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Agro-biofortification of maize with selenium for higher grain selenium contents and productivity

文献类型： 外文期刊

作者： Shah, Tariq 1 ; Alahmadi, Tahani Awad 2 ; Ansari, Mohammad Javed 4 ; Khan, Zeeshan 5 ; Khan, Hamad 6 ;

作者机构： 1.Univ Agr, Fac Crop Prod Sci, Dept Agron, Peshawar 25130, Pakistan

2.King Saud Univ, Coll Med, Dept Pediat, POB 2925, Riyadh 11461, Saudi Arabia

3.King Saud Univ, King Khalid Univ Hosp, POB 2925, Riyadh 11461, Saudi Arabia

4.Mahatma Jyotiba Phule Rohilkhand Univ, Hindu Coll Moradabad, Dept Bot, Bareilly, India

5.Natl Univ Sci & Technol, Atta Ur Rahman Sch Appl Biosci, Dept Plant Biotechnol, Islamabad 44000, Pakistan

6.Chinese Acad Agr Sci, State Key Lab Cotton Biol, Inst Cotton Res, Anyang 455000, Henan, Peoples R China

关键词： Se; Biofortification; Micronutrients; Plant growth; Soil enrichment; Trace element

期刊名称：SOUTH AFRICAN JOURNAL OF BOTANY （ 影响因子：3.1； 五年影响因子：3.1 ）

ISSN： 0254-6299

年卷期： 2024 年 168 卷

页码：

收录情况： SCI

摘要： Selenium (Se) is a vital mineral nutrient for animal and human health, which can be supplemented through seed biofortification techniques. Present study determined the potential of improving Se content in maize grain via several Se fertilizer application methods to enhance the nutritional status of native populations. Field trials were conducted for two growing years with different Se application methods and application rates to evaluate grain Se content in maize, Se recovery, grain macro- and micro-nutrients and grain yield under rain-fed conditions. Results demonstrated that foliar and soil Se applications showed no significant impacts on maize biomass and grain yield as well as maize grain N, P, K, Ca, Mg, Fe, Mn, Cu and Zn contents. However, both foliar and soil Se application significantly enhanced the maize grain Se content. Foliar application of Se exhibited greater Se recoveries of 54 % and 108 % in the grain over soil Se fertilizer for the first and second growing seasons while the later was recorded with only 1.71 % and 0.97 % increase as compared to control. In conclusion, foliar Se application at silking stage at the rate of 8.85 mM enhanced the grain Se content in maize at minimum costs as compared to soil Se application. (c) 2024 SAAB. Published by Elsevier B.V. All rights reserved.

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