ), applied in a continuous or alternated way, with splitting or not of the root system (S/S). Growth and yield variables were evaluated. The use of water with electrical conductivity of 6.25 dS m -1 to prepare the nutrient solution caused significant reduction in all variables of cucumber growth and production. Adoption of split-root system with simultaneous application of the two water types increased cucumber tolerance to salinity.Estratégias de fertirrigação com água salina na cultura do pepino em ambiente protegido R E S U M O O objetivo deste trabalho foi avaliar o uso de água salina na cultura do pepineiro cultivado com substrato composto por fibra de coco e areia fina lavada (1:1) utilizando o método de divisão do sistema radicular. O experimento foi realizado com o uso do delineamento inteiramente casualizado, com oito tratamentos e quatro repetições. Os tratamentos foram obtidos pela combinação de dois níveis de salinidade da solução nutritiva (1,65 e 6,25 dS m -1

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“…Compared with conventional furrow irrigation (CFI), alternate furrow irrigation (AFI) maintained same photosynthetic rate (Pn) but with a decreased transpiration rate in grape, meanwhile, AFI increased Vitamin C and decreased titrated acidity of berry [10] . Sun et al [11] indicated that PRD increased fruit juice concentrations of total soluble solid, glucose, fructose and malic acid. Wei et al [12] used carbon isotope discrimination to show that APRI increased water use efficiency of tomato at leaf and yield scales.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of tomato fruit quality response to water and nitrogen management under alternate partial root-zone irrigation

Yang

Cao

Hao

et al. 2017

International Journal of Agricultural and Biological Engineering

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A pot experiment was conducted to investigate the effects of different water and nitrogen supply amounts on the comprehensive assessment of tomato fruit quality and root growth parameters under alternate partial root-zone irrigation. Three upper irrigation limitations (i.e. 70% (W1), 80% (W2) and 90% (W3) of field capacity, respectively) and three N-fertilizer levels (i.e. 0.18 (N1), 0.30 (N2) and 0.42 (N3) g/kg soil, respectively) were arranged with a randomized complete block design, and alternate partial root-zone irrigation method was applied. Results showed that fruit yields under deficit irrigation (W1 and W2) were decreased by 6.9% and 2.0% respectively compared with W3 under N1 level. Yields of tomato under W1N1 and W1N2 combinations were also reduced by 10.3% and 7.2%, respectively compared with W1N3 combination. Root dry weight, root length, root surface area and root volume were all increased in W1N2 treatment. According to two-way ANOVA, the root parameters except root dry weight, were extremely sensitive to water, nitrogen and the cross effect of the two factors. TSS (total soluble solids), SS (soluble sugars) and OA (organic acid) in the fruits increased with the decrease in irrigation water, OA and NC reduced with decreasing amount of nitrogen. Moreover, within an appropriate range, as more irrigation water and nitrogen were applied, the higher VC (vitamin C) and lycopene contents were identified in the fruits. Eventually, the combinational evaluation method (i.e. entropy method and gray relational analysis) showed that W2N2 ranked highest in comprehensive fruit quality. Therefore, considering the tradeoff between fruit comprehensive quality and yields, upper irrigation limitation of 80% θ f and N-fertilizer of 0.30 g/kg soil with alternate partial root-zone irrigation was the optimal cultivation strategy for the greenhouse tomato in autumn-winter season in northwest China.

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Alternate partial root-zone drying irrigation improves fruit quality in tomatoes

Cited by 35 publications

References 32 publications

Interactive Effects of Elevated CO2 and N Fertilization on Yield and Quality of Tomato Grown Under Reduced Irrigation Regimes

Interactive Effects of Elevated CO2 and N Fertilization on Yield and Quality of Tomato Grown Under Reduced Irrigation Regimes

Strategies of fertigation with saline water for growing cucumber in a greenhouse

Evaluation of tomato fruit quality response to water and nitrogen management under alternate partial root-zone irrigation

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