Effect of various salt–alkaline mixed stress conditions on sunflower seedlings and analysis of their stress factors

Shi, Decheng; Sheng, Yanmin

doi:10.1016/j.envexpbot.2004.05.003

Cited by 251 publications

(214 citation statements)

References 28 publications

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“…The alkaline salts could cause damage to plants through both salt and pH stress [32]. In addition, plants growing under alkaline conditions suffer from the unavailability of some micronutrients essential to plant growth [3].…”

Section: Discussionmentioning

confidence: 99%

Effect of salinity and sodicity stresses on physiological response and productivity inHelianthus annuus

Farghaly¹,

Radi²,

Abdel-Wahab³

et al. 2016

Acta Biologica Hungarica

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Soil salinity and sodicity (alkalinity) are serious land degradation issues worldwide that are predicted to increase in the future. The objective of the present study is to distinguish the effects of NaCl and Na 2 CO 3 salinity in two concentrations on the growth, lipoxygenase (LOX) activity, membrane integrity, total lipids, yield parameters and fatty acids (FAs) composition of seeds of sunflower cultivar Sakha 53. Plant growth, LOX activity and malondialdehyde (MDA) content were reduced by salts stresses. On the contrary, salinity and alkalinity stress induced stimulatory effects on membrane permeability, leakage of UV-metabolites from leaves and total lipids of sunflower shoots and roots. Crop yield (plant height, head diameter, seed index and number of seeds for each head) that is known as a hallmark of plant stress was decreased by increasing concentrations of NaCl and Na 2 CO 3 in the growth media. Fatty acid methyl esters (FAME) composition of salt-stressed sunflower seeds varied with different levels of NaCl and Na 2 CO 3 .

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Section: Discussionmentioning

confidence: 99%

Effect of salinity and sodicity stresses on physiological response and productivity inHelianthus annuus

Farghaly¹,

Radi²,

Abdel-Wahab³

et al. 2016

Acta Biologica Hungarica

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“…Based on the researches for sunflower growth characteristic in our study site [26], the threshold value of soil salt content for sunflower's root zone (0-40 cm depth) was around 0.3% (168 mg·cm -2 ). Therefore, first important constraint condition for optimal irrigation strategy is the root zone's salt content should be less than 168 mg·cm -2 .…”

Section: Optimal Irrigation Strategymentioning

confidence: 99%

Effects of Different Irrigation Strategies on Soil Water, Salt, and Nitrate Nitrogen Transport

Zeng

et al. 2015

Ecological Chemistry and Engineering S

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Abstract:Intermittent irrigation has attracted much attention as a water-saving technology in arid and semi-arid regions. For understanding the effect of intermittent irrigation on water and solute storage varied from irrigation amount per time (IRA), irrigation application frequency (IRAF), irrigation intervals (IRI) and even soil texture (ST), intermittent irrigation experiment was carried out in 33 micro-plots in Inner Mongolia, China. The experiment results were used for the calibration and validation of HYDRUS-1D software. Then 3 ST (silty clay loam, silty loam, and silty clay), 5 IRA (2, 4, 6, 8, and 10 cm), 4 IRAF (2, 3, 4, and 5 times) and 4 IRI (1, 2, 3, and 4 days) were combined and total 240 scenarios were simulated by HYDRUS-1D. Analysis of variance (ANVOA) of simulated results indicated that ST, IRA, and IRAF had significant effect on salt and nitrate nitrogen (NO3 --N) storage of 0-40 cm depth soil in intermittent irrigation while only ST affected soil water storage obviously. Furthermore, salt leaching percentage (SLP) and water use efficiency (WUE) of 0-40 cm depth were calculated and statistical prediction models for SLP were established based on the ANOVA using multiple regression analysis in each soil texture. Then constraint conditions of soil water storage (around field capacity), salt storage (smaller than 168 mg·cm -2 ), WUE (as large as possible) in 0-40 cm depth and total irrigation water amount (less than 25 cm) were proposed to find out the optimal intermittent irrigation strategies. Before sowing, the optimal irrigation strategy for silty clay loam soil was 6 cm IRA, 3 times IRAF, and 2 days IRI respectively. For silty loam and silty clay soils, IRA, IRAF, and IRI were 8 cm, 3 times, and 2 days respectively.

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“…To date, there are only a few reports about alkali stress, especially in trees. Based on previous studies, it is evident that the effects of alkali stress are more severe than those of salt stress (Hartung et al 2002, Shi and Sheng 2005, Yang et al 2007. As there are increasing areas of saline and alkaline soil in the world, it is necessary to do more research on salt-alkali stress and its effects on plants.…”

mentioning

confidence: 99%

“…In contrast, the tendency was different in the higher altitude population: the proline concentration did not significantly increase until pH value was higher than 9.8 (Table 1). Different tendencies indicate that the higher altitude population could endure higher alkalinity better than does the lower altitude population, as proline is generally assumed to serve as a physiologically compatible solute that accumulates as needed to maintain not only osmotic potential but also ion balance (Kurkdjian andGuern 1989, Shi andSheng 2005).…”

mentioning

confidence: 99%

Effect of increased alkalinity on Na<sup>+</sup> and K<sup>+</sup> contents, lipid peroxidation and antioxidative enzymes in two populations of Populus cathayana

Zhang

Xu³

et al. 2009

Biologia plant.

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We compared two populations of Populus cathayana Rehder, originating from altitudes 2 840 m and 1 450 m, to determine whether trees from different altitudes exhibit different tolerance to alkalinity. The tree cuttings were exposed to nutrient solutions with pH 7.9, 8.8, 9.8 and 10.4 and the salt concentration 200 mM. Na + and K + contents, and Na + /K + ratios in leaves and roots were greatly affected by pH values. At pH 10.4, the Na + /K + ratios in both leaves and roots sharply dropped in the higher altitude population but were maintained at higher levels in the lower altitude population. The patterns of pH-induced changes in contents of malondialdehyde and free proline, and antioxidative enzyme activities indicated that the higher altitude population exhibits greater tolerance to alkalinity stress than does the lower altitude population.Additional key words: free proline, malondialdehyde, poplar, salt-alkali mixed stress.

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Effect of various salt–alkaline mixed stress conditions on sunflower seedlings and analysis of their stress factors

Cited by 251 publications

References 28 publications

Effect of salinity and sodicity stresses on physiological response and productivity inHelianthus annuus

Effect of salinity and sodicity stresses on physiological response and productivity inHelianthus annuus

Effects of Different Irrigation Strategies on Soil Water, Salt, and Nitrate Nitrogen Transport

Effect of increased alkalinity on Na<sup>+</sup> and K<sup>+</sup> contents, lipid peroxidation and antioxidative enzymes in two populations of Populus cathayana

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