Understanding the response of a crop to drought is first step in breeding tolerant genotypes. In our study, two maize (Zea mays L.) genotypes with contrasting sensitivity dehydration were subjected moderate conditions. The subsequent analysis their physiological parameters revealed decreased stomatal conductance accompanied by slighter decrease relative water content sensitive genotype. contrast, genotype maintained open stomata and active photosynthesis, even under Drought-induced changes...

In this investigation, the effect of salt stress on Portulaca oleracea L. was monitored at salinity levels 100 and 300 mM NaCl. At a concentration NaCl there decrease in stomatal conductance (gs) simultaneously with an increase CO2 assimilation (A) beginning exposure (day 3). However, leaf water potential (ψw), substomatal (Ci), maximum quantum yield photosystem II (Fv/Fm), proline malondialdehyde (MDA) content remained unchanged. Exposure to caused gs from day 3 potential, assimilation,...

This study monitors the effect of salt stress induced by a NaCl solution (0 - deionized water, 50, 100, 200, 300 mmol/L) in lettuce (Lactuca sativa L. cv. Orion), New Zealand spinach (Tetragonia tetragonoides (Pall) Kuntze) and common purslane (Portulaca oleracea Green Purslane) over course 50 days. The diverse reactions these monitored species to are well apparent from results. Lettuce proved as most sensitive stress, showing significant reduction dry weight, where even lower concentrations...

Salinity is a significant environmental factor affecting physiological processes in plants.This study monitors the effect of salt stress induced by NaCl solution (0 -deionized water; 50, 100, 200, 300 mmol/L) rocket (Eruca sativa (L.) Mill.) cv.Astro over course 50 days.Salt significantly affected monitored parameters.The osmotic potential decreased with increasing concentrations, while relative water content decrease did not take place until 200 mmol/L NaCl.Compared to control group,...

Arsenic is a ubiquitous toxic element that can be accumulated into plant parts. The present study investigated the response of Pteris cretica and Spinacia oleracea to As treatment through analysis selected physiological metabolic parameters. Plants were grown in pots As(V) spiked soil (20 100 mg/kg). Plants' condition was estimated determination elements, gas-exchange parameters, chlorophyll fluorescence, water potential, photosynthetic pigments, free amino acid content. results confirmed...

The effects of drought and heat stress on physiology two common cotton species, Gossypium hirsutum L. (Upland) G. barbadense (Pima) were investigated in this study. Four consecutive 28-day pot experiments carried out a fully controlled growth chamber under four temperatures (25, 30, 35 40°C), while water treatments (well-watered drought) imposed for 10 days to both species. Growth according dry matter accumulation was more limited by sole conditions (50%), whereas remarkable (64%)....

Abstract Background Arsenic toxicity induces a range of metabolic responses in plants, including DNA methylation. The focus this paper was on the relationship between As-induced stress and plant senescence hyperaccumulator Pteris cretica var. Albo-lineata ( Pc -Al). We assume difference physiological parameters level methylation young old fronds as symptoms As toxicity. Results accumulation -Al fronds, grown pots haplic chernozem contaminated with 100 mg kg − 1 for 122 days, decreased age....

The response of selected photosynthetic and morphological parameters plants to drought was examined in 5 inbred lines maize (Zea mays L.) their 10 F1 hybrids. aim the study establish whether performance parental genotypes under conditions correlates with progeny net rate, chlorophyll fluorescence or content pigments could be used as reliable physiological markers for early breeding generations. relative importance additive nonadditive (dominance, maternal) genetic effects inheritance these...

Walnut, pistachio, and peanut nutshells were treated by pyrolysis to biochar analyzed for their possible usage as fuels or soil fertilizers. All the samples pyrolyzed five different temperatures, i.e., 250 °C, 300 350 450 550 °C. Proximate elemental analyses carried out all samples, well calorific value stoichiometric analysis. For sample a amendment, phytotoxicity testing was performed content of phenolics, flavonoids, tannin, juglone, antioxidant activity determined. To characterize...

The use of saline water for the irrigation forage crops to alleviate scarcity has become necessary in semi-arid and arid regions researchers have been seeking ways offset harmful results soil salinity. Soil amendments with compost, manure other organic material provide a valuable source plant nutrients appear speed up recovery. aim this study was compare benefits farmyard municipal solid waste (MSW) compost (40 mg ha−1) raising alfalfa (Medicago sativa, cv. Gabès) under salt-water...

The paper evaluates the impact of car transport on distribution and accumulation Zn, Cu, Pb Cd in soils, as well vegetation near a newly built R4 motorway Košice-Milhosť (Slovakia). Samples were taken from surface humus layer (litter) 0−5, 10−20 20−30 cm mineral layers Cambisol Luvisol, assimilatory organs Fraxinus excelsior, Quercus cerris, rubra, Negundo aceroides Anthriscus sylvestris growing segments geobiocoenosis Querci-Fageta Typica. concentrations total Zn Cu determined using SensAA...

A comparative analysis of various parameters that characterize plant morphology, growth, water status, photosynthesis, cell damage, and antioxidative osmoprotective systems together with an iTRAQ the leaf proteome was performed in two inbred lines maize (Zea mays L.) differing drought susceptibility their reciprocal F1 hybrids. The aim this study to dissect parent-hybrid relationships better understand mechanisms heterotic effect its potential association stress response. results clearly...

Many contaminated soils contain several toxic elements (TEs) in elevated contents, and plant–TE interactions can differ from single TE contamination. Therefore, this study investigated the impact of combined contamination (As, Cd, Pb, Zn) on physiological metabolic processes lettuce. After 45 days exposure, excess soil resulted inhibition root leaf biomass by 40 48%, respectively. Oxidative stress accumulation was indicated markers—malondialdehyde 5-methylcytosine—and visible symptoms...

Currently, little is known about the spatial variability of significant soil properties and their relationships to forest ecosystems different vegetation grades. This work evaluates upper layer Cambisol taxa relationship altitude 2nd 5th grades selected in Western Carpathians using PCA regression analysis. The content clay, total carbon nitrogen, humus, energy, ash soils varied between 5.43 11.53 %, 21-65 mg g

Effect of drought and waterlogging on hydrophilic antioxidants their activity in potato tubers | Matyáš Orsák, Zora Kotíková, František Hnilička, Jaromír Lachman, Radovan Stanovič Agricultural Journals

Given the close relationship between cytokinins (CKs), photosynthesis and nitrogen metabolism, this study assessed effect of arsenic (As) contamination on these metabolic components in As-hyperaccumulators Pteris cretica L. var. Albo-lineata (Pc-A) Parkerii (Pc-P) as well As-non-hyperaccumulator straminea Mett. ex Baker (Ps). The ferns were cultivated a pot experiment for 23 weeks soil spiked with As at levels 20 100 mg·kg-1. For purpose study, CKs placed into five functionally different...

Abstract In this study, we observed the effect of application soil dust enriched with risk elements (Cd, Pb, As and Zn) to leaf surfaces lettuce ( Lactuca sativa var. capitata ) while it was grown under hydroponic conditions. This study aimed determine how low particulate matter (PM) doses affected activity or damaged photosynthetic apparatus uptake associated both epigenetic changes (5-methylcytosine content, i.e., 5mC) stress metabolism. During obtained many results pertaining element...

In potato tubers of four cultivars, the impact drought and waterlogging stress on total carotenoid content (TCC) individual carotenoids profile variance carotenoids, chlorophylls (a, b, a + b) in leaves during period 71 days two-year pot greenhouse experiments were investigated. The different response between cultivars was observed after exposure to (an increase TCC Marabel Laura cultivars) (in Milva cultivars). On average, all both stresses caused with higher stress. tubers, eight...