Effect of selenium foliar spray on physiological and biochemical processes and chemical constituents of wheat under drought stress

Nawaz, Fahim; Ahmad, Rashid; Ashraf, Muhammad; Waraich, Ejaz Ahmad; Khan, Shahbaz

doi:10.1016/j.ecoenv.2014.12.003

Cited by 231 publications

(165 citation statements)

References 60 publications

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“…Our results correspond with the previous study (Zhang et al 2014) on rice plants, in which they will wee the influence of Se application on rice yield. Moreover, soil texture, its physicochemical characteristics, method and time of Se application also influence its relative effectiveness (Lyons et al 2005) in improving the yield of crops (Nawaz et al 2015). The present study indicated that Se accumulation in common buckwheat was closely associated with the application rate of Se.…”

Section: Resultsmentioning

confidence: 63%

“…However, studies concerned with Se effects on crop yield gave controversial results. Some studies reported little effect of Se on crop grain yield, such as wheat , maize (Chilimba et al 2012), and soybean (Yang et al 2003), while others reported that Se improved grain yield of maize (Wang et al 2012), wheat (Nawaz et al 2015), and rice (Zhang et al 2014). In this study, observations in the field condition showed an increase in yield of buckwheat under appropriate Se application levels (F1, L and M), but the grain yield of buckwheat did not increase with the amount of Se application (F2, H) (Table 5).…”

Section: Resultsmentioning

confidence: 99%

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Effects of selenium fertilizer on grain yield, Se uptake and distribution in common buckwheat (Fagopyrum esculentum Moench)

Jiang¹,

Zeng²,

Bu³

et al. 2015

Plant Soil Environ.

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Selenium (Se) is a significant trace element for human and livestock animals because of its physiological functions. Se in plants, especially in the crop plants, is treated as a critical dietary source. The effects of foliar spray together with soil application of Se on Se uptake, distribution in common buckwheat (Fagopyrum esculentum M.) plants were discussed in this study. The results showed that both foliar spray and soil application of Se increased Se uptake in common buckwheat significantly (P < 0.05). The highest Se content was observed in leaves (113.37-690.75 μg/ kg), followed by roots (28.98-283.78 μg/kg), grains (26.49-135.89 μg/kg) and stems (23.19-86.80 μg/kg). Se content in grains had the highest correlation coefficient (0.827 and 0.845) with soil Se application treatments. Grain yield of F1 (5 g Se/ha for foliar spray) was 3.65% and 10.25% higher than that of F0 (0 g Se/ha for foliar spray) in two study years, respectively. Under soil Se application conditions, mean grain yields fluctuated from 2890.5-3058.6 kg/ha, 2966.4-3352.8 kg/ha in 2012/2013, respectively. These results indicated a significant interaction effect of foliar spray Se and soil Se application on Se accumulation in common buckwheat. Appropriate Se application might improve common buckwheat grain yield.

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Section: Resultsmentioning

confidence: 63%

Section: Resultsmentioning

confidence: 99%

Effects of selenium fertilizer on grain yield, Se uptake and distribution in common buckwheat (Fagopyrum esculentum Moench)

Jiang¹,

Zeng²,

Bu³

et al. 2015

Plant Soil Environ.

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“…Although, it is not yet considered an essential element for higher plants, this status is recently given augmenting (Diao et al, 2014). Studies have shown the importance and benefits of Se for plants, particularly under abiotic stress, where it acts as an antioxidant and ameliorates the effects and protects plants under deleterious conditions such as salt stress (KeLing et al, 2013;Kaur andNayyar, 2015 andMozafariyan et al, 2016), also drought stress (Yao et al, 2009 andNawaz et al, 2015).…”

mentioning

confidence: 99%

Effect of Seed Soaking and Foliar Spraying With Selenium on the Growth and Yield of Lettuce Under Saline Stress

Shalaby¹,

Ramadan²

2017

Egyptian Journal of Desert Research

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he implementation of proper agricultural practices is important for reducing the effect of salt stress in plants. Therefore, this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions. Six different Se treatments; Se0 (without application as a control), Se1 (seed soaking in 30 µmol l -1 for 12 h), Se2 (seed soaking in 50 µmol l -1 for 12 h), Se3 (foliar application of 10 µmol l -1 ), Se4 (foliar application of 20 µmol l -1 ) and Se5 (foliar application of 30 µmol l -1 ) were applied. The results showed that Se provision through both of the tested methods improved the plant leaf number, chlorophyll content, as well as N, P, K and Ca concentrations in the leaves, when compared with the control treatment. Moreover, Na content decreased in the leaves, which were treated than those of the control treatment. The plants grown under the Se treatments had larger heads and higher yields than the untreated plants. Foliar spraying was the most effective method of Se application of the lettuce plants, and the best results were obtained with the foliar spraying treatment at 20 µmol l -1 sodium selenate. These results suggest that applying the appropriate dose of Se via foliar spraying has the potential for use as an efficient and practical method of improving plant growth and enhancing salt-stress resistance in lettuce plants.

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“…In N 22 , a gradual increase in its amino acid levels was noticed with the onset of stress period and doubled within (Fig.2a). Increase in the free amino acid concentration under water deficits is also reported in other crops (Nawaz et al, 2015;Perez et al, 1993). A considerable increase of the total amino acid concentration was observed in alfalfa phloem sap under decreased leaf water potential (Girousse et al, 1996).…”

Section: Amino Acidsmentioning

confidence: 53%

Effect of PEG mediated water stress on solute accumulation, relative water content, biomass and antioxidant enzymes in rice

Kundur

Reddy

Rao

2016

IJARe

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In rice, several cultivated and upland varieties need to be assessed and analyzed for drought tolerance traits which could be used in screening and breeding programs for drought tolerance. Hence, the objectives of this study were to investigate the effects of water deficits in two rice cultivars and thereby analyze the role of several physiological traits useful in rice breeding programs for drought tolerance. The rice varieties Tellahamsa (TH) and N 22 were screened for tolerance to drought. A comparative study was done subjecting them to PEG mediated water stress. Accumulation of solutes, i.e., proline, total free aminoacids and sugars; biomass production, Relative Water Content (RWC) and the levels of antioxidant enzymes, viz., Catalase (CAT), Ascorbate Peroxidase (APX), Glutathione Reductase(GR), and Superoxide Dismutase(SOD) were analyzed in response to water stress. Maximum proline accumulation was seen within 24hrs of stress, after 10 days TH decreased its proline to one-third, whereas in N 22 doubled. Although amino acids doubled within 24hrs, gradually they depleted in N 22 . This may be due to conversion of aminoacids into proline which could be the most compatible solute. Sugars increased within 24hrs, but were depleted in 10days in both. In TH, the shoot and root biomass decreased, whereas in N 22 there was a significant increase in root biomass. Shoot and root RWC of N 22 was higher than TH under stress. GR increased in both TH and N 22, APX and SOD increased only in N 22. Proline accumulation, increase of root biomass and antioxidant enzymes such as APX or SOD during water stress are contributing to drought tolerance and could be used in screening for drought tolerance.

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Effect of selenium foliar spray on physiological and biochemical processes and chemical constituents of wheat under drought stress

Cited by 231 publications

References 60 publications

Effects of selenium fertilizer on grain yield, Se uptake and distribution in common buckwheat (Fagopyrum esculentum Moench)

Effects of selenium fertilizer on grain yield, Se uptake and distribution in common buckwheat (Fagopyrum esculentum Moench)

Effect of Seed Soaking and Foliar Spraying With Selenium on the Growth and Yield of Lettuce Under Saline Stress

Effect of PEG mediated water stress on solute accumulation, relative water content, biomass and antioxidant enzymes in rice

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