Response of Tomato Quality Parameters to Water Deficit Under Soil Salinity and Simulation Based on Stem Water Potential

Horticulturae, Journal Year: 2025, Volume and Issue: 11(2), P. 114 - 114

Published: Jan. 22, 2025

Soil salinity and water deficit are important challenges for sustainable agricultural development in arid semi-arid regions. While soil deficits may result lower crop yields, they improve quality. The quantitative relationship between water–salt stress, yield, quality is key to achieving stable yield enhanced through the coordinated regulation of salt. interaction irrigation on tomato needs be further understood, model simulating response under simulated optimized. In this study, a two-year experiment was conducted northwest China consisting combinations three levels (0 g, 3 5 g mixed salt added 1000 air-dried soil, respectively) four regimes relative field capacity (θf) (W0, W1, W2, W3 refer 95% θf, 80% 70% 60% θf as upper limit content, respectively). responses plant stem potential (φ), fruit osmotic (φπ), Na+ fresh weight, total soluble solids (TSS), lycopene (Ly), sugars content (SSC), color index (CI) degree stage were analyzed salinity. results show that both significantly reduced φ, but there no significant interaction. TSS, SSC, CI all affected by salinity, deficit, Fruit Ly, strongly correlated with straight lines regression each φ content. increased fruit, effect fruit. A functional simulate developed based parameters accumulation compound deficit. validation function effectively simulates combined effects providing theoretical basis management

Language: Английский

---

Geographic heterogeneity of activation functions in urban real-time flood forecasting: Based on seasonal trend decomposition using Loess-Temporal Convolutional Network-Gated Recurrent Unit model

Journal of Hydrology, Journal Year: 2024, Volume and Issue: 636, P. 131279 - 131279

Published: May 7, 2024

Language: Английский

---

Silicon application mitigated the adverse effects of salt stress and deficit irrigation on drip-irrigated greenhouse tomato

Agricultural Water Management, Journal Year: 2023, Volume and Issue: 289, P. 108526 - 108526

Published: Sept. 22, 2023

Tomato (Solanum lycopersicum L.) is an important vegetable crop around the world, and water scarcity soil salinization are two major unfavorable factors limiting fruit yield quality of greenhouse tomato in arid semi-arid regions. The application exogenous silicon has been reported to enhance under salt or drought stress, but its effect combined salt-drought stress remains unclear. A two-season (autumn 2021 spring 2022) experiment was conducted with three irrigation levels (I1, 90%−100% θf, where θf field capacity; I2, 70%−80% θf; I3, 50%−60% θf), salinity (S0, 0.1%, g/g; S1, 0.4%, g/g) rates (T0, 0 mM; T1, 2.4 mM) explore their effects on leaf content, photosynthetic parameters, yield, nutrient productivity (WP), nitrogen uptake utilization, (NWP) economic benefit drip-irrigated tomato. results showed that deficit exerted significant inhibiting water-nitrogen productivity, inhibition alleviated by application, which increased content 67.0%, net rate (Pn) 25.3%, 12.3%, WP 11.9%, 10.0% (titratable acids) - 27.4% (soluble sugars) NWP 9.2% 26.1% average. average over growing seasons 66.01, 54.29 44.31 t ha−1 I1, I2 71.9%, 65.2% 63.0%, Pn 11.1%, 12.9% 7.6%, 12.8%, 16.2%, 8.1% at levels, respectively. Plant (NU) partial factor (NPFP) use efficiency (NUE) tended decrease increasing level, while improved NUE 3.9% 2.2% NPFP 13.8% 11.7% seasons, Silicon significantly profit 24.3% 17.7% autumn 2022, According principal component analysis, I1T1S0 ranked first both seasons. correlation matrix positively correlated Pn, stomatal conductance, WP, NU, NUE, NPFP, profit, it had negative NWP. In conclusion, can improve enhancing capability drought-stressed salt-affected conditions.

Language: Английский

---

The role of hydraulic lift in tomato yield and fruit quality under different water and salt stresses

Agricultural Water Management, Journal Year: 2024, Volume and Issue: 299, P. 108899 - 108899

Published: May 30, 2024

In an arid region, water shortage limits agricultural development, and worse, soil salinization is accompanied by moisture drought. this hydraulic lift occurs due to the drying upper layer caused high precipitation wet lower layer. Hydraulic defined as redistribution from wetter, deeper layers drier, shallower near surface through plant roots. To examine effects of salt stresses on tomato yield fruit quality under condition lift, a 2year experiment was conducted. Different treatments were designed, including three levels (W1, W2 W3 indicating contents 60%–70%, 50%–60% 40%–50% field capacity, respectively) four (S0, S1, S2 S3 NaCl addition 0%, 0.2%, 0.4% 0.6% dry weight, pot, control treatment (CK) W1 S0, respectively. The other significantly decreased 4.59%–58.39% 5.12%–62.96% in 2018 2019, respectively, compared with that CK, W1S1 had no significance CK 2018. firmest observed W3S1 treatment, percentage increases 28.67% 28.89% both years CK. Water, stress their interactions significant taste vitamin C. Tomato C treatments. years, total magnitudes during entire growth period higher W1S2 (65.20% 76.06%, than Whereas correlated single volume, shape index qualities, correlations between yield. Mild waterdeficit could improve negligible loss, positive quality. Principal component analysis revealed combination S1 increased acceptable decline. These results are important for production saline-alkali region where positively corelated famers may consider trait resist drought salinization. Future studies focusing internal mechanisms changes sap flow warranted.

Language: Английский

---

Effects of saline-fresh water rotation irrigation on photosynthetic characteristics and leaf ultrastructure of tomato plants in a greenhouse

Agricultural Water Management, Journal Year: 2024, Volume and Issue: 292, P. 108671 - 108671

Published: Jan. 12, 2024

To reveal the mechanisms of saline-fresh water rotation irrigation that affect leaf ultrastructure and photosynthetic characteristics tomato plants to optimize strategy saline greenhouse tomatoes, a two-season experiment with four treatments was conducted in southern Xinjiang. The consisted times (W1), two fresh (W2), water, (W3), freshwater as control (CK). three patterns had same amount but rotational interval different. results indicated saline-alkali stress introduced by significantly reduced gas exchange parameters leaves use efficiency at scale, both stomatal non-stomatal factors played key role limiting exchange. chloroplast granular lamellae structure disrupted treated W1 W2. Compared CK, W2 decreased chlorophyll content 4.59% 10.89%, net rate 26.82% 40.11%, yield 60.62% 67.63%, respectively. In contrast, W3 presented relatively intact mesophyll cell high efficiency. treatment, no significant differences were found number fruits per plant (only increased 8.16% 4.03%), while better quality compared CK. suggested growth neither poor nor detrimental when rotated during flowering fruiting stage-fruit expansion stage other stages. can be used pattern for production greenhouses arid areas.

Language: Английский

---

Effects of Mineralization Degree of Irrigation Water on Yield, Fruit Quality, and Soil Microbial and Enzyme Activities of Cucumbers in Greenhouse Drip Irrigation

Horticulturae, Journal Year: 2024, Volume and Issue: 10(2), P. 113 - 113

Published: Jan. 24, 2024

Water shortages and soil salinization are the bottlenecks of sustainable agricultural development in many arid semi-arid regions world. Brackish water as a supplementary source for irrigation is an important way to solve shortage resources regions. To study effect mineralization degree (MIW) on yield quality greenhouse fruit cucumber arid, semi-arid, cold regions, effects MIW photosynthesis, yield, cucumber, well microorganisms enzyme activity, were evaluated based observed data from spring–summer (S−S) autumn–winter (A−W). In this study, cucumbers Ningxia sunlight greenhouses studied comparative experimental design with four levels (CK, 2.8–3.0 g L−1; S1, 1.9–2.3 S2, 1.2–1.4 S3, 0.3–0.5 L−1) where CK was used control treatment. The main indicators increased 0.3 L−1 3.0 L−1. Compared CK, leaf area index (LAI) net photosynthetic rate (A) S3 S−S (A−W) by 17.92% (26.32%) 112.89% (17.68%), respectively. Vitamin C, soluble protein, nitrate contents 118.75% (24.92%), 41.67% (28.89%), 43.09% (41.90%), respiration (SRR) 46.51% (90.48%). use efficiency (WUE) 35.98% (27.94%) 12.95% (10.64%), A model EC developed applicability verified, relative errors ranging 2.7% 7.8% (less than 10%). Within range, lower MIW, which facilitated increase microbial load rate, promoted growth, A, DMA, but not conducive sugar accumulation; higher more improving quality. comprehensive assessment determined that better (S3). results provide feasible improve crops irrigated brackish

Language: Английский

---

Effect of consumptive use of saline and fresh water on yield, chlorophyll content and fruit quality of tomato (Solanum lycopersicum) in Namib Desert coastal aeolian soil

Discover Agriculture, Journal Year: 2025, Volume and Issue: 3(1)

Published: March 20, 2025

Language: Английский

---

Reducing water footprints: shaping transition to a net zero future agriculture

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 327 - 345

Published: Jan. 1, 2025

Language: Английский

---

Effects of Drought Hardening and Saline Water Irrigation on the Growth, Yield, and Quality of Tomato

Agronomy, Journal Year: 2023, Volume and Issue: 13(9), P. 2351 - 2351

Published: Sept. 10, 2023

Drought hardening could promote the development of plant roots, potentially improving resistance crops to other adversities. To investigate response and physiological growth characteristics induced by drought salt stress in later stages, a greenhouse experiment was carried out from 2021 2022 with one blank control treatment twelve treatments that comprised combinations four irrigation regimes (W1 = 85%, W2 70%, W3 55%, W4 40% field capacity) three water salinity levels (S2, S4, S6, referring 2 g, 4 6 g sodium chloride added 1000 mL tap water, respectively). The results show saline introduced large amount into soil, resulting deterioration tomato growth, physiology, yield, use efficiency (WUE), but had positive, significant effect on fruit quality. When L−1, reduce soil accumulation, even at end maturation stage; consequently, enhancing increments height leaf area index during whole growing stage. activity plants under showed promoting effect. Correspondingly, maximum values quality irrigated same were all obtained or treatment. However, yield WUE lower than treatment, which highest among treatments, consistent reflection changing trend ratio fresh weight dry weight. Overall, can be considered an economically viable approach mitigate hazards irrigation, W2S2 combination is recommended for production due higher treatments.

Language: Английский

---

Optimization algorithm for determining working water head of subsurface irrigation with ceramic emitters based on soil wetting patterns

Computers and Electronics in Agriculture, Journal Year: 2023, Volume and Issue: 212, P. 108069 - 108069

Published: July 17, 2023

Language: Английский

---