Silicon-mediated modulation of maize growth, metabolic responses, and antioxidant mechanisms under saline conditions

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: Jan. 2, 2025

This study explored how exogenous silicon (Si) affects growth and salt resistance in maize. The maize was cultivated sand-filled pots, incorporating varied stress (NaCl) treatments. Silicon applied at 0, 2, 4, 6, 8 mM, induced using 60 and120 mM concentrations. Soil salinity triggers a range of physiochemical abnormalities, often leading to arrest and, eventually, the demise susceptible plants. significantly reduced total chlorophyll content (12.58–33.14%), antioxidant enzymes, notably SOD (32–46%), POD (10.33–18.48%), CAT (10.05–13.19%). In contrast, increased secondary metabolites, including phenols (49.11–66.35%.), flavonoids (220.99–280.36%), anthocyanin (50.04–58.6%). Adding under absorption Na+ by 6.69%, 20.7%, 41.12%, 34.28%, respectively, compared their respective controls. Additionally, applying Si enhanced enzymes such as (50.57%), (15.58%), (10.06%) ratio (21.32%). application positively impacted nearly all physiological features, indicating it helps mitigate against salinity. achieved regulating various indicators, where anthocyanin, ascorbic acid, phenols, flavonoids, increased.

Language: Английский

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Empirical estimation of saturated soil-paste electrical conductivity in the EU using pedotransfer functions and Quantile Regression Forests: A mapping approach based on LUCAS topsoil data

Geoderma, Journal Year: 2025, Volume and Issue: 454, P. 117199 - 117199

Published: Feb. 1, 2025

Language: Английский

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Collected knowledge on the impacts of agricultural soil management practices in Europe

European Journal of Soil Science, Journal Year: 2024, Volume and Issue: 75(2)

Published: March 1, 2024

Abstract Soil plays a central role in most aspects of human societies, and there is large body literature about sustainable soil management. Nevertheless, currently facing degradation arising from different threats, which undermines development globally. In order to design effective research policy strategies, it necessary identify the current knowledge level This study summarises key findings systematic stocktake available agricultural management practices 23 European countries, included identification use, associated impacts challenges addressed. The aim was understand state practices, investigated and/or implemented across Europe. results were analysed at also grouped into Regions Environmental Zones. Key this gaps that are climate mitigation adaptation. There gap avoid greenhouse gas emissions soils, as few reported studies evidence complexity processes governing these emissions. Further needed on impact tillage long‐term carbon storage distribution along profile, not consensual deeper layers.

Language: Английский

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Groundwater quality deterioration evaluation for irrigation using several indices and geographic information systems: A case study

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 320, P. 100645 - 100645

Published: Aug. 3, 2024

Groundwater in the Al-Burayhi and Hethran Basin, Taiz, Yemen, it is important source of irrigation water. However, its quality faces threats from both natural human activities. This study aims to assess potential deterioration groundwater for purposes using several indices Geographic Information System (GIS) software. Indices, including salinity (electrical conductivity), sodium hazard (Sodium Adsorption Ratio Permeability Index), combined index conductivity percentage), magnesium index, chloride content index. The results indicate that 24.14 % samples showed high salinity, while 75.86 very according electrical indices. For hazards, 79.3 posed a medium soil permeability long term based on Index. Regarding hazard, 69 were poor irrigation. 55.17 Concerning content, 72.41 exceeded permissible limits Yemeni international standards (350 mg/L). Therefore, area impedes crop growth productivity, leads salinization and/or physical degradation due increased alkalinity, necessitates costly treatments restore productivity. Nevertheless, can be conditionally used by considering all factors affecting use low-quality

Language: Английский

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Integrated Drip Irrigation Regulates Soil Water–Salt Movement to Improve Water Use Efficiency and Maize Yield in Saline–Alkali Soil

Water, Journal Year: 2024, Volume and Issue: 16(17), P. 2509 - 2509

Published: Sept. 4, 2024

Soil salinization is a critical issue impacting agriculture, particularly in arid and semi-arid regions. The objective of this study was to evaluate the effects different drip irrigation fertilization treatments on soil water salt dynamics, maize use efficiency, crop yield saline–alkali soils northern Ningxia, China. Over three years, four were tested: CK (flood irrigation, 810 mm), W1 (low-volume 360 W2 (medium-volume 450 W3 (high-volume 540 mm). results demonstrate that significantly increased moisture content at depths 0–20 cm 60–100 compared CK, facilitating uniform leaching 0–40 layer. However, 40–100 layer, decreased porosity upward movement hindered migration, resulting subsurface accumulation. Furthermore, combined with reduced phosphorus fixation nitrogen leaching, enhancing nutrient availability. This led reduction underground leakage surface evaporation by up 39.63%, while efficiency improved 18.97% 55.13%. By third year, grain yields under showing highest gains (up 21.90%). highlights potential integrating as an effective strategy for managing soils, improving use, increasing productivity, providing valuable insights sustainable agricultural practices.

Language: Английский

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A comprehensive approach for evaluating salinity stress tolerance in brinjal (Solanum melongena L.) germplasm using membership function value

Physiologia Plantarum, Journal Year: 2024, Volume and Issue: 176(2)

Published: March 1, 2024

Salinity is a major stress factor affecting plant growth and development, which limits the productivity of vegetable crops. Brinjal (Solanum melongena L.), an important cultivated across globe susceptible to salinity stress. In present study, tolerance response 110 brinjal germplasm lines was evaluated at germination stage using membership function value (MFV). The MFV comprehensive index that integrates salt-tolerance indices parameters. germplasms were classified into highly salt-tolerant (>0.79), (0.79-0.65), moderately (0.64-0.21), salt-sensitive (0.20-0.07), (<0.07) based on their mean MFV. Among all traits examined, percentage (0.874) vigour index-I (0.808) most reliable for assessing tolerance, showing higher correlation with Furthermore, mathematical model developed evaluating germplasm. We validated our by seedling through hydroponic experiment, strong positive observed between parameters stages. Salt-tolerant genotypes showed chlorophyll content, photosynthetic performance biomass accumulation lower canopy temperature (1.57°C) under compared (2.62°C). These findings provide valuable insights germplasm, identified potential candidates elucidate molecular mechanisms develop salinity-tolerant cultivars. To knowledge, this first report evaluate any crop.

Language: Английский

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Synergistic effects of boron and saponin in mitigating salinity stress to enhance sweet potato growth

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: June 6, 2024

Abstract Salinity stress significantly hinders plant growth by disrupting osmotic balance and inhibiting nutrient uptake, leading to reduced biomass stunted development. Using saponin (SAP) boron (B) can effectively overcome this issue. Boron decreases salinity stabilizing cell walls membranes, regulating ion balance, activating antioxidant enzymes, enhancing water uptake. SAP are bioactive compounds that have the potential alleviate improving modulating hormone levels, promoting root growth, stimulating activity. That’s why current study was planned use a combination of as amendments mitigate in sweet potatoes. Four levels (0%, 0.1%, 0.15%, 0.20%) B (control, 5, 10, 20 mg/L B) were applied 4 replications following completely randomized design. Results illustrated 0.15% with caused significant enhancement potato vine length (13.12%), weight (12.86%), (8.31%), over control under stress. A improvement chlorophyll (9.84%), b (20.20%), total (13.94%), photosynthetic rate (17.69%), transpiration (16.03%), stomatal conductance (17.59%) contrast prove effectiveness + treatment. In conclusion, is recommended

Language: Английский

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Salt-Affected Soils

Springer eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 203 - 215

Published: Jan. 1, 2024

Language: Английский

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Exploring Salinity Tolerance Mechanisms in Diverse Wheat Genotypes Using Physiological, Anatomical, Agronomic and Gene Expression Analyses

Plants, Journal Year: 2023, Volume and Issue: 12(18), P. 3330 - 3330

Published: Sept. 20, 2023

Salinity is a widespread abiotic stress that devastatingly impacts wheat growth and restricts its productivity worldwide. The present study aimed at elucidating biochemical, physiological, anatomical, gene expression analysis, agronomic responses of three diverse genotypes to different salinity levels. A treatment 5000 7000 ppm gradually reduced photosynthetic pigments, anatomical root leaf measurements traits all evaluated (Ismailia line, Misr 1, 3). In addition, increasing levels substantially decreased except sclerenchyma tissue upper lower vascular bundle thickness compared with unstressed plants. However, proline content in stressed plants was stimulated by genotypes. Moreover, Na+ ions antioxidant enzyme activities leaves increased the high level demonstrated substantial variations studied characters. Ismailia line exhibited uppermost performance pigments under both Additionally, superior activity superoxide dismutase (SOD), catalase (CAT), peroxidase (POX), polyphenol oxidase (PPO) enzymes followed 1. recorded maximum stress, which enhanced tolerance stress. 3 presented up-regulation H+ATPase, NHX2 HAK, HKT genes positive molecular were reflected on values traits.

Language: Английский

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Soil salinization prediction through feature selection and machine learning at the irrigation district scale

Frontiers in Earth Science, Journal Year: 2025, Volume and Issue: 12

Published: Jan. 6, 2025

Introduction Soil salinization is a critical environmental issue affecting agricultural productivity worldwide, particularly in arid and semi-arid regions. This study focuses on the Xinjiang region of China, specifically Xiao Haizi Sha Jingzi irrigation areas, to explore use remote sensing technology for surface soil salinity estimation. Methods Exhaustive filter-based feature selection methods were employed by integrating data measured ground with 32 spectral features derived from Landsat 8 OLI images. A 5-fold cross-validation method was used identify combinations that resulted higher R 2 values. Moreover, inversion accuracy monitoring models built using different compared across five machine learning algorithms: Support Vector Machine (SVM), XGBoost, Decision Tree (DT), Random Forest (RF), AdaBoost. Results The results revealed that: (1) AdaBoost DT algorithms demonstrated high efficacy precision prediction salinity, outperforming other validation set ( value 0.892, MAE 1.558, RMSE 2.043), showing best performance training 0.917, 0.838, 1.182). (2) Feature combination 3, consisting Salinity Index 5, 1, 8, not only effectively extracted information but also significantly improved efficiency model estimations, reflecting actual situation area. Discussion research provides robust methodological support management.

Language: Английский

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