The Effect of Foliar Application of Silicon Fertilizer on Some Qualitative Traits and Mineral Compositions of ‘Barhee’ Date Fruit under Soil Salinity Conditions

Document Type : Short Article

Authors

• Rahman Yousefi ¹
• Mohammadreza Pourghayoumi ¹
• Seyyed Samih Marashi ¹
• Ali Ghasemi ²

¹ Date Palm and Tropical Fruits Research Center, Horticultural Sciences Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Ahvaz, Iran

² Department of Horticultural Science, Faculty of Agriculture and Natural Resources, Persian Gulf University, Bushehr, Iran

10.22067/ifstrj.2023.81372.1239

Abstract

Introduction
Date palm (Phoenix dactylifera) is one of the most important horticultural products in arid and semi-arid regions of Iran. One of the factors affecting the quality and nutritional elements of date fruit- as an important and strategic fruit in the country, with high nutritional and health value- is the proper use of different nutritional elements during its growth and fruiting period. There are many reports of the negative effects of salinity on dates, both in the vegetative and reproductive growth stages. The osmotic effects limiting the absorption of water and nutrients, the specific effect of chlorine and sodium ions, nutritional imbalance and preventing the physiological processes and metabolism of nutrients and the use of high energy in osmotic regulation are some of the negative effects of salinity stress. Salinity stress negatively affected date fruit quality. Silicon is one of the essential nutrients that plays an important role in the growth and development of plants. Silicon reduces the adverse effects of abiotic stresses such as drought and salinity by affecting on the leaf and stem growth, and other plant mechanisms. Therefore, the aim of this study was to investigate the effect of foliar application of silicon on some qualitative characteristics and nutrient elements content of date fruit grown under high salinity soil.
 
Materials and Methods
 This research was conducted in a randomized complete block design with 7 treatments and 3 replicates in two consecutive years. Silicon foliar spray treatments consisted of: control or no application of foliar spraying (T1), foliar spraying with a concentration of 0.1% in two stages (T2), foliar spraying with a concentration of 0.1% in three stages (T3), foliar spraying with a concentration of 0.2% in two stages (T4), foliar spraying with a concentration of 0.2% in three stages (T5), foliar spraying with a concentration of 0.3% in two stages (T6) and foliar spraying with a concentration of 0.3% in three stages (T7). The treatments were repeated in two consecutive years, and in each fruiting season, fruit quality characteristics including total soluble solids (TSS), acidity (TA), pH and total sugar content were measured. Total sugar was measured according to Iran's national standard method No. 2685 (ISIRI, 2007). The concentrations of potassium, calcium, iron and zinc were also measured at the end of the second year of the experiment. Fruit quality characteristics and concentration of fruit nutrients were measured and statistically analyzed.
 
Results and Discussion
Foliar application of silicon fertilizer significantly increased the TSS of ‘Barhee’ date fruits while it decreased the pH of fruit juice. The lowest amount of total soluble solids was observed in T1 treatment at the rate of 63.69% and the highest amounts of fruit soluble solids were recorded in T5 and T6 treatments with values of 70.07% and 68.59% respectively. Fruit acidity and total sugar were not affected significantly by foliar application of silicon. The application of silicon significantly increased the contents of potassium, calcium, iron and zinc in date fruit, but it had no significant effect on the concentration of phosphorus in the fruit. The highest concentration of fruit potassium was observed in the T6 treatment (spraying with 0.3% silicon solution in two stages) at the amount of 1.54%. The lowest values of potassium concentration were observed in T3, T2 and T1 treatments with values of 0.89%, 1.01% and 1.06% respectively. Overall, Foliar application of silicon fertilizer can improve the quality characteristics and nutrient concentration of date fruit under salinity stress conditions. Among all the treatments, foliar application of silicon fertilizer with a concentration of 0.3% in two stages (three weeks before pollination and at the end of the Hababook stage) improved quality characteristics and the nutrient elements of ‘Barhee’ date fruit under high salinity soil.
 

Keywords

• Acidity
• Iron
• Potassium
• Total soluble solids
• Total sugar

Main Subjects

• Food Technology

©2023 The author(s). This is an open access article distributed under Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source.

References

1. Agricultural Statistics. (2022). Volume 3: Horticultural and greenhouse Products. Tehran, Ministry of Jihad Agriculture, Vice President of Statistics, Information and Communication Technology Center. 307p. (In Persian)
2. Chapman, H.D., & Pratt, P.F. (1961). Methods of analysis for soils, plants and waters. University of California, Division of Agricultural Sciences, Los Angeles.
3. Cheraghi Dehdezi, S., & Hamdami, N. (2012). Effect of storage at different temperatures on moisture content, total solublesolids, acidity and pH of dates (Kabkab variety).Journal Food Research, 22(2), 131-140. (In Persian with English abstract)
4. Cherif, M., & Belanger, R.R. (1992). Use of potassium silicate amendments in recirculating nutrientsolutions to suppress Pythium ultimum on long English cucumber. Plant Disease, 76(10), 1008-1011. https://doi.org/10.1016/0885-5765(92)90053-X
5. Epstein, E., & Bloom, A. (2004). Mineral nutrition of plants: principle and perspectives. Sinauer Associates Publish, Second Edition, 380p.
6. (2021). Food and Agriculture Organization of the United Nations. Available at: https://www.fao.org/faostat/en/#data
7. Fekry, W.M.E., Rashad, M.A., & Alalaf, A.H. (2020). Attempts to improve the growth and fruiting of barhi date-palms undersalinity stress. Asian Journal of Plant Sciences, 19(2), 146-151. https://doi.org/3923/ajps.2020.146.151
8. Ghasemi, K., Ghajar Sepanlou, M., & Haddadinejad, M. (2019). Effect of silicon on nutrient concentration, photosynthetic pigments and fruit quality ofstrawberry cv. Camarosa. Journal of Horticultural Plants Nutrition, 2(1), 85-98. (In Persian with English abstract). https://doi.org/22070/hpn.2019.4607.1036
9. Gottardi, S., Iacuzzo, F., Tomasi, N., Cortella, G., Manzocco, L., Pinton, R., Romheld, V., Mimmoe, T., Scampicchio, M., Costa, L.D., & Cesco, S. (2014). Beneficial effects of silicon on hydroponically grown corn salad (Valerianella locusta (L.) Laterr) plants. Plant Physiology and Biochemistry, 56, 14-23. https://doi.org/10.1016/j.plaphy.2012.04.002
10. (2007). Fruit juices – Test methods. Institute of Standards and Industrial Research of IRAN, Iran National Standard, 2685,1^st revision. (In Persian)
11. Jana, G.A., Al Kharusi, L., Sunkar, R., Al-Yahyai, R., & Yaish, M.W. (2019). Metabolomic analysis of date palm seedlings exposed to salinity and silicon treatments. Plant Signaling & Behavior, 14(11), 1663112. https://doi.org/1080/15592324.2019.1663112
12. Khan, A., Bilal, S., Khan, A.L., Imran, M., Al-Harrasi, A., Al-Rawahi, A., & Lee, I. (2020). Silicon-mediated alleviation of combined salinity and cadmium stress in date palm (Phoenix dactylifera) by regulating physio-hormonal alteration. Ecotoxicology and Environmental Safety, 188, 1-11. https://doi.org/10.1016/j.ecoenv.2019.109885
13. Kishor, K.P.B., Kumari P.H., Sunita M.S., & Sreenivasulu, L. (2015). Role of proline in cell wall synthesis and plant development and its implications in plant ontogeny. Frontiers in Plant Science, 20(6), 544. https://doi.org/3389/fpls.2015.00544
14. Liang, Y.C. (1999). Effects of silicon on enzyme activity and sodium , potassium and calcium concentration in barely undersalt stress. Plant Physiology, 29, 217-224. https://doi.org/1023/A:1004526604913
15. Matichenkov, V.V., Bocharnikova, E.A., Pahnenko, E.P., Khomiakove, D.M., Matichenkov, I.V., Zhan, Q., & Wei, X. (2015). Reduction of Cd, Cu, Ni, and Pb mobility by active Si in a laboratory study. Mine Water and the Environment, 35, 302–309. https://doi.org/1007/s10230-015-0353-5
16. Mirzakhani, M., Motesharezadeh, B., Mirseyed Hosseini, H., & Malmir, R. (2018). Effect of nano-silicon treatments on some physiological and nutritional responses of Lolium perenne in soils contaminated with heavy metals (Pb, Cd and Zn). Iranian Journal of Horticultural Science, 49(2), 563-577. (In Persian with English abstract). https://doi.org/22059/ijhs.2018.245896.1348
17. Mostaan, A., Latifian, M., Torahi, A., Amani, M., Mohebi, A., & Alihouri, M. (2017). Technical guide for cultivation and harvesting date palm. Publication of agricultural education. 282p. (In Persian)
18. Motamedzadegan, A., Porshayegan, M., Golkar, A., Maghsodi, S., & Bagheri, H. (2017). Effect of concentration on the physicochemical and rheological properties of grapefruit juice (Citrus paradise). Food Processing and Preservation Journal, 11(1), 131-142. https://doi.org/22069/ejfpp.2019.11424.1361
19. Pavlovic, J., Samardzic, J., Maksimovic, V., Timotijevic, G., Stevic, N., Laursen, K.H., Hansen, T.H., Husted, S., Schjoerring, J.K., Liang, Y., & Nikolic, M. (2013). Silicon alleviates iron deficiency in cucumber by promoting mobilization of iron in the root apoplast. New Phytologist, 198(4), 1096–1107. https://doi.org/1111/nph.12213
20. Qian, Q.Q., Zai, W.S., Zhu, Z.J., & Yu, J.Q. (2006). Effects of exogenous silicon on active oxygen scavenging systems in chloroplasts of cucumber (Cucumis sativus) seedlings under salt stress. Journal of Plant Physiology and Molecular Biology, 32(1), 107–112.
21. Sperling, O., Lazarovitch, N., Schwartz, A., & Shapira, O. (2014). Effects of high salinity irrigation on growth, gas-exchange, and photoprotection in date palms (Phoenix dactylifera, cv. Medjool). Environmental and Experimental Botany, 99, 100–109. https://doi.org/10.1016/j.envexpbot.2013.10.014
22. Waling, I., Vark, W.V., Houba, V.J.G., & Van der Lee, J.J. (1989). Soil and plant analysis, a series of syllabi. Part 7. Plant analysis procedures. Wageningen Agriculture University, The Netherlands.
23. Yousefi, R. (2016). The effect of micro- and nanoparticles of silicon dioxide on some morphological, physiological and biochemical characteristics of strawberry (Fragaria ananassa Duch.).D. Thesis, Bu-Ali Sina University. (In Persian with English abstract)