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Selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing

A selenium (Se) biofortification program for vegetables has never been attempted in Malaysia. This study was performed to determine the optimum Se fertilization rates for high yield and Se uptake by green spinach (Amaranthus spp.) through a glasshouse experiment and to evaluate the effect of Se appl...

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Main Authors:	Nayan, Dayang Safinah, Zainol, Rozlaily, Abdul Sukor, Arina Shairah, Mohammad Yusoff, Martini, Ishak, Che Fauziah
Format:	Article
Published:	Wiley 2020
Online Access:	http://psasir.upm.edu.my/id/eprint/87553/ https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/agg2.20089
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id	my.upm.eprints.87553
record_format	eprints
spelling	my.upm.eprints.875532022-11-23T03:20:42Z http://psasir.upm.edu.my/id/eprint/87553/ Selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing Nayan, Dayang Safinah Zainol, Rozlaily Abdul Sukor, Arina Shairah Mohammad Yusoff, Martini Ishak, Che Fauziah A selenium (Se) biofortification program for vegetables has never been attempted in Malaysia. This study was performed to determine the optimum Se fertilization rates for high yield and Se uptake by green spinach (Amaranthus spp.) through a glasshouse experiment and to evaluate the effect of Se application timing on dry matter, growth, and Se accumulation in green spinach through field experiments. Glasshouse experiment conducted with factorial randomized complete block design showed that applying P fertilizer as recommended for green spinach increased yield and Se uptake by the leaves and stems of green spinach. Selenium application in the form of Se(IV) solution at 120 g ha–1 to sandy clay soil was determined to be the optimum application rate, as higher rates reduced plant yield and decreased Se uptake by green spinach. Three cycles of field experiments showed that a single application of 120 g ha–1 Se at 14 d after planting (DAP) produced the optimum results in terms of green spinach growth and dry matter. Although the highest Se accumulation in leaves was observed when Se was applied at 7 DAP (26.04–29.20 μg 10 plants–1), its detrimental effect on yield caused it to be considered an inappropriate time of application. Therefore, with optimum Se accumulation in leaves (21.16–22.38 μg 10 plants–1) and stems (5.89–5.98 μg 10 plants–1), application of Se as Se(IV) solution at 14 DAP at a rate of 120 g ha–1 has been identified as an effective Se fertilization management strategy for producing Se-biofortified green spinach. Wiley 2020-08-13 Article PeerReviewed Nayan, Dayang Safinah and Zainol, Rozlaily and Abdul Sukor, Arina Shairah and Mohammad Yusoff, Martini and Ishak, Che Fauziah (2020) Selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing. Agrosystems, Geosciences & Environment (AGE), 3 (1). pp. 1-16. ISSN 2639-6696 https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/agg2.20089 10.1002/agg2.20089
institution	Universiti Putra Malaysia
building	UPM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Putra Malaysia
content_source	UPM Institutional Repository
url_provider	http://psasir.upm.edu.my/
description	A selenium (Se) biofortification program for vegetables has never been attempted in Malaysia. This study was performed to determine the optimum Se fertilization rates for high yield and Se uptake by green spinach (Amaranthus spp.) through a glasshouse experiment and to evaluate the effect of Se application timing on dry matter, growth, and Se accumulation in green spinach through field experiments. Glasshouse experiment conducted with factorial randomized complete block design showed that applying P fertilizer as recommended for green spinach increased yield and Se uptake by the leaves and stems of green spinach. Selenium application in the form of Se(IV) solution at 120 g ha–1 to sandy clay soil was determined to be the optimum application rate, as higher rates reduced plant yield and decreased Se uptake by green spinach. Three cycles of field experiments showed that a single application of 120 g ha–1 Se at 14 d after planting (DAP) produced the optimum results in terms of green spinach growth and dry matter. Although the highest Se accumulation in leaves was observed when Se was applied at 7 DAP (26.04–29.20 μg 10 plants–1), its detrimental effect on yield caused it to be considered an inappropriate time of application. Therefore, with optimum Se accumulation in leaves (21.16–22.38 μg 10 plants–1) and stems (5.89–5.98 μg 10 plants–1), application of Se as Se(IV) solution at 14 DAP at a rate of 120 g ha–1 has been identified as an effective Se fertilization management strategy for producing Se-biofortified green spinach.
format	Article
author	Nayan, Dayang Safinah Zainol, Rozlaily Abdul Sukor, Arina Shairah Mohammad Yusoff, Martini Ishak, Che Fauziah
spellingShingle	Nayan, Dayang Safinah Zainol, Rozlaily Abdul Sukor, Arina Shairah Mohammad Yusoff, Martini Ishak, Che Fauziah Selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing
author_facet	Nayan, Dayang Safinah Zainol, Rozlaily Abdul Sukor, Arina Shairah Mohammad Yusoff, Martini Ishak, Che Fauziah
author_sort	Nayan, Dayang Safinah
title	Selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing
title_short	Selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing
title_full	Selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing
title_fullStr	Selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing
title_full_unstemmed	Selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing
title_sort	selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing
publisher	Wiley
publishDate	2020
url	http://psasir.upm.edu.my/id/eprint/87553/ https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/agg2.20089
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score	13.211869

Selenium biofortification of green spinach with optimum phosphorus fertilization and selenium application timing

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