Effects of Root Cooling on Plant Growth and Fruit Quality of Cocktail Tomato during Two Consecutive Seasons

Fang, He; Thiele, Björn; Watt, Michelle; Kraska, Thorsten; Ulbrich, Andreas; Kuhn, Arnd J.

doi:10.1155/2019/3598172

Cited by 18 publications

(21 citation statements)

References 106 publications

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“…Similarly, the nutrient solution at 10 • C was beneficial for raising both RA and luteolin concentrations and the contents of the whole plant in red perilla (Perilla frutescens, Labiatae) [10]. Bioactive compounds in the tomatoes (Solanum lycopersicum L.) were increased under cold stress at 10 • C [39]. Low root temperature at 10 • C caused water stress, which increased the sugar concentrations in the tomatoes [39].…”

Section: Rosmarinic Acid (Ra) Tilianin and Acacetin Concentrations And Contentsmentioning

confidence: 99%

“…Bioactive compounds in the tomatoes (Solanum lycopersicum L.) were increased under cold stress at 10 • C [39]. Low root temperature at 10 • C caused water stress, which increased the sugar concentrations in the tomatoes [39]. Furthermore, the high RZT treatment at 33 • C increased the total phenolic compound content in the carrots (Daucus carota L.) [14].…”

Section: Rosmarinic Acid (Ra) Tilianin and Acacetin Concentrations And Contentsmentioning

confidence: 99%

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The Effects of Root Temperature on Growth, Physiology, and Accumulation of Bioactive Compounds of Agastache rugosa

et al. 2020

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Plants respond to root temperature stresses by producing antioxidants as a defense mechanism. Since a number of these are phytochemicals with enhancing effects on human health, we examined the effects of 4 root-zone temperature (RZT) treatments (10, 20, 28, and 36 °C) on plant growth and the main bioactive compound concentrations in each organ of Agastache rugosa plants. We aimed to determine the optimal RZT treatment to increase bioactive compound concentrations with no deleterious effects on plant growth. Four-week-old seedlings were grown in a plant factory for 32 days. Nine plant growth parameters, namely, shoot and root fresh weights, stem and root lengths, leaf length and leaf width, leaf area, and shoot and root dry weights were significantly decreased at 10 and 36 °C compared with other treatments. A similar pattern was observed for the chlorophyll content and leaf gas exchange parameters. Of all the RZT treatments, RZT at 28 °C produced the significantly greatest accumulation of two major bioactive compounds, namely, rosmarinic acid (RA) and tilianin contents per the A. rugosa plant, and had no adverse effects on the overall growth of A. rugosa. This supports the use of 28 °C RZT to successfully improve the bioactive compounds with no adverse influence on plant growth or yield.

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Section: Rosmarinic Acid (Ra) Tilianin and Acacetin Concentrations And Contentsmentioning

confidence: 99%

Section: Rosmarinic Acid (Ra) Tilianin and Acacetin Concentrations And Contentsmentioning

confidence: 99%

The Effects of Root Temperature on Growth, Physiology, and Accumulation of Bioactive Compounds of Agastache rugosa

et al. 2020

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“…Recently, research on the nutritional value of crops under different soil conditions (roots) has received increasing attention ( Jansen et al, 2012 ; He et al, 2019 ). Bao et al (2006) investigated the soil nutrient status of Newhall navel orange orchard in Hubei Province and its effect on fruit quality.…”

Section: Introductionmentioning

confidence: 99%

Effects of Soil Type on Trace Element Absorption and Fruit Quality of Pepper

et al. 2021

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The inbred “SJ11-3” pepper was cultured in yellow brown soil, paddy soil, fluvo-aquic soil, and pastoral soil, and the factors affecting the absorption of trace elements and fruit quality were analyzed. The results showed that the physicochemical properties of the soils were significantly different, which led to differences in the nutritional quality of pepper fruits. The pH value had a significant effect on the absorption of trace elements in pepper. The increase of pH promoted the absorption of magnesium and molybdenum but inhibited the absorption of zinc, copper, manganese, and iron. The stepwise multivariable regression analysis showed that the amount of molybdenum in soil was the main factor affecting the total amino acid content of pepper. Total nitrogen, zinc, and copper were the main factors that contributed to the soluble sugar content of pepper, and the available potassium was the major determinant of the vitamin C content of pepper. This study provides new insight on the pepper fruit quality grown on different types of soil with varying levels of trace elements.

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“…In hydroponically grown carrots, a 14-day treatment with an elevated nutrient solution temperature increased the total phenolic compounds and soluble solid content [10]. Similarly, our previous studies of the effects of root temperature on food quality of Chinese broccoli [14] and cocktail tomato [15] have shown that long-term root cooling can be used as a strategy to accumulate high levels of phytochemicals such as sugar, chlorophyll, lycopene and glucosinolates with potential practical applications.…”

Section: Introductionmentioning

confidence: 56%

Effects of Short-Term Root Cooling before Harvest on Yield and Food Quality of Chinese Broccoli (Brassica oleracea var. Alboglabra Bailey)

et al. 2021

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Vegetable product quality is an important consideration for consumers. Long-term root cooling could improve certain food quality of horticultural crops, but often comes at the expense of reduced shoot biomass or yield. Since few studies have investigated how fast Chinese broccoli (Brassica oleracea var. alboglabra Bailey) responds to changes of root temperature, we shortened the duration of the root cooling treatment to one week before harvest to make the production system more effective. The aim of this study was to improve the food quality of Chinese broccoli without causing deleterious effects on plant growth and yield. The seedlings were cultivated hydroponically at two root temperatures (10 and 20 °C) during the last week prior to harvest in summer 2018 (Exp-1) and autumn 2019 (Exp-2). Plant growth, yield, physiological variables, soluble sugars, total chlorophyll, glucosinolates and mineral elements concentration were examined. The results showed that the yield reduction was alleviated compared to results over the long-term. Specifically, yield was not affected by root cooling in Exp-1 and reduced by 18.9% in Exp-2 compared to 20 °C. Glucose and fructose concentrations of the leaves were increased when the root temperature was 10 °C in both experiments with a more pronounced impact in Exp-2. In addition, root cooling produced a significant accumulation of individual glucosinolates, such as progoitrin, gluconapin, 4-methoxyglucobrassicin and 4-hydroxyglucobrassicin, in the stems of Exp-1 and the leaves of Exp-2. Minerals, such as N, showed reductions in the shoot, but accumulation in the root. Therefore, compared to long-term root cooling, short-term (one week) reduction of the root temperature is more economical and could help improve certain quality characteristics of Chinese broccoli with less or even no yield reduction.

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Effects of Root Cooling on Plant Growth and Fruit Quality of Cocktail Tomato during Two Consecutive Seasons

Cited by 18 publications

References 106 publications

The Effects of Root Temperature on Growth, Physiology, and Accumulation of Bioactive Compounds of Agastache rugosa

The Effects of Root Temperature on Growth, Physiology, and Accumulation of Bioactive Compounds of Agastache rugosa

Effects of Soil Type on Trace Element Absorption and Fruit Quality of Pepper

Effects of Short-Term Root Cooling before Harvest on Yield and Food Quality of Chinese Broccoli (Brassica oleracea var. Alboglabra Bailey)

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