Algal Research, Journal Year: 2024, Volume and Issue: 82, P. 103686 - 103686
Published: Aug. 1, 2024
Language: Английский
Horticulturae, Journal Year: 2021, Volume and Issue: 7(8), P. 238 - 238
Published: Aug. 10, 2021
This study monitored changes in chlorophyll fluorescence (CF), growth parameters, soil moisture content, phytochemical content (proline, ascorbic acid, chlorophyll, total phenol (TPC), and flavonoid (TFC)), antioxidant activities 12-day-old lettuce (Lactuca sativa L.) seedlings grown under drought stress (no irrigation) control (well irrigated) treatments controlled conditions for eight days. Measurements occurred at two-day intervals. Among ten CF parameters studied, effective quantum yield of photochemical energy conversion PSII (Y(PSII)), coefficient quenching (qP), variable based on the lake model (qL) significantly decreased drought-stressed from day 6 treatment compared to control. In contrast, maximum (Fv/Fm), ratio (Rfd), non-regulated dissipation (Y(NO)) were affected only end. All Proline started increasing 4 showed ~660-fold elevation 8 Chlorophyll, TPC, TFC, seedlings. Results major all prolonged stress. These findings clarify effects during progressive exposure will be useful seedling industry.
Language: Английский
Citations
111
Plants, Journal Year: 2023, Volume and Issue: 12(5), P. 1115 - 1115
Published: March 1, 2023
Salt stress negatively affects the growth, development, and yield of horticultural crops. Nitric oxide (NO) is considered a signaling molecule that plays key role in plant defense system under salt stress. This study investigated impact exogenous application 0.2 mM sodium nitroprusside (SNP, an NO donor) on tolerance physiological morphological characteristics lettuce (Lactuca sativa L.) (25, 50, 75, 100 mM). caused marked decrease yield, carotenoids photosynthetic pigments stressed plants as compared to control ones. Results showed significantly affected oxidative compounds (superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) ascorbate (APX)) non-oxidative (ascorbic acid, total phenols, malondialdehyde (MDA), proline, H2O2) lettuce. Moreover, decreased nitrogen (N), phosphorous (P), potassium ions (K+) while increasing Na (Na+) leaves The increased ascorbic antioxidant enzymes (SOD, POD, CAT, APX) MDA content In addition, H2O2 leaf N control, P root K+ all treatments decreasing Na+ salt-stressed plants. These results provide evidence helps mitigate effects.
Language: Английский
Citations
64
Deleted Journal, Journal Year: 2025, Volume and Issue: 77(1)
Published: Jan. 7, 2025
Globally, salinity has a devastating effect on plant yield and quality. The breeding of salt-tolerant varieties/rootstocks is crucial to reducing these effects. This study involved 35 hybrid rootstock candidates, their female male parent lines, 9 genotypes (Lagenaria siceraria). In hydroponic conditions, candidates were evaluated for the biomass, physicochemical parameters in leaf root tissues under control [1.8 dS m−1] saline [10 conditions. Salt stress reduced shoot dry weight by 63%, 43%, main stem diameter 18%, number leaves per 41%, length 68%, 45%. Under salt stress, highest amount photosynthetic measured 39-01 × 56-01 (16.17 µmol CO2/cm2/s) 42-11 47-02 (16.47 CO2/cm2/s), respectively. decreased tissue IAA (3%), ABA (63%), (28%), GA3 (32%), SA (63%) content, but increased (196%), (27%) (47%) content. K/Na Ca/Na ratios 100 97%, respectively, stress. increase conditions positively affected biomass photosynthesis parameters. this study, 15 Lagenaria performed better than watermelon other hybrids plants. It been concluded that selected as tolerant can be used rootstocks regions experiencing determining rootstock/scion interactions terms quality future studies.
Language: Английский
Citations
2
Bulletin of the National Research Centre/Bulletin of the National Research Center, Journal Year: 2021, Volume and Issue: 45(1)
Published: June 23, 2021
Abstract Background Salinity is one of the major limiting abiotic stresses that decrease crop production worldwide. To recommend genotypes for cultivation under saline stress conditions, a comprehensive understanding genetic basis and plant responses to this needed. In present study, total 20 barley were investigated identify potential salt-tolerant genotypes, both at early growth stage using hydroponic system, in adult plants field conditions. For these purposes, multi-trait genotype-ideotype distance index (MGIDI) was used seedling stage, weighted average absolute scores (WAASB) high-yielding stable stage. At seedlings treated with two salinity levels: 0 mM NaCl (as control conditions) 200 30 days, during period different physiological traits measured. Besides, yield performance stability evaluated across five environments 2018–2020 cropping seasons. Results significantly decreased all plants; however, some showed minimal reduction measured traits. Multivariate analysis grouped into clusters. G12, G14, G6, G7, G16 selected as most MGIDI index. multi-environment trials experiment, AMMI grain yields tested influenced by environment (E), genotype (G), GE interaction. Based on other statistics, G8, superior genotypes. Conclusion Together WAASB indices revealed three genotypes—G7, G14 G16—can be recommended new resources improving stabilizing programs moderate climate regions Iran. Our results suggest can accelerate screening nurseries breeding programs. useful measurement trials.
Language: Английский
Citations
75
Agronomy, Journal Year: 2022, Volume and Issue: 12(2), P. 244 - 244
Published: Jan. 19, 2022
In recent decades, increasing human pressure has caused the gradual deterioration of physical and chemical properties water soil. Salinity is an important factor influencing quality water. The aim this comprehensive research was to determine effect concentrations sodium chloride, which a salinity inducer, on yield, photosynthesis efficiency (expressed with chlorophyll fluorescence measurement) content selected nutrients in leaves hydroponically grown lettuce (Lactuca sativa L.). Experiments were conducted at following NaCl: 0 (control treatment), 10, 20, 40, 60 mmol L−1. Studies two independent seasons: spring autumn. plants exposed NaCl stress modified their composition by lowering uptake (for L−1 relation control): N (−11%), K (−35.7%), Mg (−24.5%), while (+2400%). Na:K ratio significantly narrowed (from 76:1 2.6:1). increase Cl level may also have decrease nitrates. As result disturbed ionic balance, RWC reduced (−6.2%). these changes, yield biomass aerial parts decreased (more than two-fold for highest concentration control) whereas dry matter increased (+32%). measurement showed significant changes PSII level. energy flow rate (F0, FM, FV, FV/FM) as well specific flows through reaction centre (ABS/RC, TR0/RC, ET0/RC, DI0/RC). functioning index, calculated basis absorption (PIAbs), changed. induced worsened physiological reactions PSII, changed resulted lower plants. Due problems, it will be necessary use, agriculture much larger scale before, saline treatment systems (e.g., highly effective nanofiltration and/or reverse osmosis).
Language: Английский
Citations
51
Plants, Journal Year: 2022, Volume and Issue: 11(6), P. 800 - 800
Published: March 17, 2022
Salt stress is considered as one of the most common abiotic stresses reducing productivity and fruit quality crop plants. The present study was carried out to assess salt tolerance among 15 local squash (Cucurbita maxima Duchesne) landraces. Different (NaCl) concentrations 0, 100, 200 300 mM were selected in order evaluate response germplasm based on 12 agronomic parameters 3 biochemical traits, proline, malondialdehyde (MDA) chlorophylls. A varied effect level observed studied landraces germination potential, well growth at seedling stage. Results showed that all drastically affected high with a significant variation their response, indicating existence considerable genetic variability. Landraces "746" "747" best performing cultivars across levels, whereas "1007", "1008" "1009" negatively affected. Based tested landrace performance, four landraceswere further evaluated level, focusing determination compounds play key role ability withstand stress. mean MDA content generally increased stressed plants, compared control treatment; increase attributed peak specific levels. In particular, "1007" maximum 100 NaCl, while "751", reached its NaCl. addition, involved an free proline content, exception "746", being either ("748" "751" landraces) or where only expressed highest content. These findings can be extrapolated into efforts develop more salt-tolerant exhaust possibilities using saline water soils under changing climate conditions.
Language: Английский
Citations
45
Agronomy, Journal Year: 2023, Volume and Issue: 13(3), P. 771 - 771
Published: March 7, 2023
Salinity is one of the most devastating environmental factors limiting crop productivity worldwide. Therefore, our study investigates effect seed priming with zinc oxide nanoparticles (ZnO NPs: 0, 50, and 100 mg L−1), 24-epibrassinolide (EBL: 0.0, 0.2, 0.4 µM), their combined treatments on maize (Zea mays L.) grown different levels saline stress (i.e., control, 5, 10 dS m−1) under semi-controlled conditions. Higher (10 negatively influenced growth traits, physiological attributes, elemental Zn K) uptake for both roots shoots maize, whereas it increased Na+ accumulation Na+/K+ ratio in comparison to other treatments. However, ZnO NPs EBL as well combinations showed amelioration detrimental effects biochemical performance maize. In general, were significantly more effective than either or individual A combination L−1 NPS + 0.2 µM resulted highest values root length, surface area, stem diameter, relative leaf water contents, total chlorophyll, net rate photosynthesis, accumulation, K+ uptake, while lowest ratio, especially saline-stress treatment. Thus, we concluded that can effectively mitigate saline-stress-mediated decline morphological, physiological, traits
Language: Английский
Citations
35
Agronomy, Journal Year: 2023, Volume and Issue: 13(10), P. 2645 - 2645
Published: Oct. 19, 2023
Salinity is one of the most threatening abiotic stresses to agricultural production, alarmingly expanding both through natural salinization phenomena and anthropogenic activities in recent times. The exploration sustainable eco-friendly strategic approaches for mitigating negative impact salinity on food crops vital importance future security. Therefore, our study aimed evaluate zinc oxide nanoparticles (ZnO-NPs) as potent mitigators maize (Zea mays L.). Three ZnO-NPs foliar treatments (i.e., 0, 50, 100 mg/L) were applied 40, 55, 70 days after sowing plants exposed continuous salinities 0 mM NaCl (S0), 60 (S1), 120 (S3) a semi-automated greenhouse facility. Results showed that highest NaCl) significantly affected plant growth attributes, physiological performance, nutrient profiles, antioxidant activity, yield, yield-contributing characteristics plants. Thus, resulted −53% number grains per cob (NG), −67% weight (GW), −36% 100-grains (HGW), −72% grain yield (GY) compared controls. However, treatment with successfully mitigated improved all studied parameters, except transpiration rate (TR) intrinsic water use efficiency (iWUE). Foliar application mg/L alleviated NG, GW, HGW, GY by 31%, 51%, 13%, 53%, respectively. Furthermore, principal component analysis (PCA) Pearson’s correlation further strengthened significance ZnO-NP mitigators.
Language: Английский
Citations
31
Scientia Horticulturae, Journal Year: 2023, Volume and Issue: 312, P. 111883 - 111883
Published: Jan. 30, 2023
Language: Английский
Citations
28
Critical Reviews in Plant Sciences, Journal Year: 2024, Volume and Issue: 43(5), P. 327 - 347
Published: May 20, 2024
Salinity, a significant abiotic stressor, imperils vegetable growth, yield, and quality. Moreover, elevated salinity levels, driven by climate change, jeopardize nutritional In particular, protected cultivation systems, responsible for 60% of the global industry's economic value, encounter notable challenges in managing due to water runoff drainage mechanism limitations. Therefore, it is crucial understand intricate mechanisms that control use this knowledge improve plant tolerance these conditions. study, we explore strategies effectively mitigate detrimental impacts on crops cultivated within environments. Additionally, investigate benefits controlled moderate adjustments enhance their content. Moderate or nutrient solution increases typically raise total soluble solids, sugar, vitamin C, phenols, lycopene, antioxidants most fruit vegetables. Though generally applicable leafy vegetables, exceptions like lettuce wild rocket may show inconsistencies, potentially reducing some quality traits. Interdisciplinary approaches are essential developing sustainable solutions thereby ensuring resilience production face changing environmental Given impracticality desalinating all areas, future research should also synergies between stress, cultivars used, factors from physiological molecular perspectives
Language: Английский
Citations
16