Effects of foliar application of selenate and selenite at different growth stages on Selenium accumulation and speciation in potato (Solanum tuberosum L.)

Zhang, Haiqing; Zhao, Zhong-Qiu; Zhang, Xin; Zhang, Wei; Huang, Liqiang; Zhang, Zezhou; Yuan, Linxi; Li, Xinwei

doi:10.1016/j.foodchem.2019.01.185

Cited by 103 publications

(65 citation statements)

References 38 publications

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“…The enrichment of underground parts of plants, such as the roots of carrots or potato tubers with I or Se, is possible because of the transportation of these elements through the phloem from the leaves to underground tissues. This effect was demonstrated in studies on biofortification with I in the cultivation of carrots (Signore et al, 2018) and potatoes (Ledwożyw-Smoleń et al, 2020), as well as in research on biofortification with Se in carrots (Oliveira et al, 2018) and potatoes (Zhang et al, 2019). There are no data on whether the foliar application of I and Se simultaneously will enrich carrot roots.…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of Foliar Biofortification of Carrot With Iodine and Selenium in a Field Condition

Rakoczy-Lelek¹,

Smoleń

Grzanka

et al. 2021

Front. Plant Sci.

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Iodine (I) and selenium (Se) are essential to human and animal development. There is a worldwide deficit of I and Se in the diet of humans, as well as in animals. It is advisable to enrich plants with these elements to ensure adequate uptake in animals and humans. The aim of this study was to determine the efficacy of the application of I and Se in the cultivation of carrot crops, to better understand the metabolic pathways and processes of I applied through foliar spray. Carrots were fertilized with 4-fold foliar applications of I and Se, which were applied as the liquid fertilizers “I + Se”, “Solo iodine” and “Solo selenium”, all containing an organic stabilizer, in two field trials. Foliar nutrient applications of I and Se were translocated by the plant for storage in the roots. The level of enriched I and Se in the roots was considered safe for the consumer. The Recommended Daily Allowance values for I and Se in the roots of 100 g of fresh carrots are 4.16% and 4.37%, respectively. Furthermore, I and Se accumulated in the roots to a level that was physiologically tolerated by carrot. Biofortification through foliar feeding did not impact negatively on the yield or quality of the carrot crop. Iodides applied via foliar application were the dominant form of I in the plant tissues and were included in the metabolic process of the synthesis of iodosalicylates, iodobenzoates, iodotyrosine (I-Tyr), and plant-derived thyroid hormone analogs. No synergistic or antagonistic interaction between I and Se, with respect to the effectiveness of biofortification in roots, was observed in any treatments. The molar ratio of I:Se in the roots after foliar application of both elements was approximately 1.6:1 and was similar to the control (1.35:1).

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Section: Discussionmentioning

confidence: 99%

Effectiveness of Foliar Biofortification of Carrot With Iodine and Selenium in a Field Condition

Rakoczy-Lelek¹,

Smoleń

Grzanka

et al. 2021

Front. Plant Sci.

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“…The studies of Rodrigo et al (2013) and Ekanayake et al (2015) describe the recovery efficiency of Se in barley and lentil grains that was four times higher at selenate foliar application than at selenite foliar application. Other experiments with potatoes point to the fact that the later selenium foliar application (in tuber enlargement phase) resulted in the increased total concentration of Se in tuber (Zhang et al 2019). Relatively few studies are aimed at the Se effect on (Tobiasz et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Selenium effect on wheat grain yield and quality applied in different growth stages

Zapletalová¹,

Ducsay²,

Slepčan³

et al. 2021

Plant Soil Environ.

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Small field plot experiments were carried out at the testing station of the Central Control and Testing Institute in Agriculture in Veľký Meder (Slovakia) in the experimental years 2014/2015, 2015/2016 and 2016/2017. Selenium salts in the form of sodium selenite and sodium selenate were applied in growth phases: end of tillering (BBCH 29) and flag leaf ligule and collar visible (BBCH 39). The effect of experimental years 2014/2015, 2015/2016 and 2016/2017 on the yield of wheat grain was not statistically significant within the observed variants. The achieved mean yields were in the range from 10.06 ± 0.81 to 11.07 ± 0.29 t/ha in 2014/2015, from 9.82 ± 0.54 to 10.32 ± 0.10 t/hain 2015/2016 and from 11.23 ± 0.76 to 11.64 ± 0.51 t/ha in 2016/2017. Selenate in comparison with selenite influenced the selenium accumulation in wheat grains more positively. However, a significant difference was recorded in variants with selenite application in the flag leaf growth phase in comparison with the end of tillering phase. The influence on the content of macroelements P, K, Ca and microelements Cu and Fe was observed in sodium selenite only; its application decreased the element content in comparison with the control variant. Statistically significantly higher values of fiber and fat were achieved after application of selenium in the flag leaf growth stage in comparison with the end of tillering.

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“…Thus, through agronomic biofortification it is possible to increase the intake of Se by humans, due to the Se enrichment of main food crops such as rice [14,[17][18][19] wheat [2,20] potato [21] and lettuce [16], for example. Selenium is also beneficial in defending plants against oxidative stress caused by oxygen radicals produced by internal metabolic or external factors [22] also delaying the effects of senescence at appropriate levels.…”

Section: Introductionmentioning

confidence: 99%

Effect of Rice Grain (Oryza sativa L.) Enrichment with Selenium on Foliar Leaf Gas Exchanges and Accumulation of Nutrients

Marques

Lidon

Coelho

et al. 2021

Plants

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An agronomic itinerary for Se biofortification of two rice cultivars (Ariete and Ceres) through foliar fertilization with sodium selenate and sodium selenite with different concentrations (25, 50, 75 and 100 g Se.ha−1), was implemented in experimental fields. The selenium toxicity threshold was not exceeded, as shown by the eco-physiological data obtained through leaf gas exchanges. The highest Se enrichment in paddy grains was obtained with selenite for both cultivars, especially at the highest doses, i.e., 75 and 100 g Se.ha−1, with approximately a 5.0-fold increase compared with control values. In paddy grains, Zn was the most affected element by the treatments with Se with decreases up to 54%. When comparing the losses between rough and polished grains regardless of the cultivars, Se species and concentrations, it was observed that only Cu, Mg and Zn exhibited losses <50%. The remaining elements generally had losses >70%. The loss of Se is more pronounced in Ceres cultivar than in Ariete but rarely exceeds 50%. The analysis by µ-EDXRF showed that, in Ariete cultivar, Se is mostly homogeneously distributed in the grain regardless of any treatments, while in Ceres cultivar, the Se distribution seems to favor accumulation in the periphery, perhaps in the bran.

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Effects of foliar application of selenate and selenite at different growth stages on Selenium accumulation and speciation in potato (Solanum tuberosum L.)

Cited by 103 publications

References 38 publications

Effectiveness of Foliar Biofortification of Carrot With Iodine and Selenium in a Field Condition

Effectiveness of Foliar Biofortification of Carrot With Iodine and Selenium in a Field Condition

Selenium effect on wheat grain yield and quality applied in different growth stages

Effect of Rice Grain (Oryza sativa L.) Enrichment with Selenium on Foliar Leaf Gas Exchanges and Accumulation of Nutrients

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