Impact of Limited Irrigation on Fruit Quality and Ethylene Biosynthesis in Tomato: A Comprehensive Analysis of Physical, Biochemical, and Metabolomic Traits

Plants, Journal Year: 2025, Volume and Issue: 14(3), P. 406 - 406

Published: Jan. 30, 2025

Water scarcity and climate change pose significant challenges to sustainable agriculture, emphasizing the need for optimized irrigation practices. This study evaluates impact of limited (0.45 L/day per plant) compared a control (0.87 on tomato fruit quality metabolic responses. Limited enhanced flavor by reducing pH from 4.2 3.4 improved cellular integrity, with electrolyte leakage decreasing 50% 26%. Antioxidant levels increased, vitamin C content rising 49 64 mg 100 g−1 FW, while glucose fructose accumulation contributed sweetness. Notably, suppressed ethylene biosynthesis, methionine, ACC, ACO activity, production, which are key regulators ripening senescence. suppression suggests potential extending shelf life delaying over-ripening. These findings underscore dual benefits irrigation: enhancing supporting water use. research provides viable strategy optimizing production postharvest in water-limited regions.

Language: Английский

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Effect of Organic and Synthetic Fertilizers on Nitrate, Nitrite, and Vitamin C Levels in Leafy Vegetables and Herbs

Plants, Journal Year: 2025, Volume and Issue: 14(6), P. 917 - 917

Published: March 14, 2025

This study investigated the accumulation of nitrate and nitrite, as well vitamin C content, in various leafy vegetables, including amaranth greens, katuk, morning glory, squash leaves, vine spinach, leaf lettuce, romaine Vietnamese basil, perilla, komatsuna, leeks, grown with either organic or synthetic fertilizers. The findings indicate that type fertilizer significantly influences content these vegetables. Organic fertilizers were found to reduce levels increase spinach compared results for However, high concentrations pose potential health risks. also identified elevated vegetables are not currently regulated. Furthermore, more than half samples contained which no maximum permissible level has been established. These underscore importance vegetable cultivation enhancing both human environmental sustainability.

Language: Английский

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Biostimulant modulate the physiological and biochemical activities, improving agronomic characteristics of bell pepper plants under salt stress

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Salinity is one of the most important environmental stresses affecting plant growth and metabolism, in irrigated areas arid semi-arid regions; use biostimulants seems to be an efficient alternative improve productivity plants under saline conditions. This study investigated effects salinity stress by applying different electrical conductivities (0.5, 1.5, 2.5, 3.5, 4.5 dS m^{− 1}) irrigation water combination with foliar application biostimulant (VIUSID Agro) (0, 0.3, 0.6 mL L^{− on growth, productivity, physiological, biochemical responses bell pepper plants, a greenhouse. Done factorial design completely randomized layout five replications parameters evaluated were: production components; gas exchange, chlorophyll fluorescence, index, relative content, electrolyte extravasation; organic antioxidant enzymes activity (catalase ascorbate peroxidase); malondialdehyde content. The results showed that caused significant reduction decreased levels, increased osmorregulators enzyme activity. Both doses effectively mitigated salt maintaining higher levels (15% increase), improving photosynthetic performance (20% fruit size quality, leaf status, ultimately leading improved crop performance. was effective strategy increase tolerance conditions can sustainable solution for agricultural water.}

Language: Английский

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Enhancing Salt Tolerance in Tomato Plants Through PEG6000 Seed Priming: Inducing Antioxidant Activity and Mitigating Oxidative Stress

Plants, Journal Year: 2025, Volume and Issue: 14(9), P. 1296 - 1296

Published: April 25, 2025

Salt stress is a major constraint to crop productivity, negatively affecting plant physiology and fruit quality. This study hypothesized that seed priming with polyethylene glycol (PEG6000) might enhance antioxidant activity by mitigating oxidative in Solanum lycopersicum ‘Micro-Tom’ under salt stress. Seeds primed –1.2 MPa PEG6000 were grown Rockwool treated 0, 50, 100, 150, 200 mM NaCl. Primed plants showed 32% increase leaf potassium (K+) 28% decrease sodium (Na+) accumulation compared non-primed 150 Glucose, fructose, sucrose contents increased 25%, 22%, 19%, respectively, fruits, while citric acid decreased 15%. Malondialdehyde (MDA) electrolyte leakage reduced 35% 29%, moderate salinity. Antioxidant enzyme activities—SOD, POD, CAT, APX enhanced 30–45% 100 NaCl, controls. Abscisic (ABA) levels 40% roots Activities of polyamine-related enzymes (DAO, PAO, ADC) also rose significantly. Priming improved protein content 20% relative water 18%. These results suggest enhances tolerance boosting defense, regulating osmotic balance, improving ion homeostasis, offering viable strategy for sustaining tomato productivity

Language: Английский

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Effects of Irrigation Interval and Irrigation Level on Growth, Photosynthesis, Fruit Yield, Quality, and Water-Nitrogen Use Efficiency of Drip-Fertigated Greenhouse Tomatoes (Solanum lycopersicum L.)

Agronomy, Journal Year: 2025, Volume and Issue: 15(5), P. 1068 - 1068

Published: April 28, 2025

The inefficient irrigation strategy is an important factor affecting the yield and water productivity of tomatoes in greenhouses, seriously hindering development cultivation industry. While impact level on tomato growth has been extensively studied, interval, another crucial component schedule, as well their interaction, remain poorly explored. There were four levels (W1: 125% ETc, W2: 100% W3: 75% W4: 50% ETc; ETc represented crop evapotranspiration) three intervals (D1: 4-day D2: 7-day D3: 10-day interval), aiming to explore effects different performance tomatoes. Here, we showed that moderate increases interval promoted root growth, improved nitrogen uptake distribution, enhanced plant height, stem diameter, leaf area index, aboveground biomass, thereby promoting net photosynthetic rate plants fruit yield. quality indicators total soluble solids, vitamin C, sugar decreased with increasing but increased decreasing interval. Higher consumption resulted lower water-nitrogen use efficiency. Overall, compared W2D2 W2D3, W2D1 by 8.0% 26.1%, respectively, 5.7% 19.3%, 7.1% 17.5%, respectively. In addition, organs then increase level, while it consistently At harvest period, followed order > stem. Taken together, (100% interval) recommended for this experiment, which can provide a theoretical basis technical support sustainable production greenhouse drip

Language: Английский

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Biostimulant modulate the physiological and biochemical activities, improving agronomic characteristics of bell pepper plants under salt stress

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 29, 2025

Language: Английский

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