Research Progress of Selenium-enriched Millet

doi:10.11924/j.issn.1000-6850.casb2021-0983

Abstract

Abstract:

The paper aims to explore the absorption characteristics of selenium element in millet and improve the selenium level of millet. The paper summarized the research status on selenium-enriched grain of millet at home and abroad from the selenium content, existing form, absorption and transport mechanism, and the relationship between selenium and millet growth and development. The transport mechanism of selenium in different valence states in millet, and the effects of selenium fertilizer types and fertilization methods on the growth and quality of millet were analyzed. The analysis showed that the absorption mechanism of millet on selenate was mainly the active absorption by sharing sulfate transporters, while the absorption of selenite was the passive absorption and regulated by soil pH. Spraying inorganic selenium on leaves was the most direct method to increase selenium content in millet, which accelerated selenium absorption and transportation efficiency to grains. The study pointed out the shortcomings in the current development of selenium-enriched millet, and came up with suggestions as strengthening the selection and breeding of selenium-enriched varieties and formulating cultivation techniques and standards for selenium-enriched millet.

Key words: selenium, millet, grain selenium content, selenium fertilizer, research progress

CLC Number:

S515

LI Xingxing, HAN Fang, ZHOU Xue, SU Leping, YUAN Hong’an. Research Progress of Selenium-enriched Millet[J]. Chinese Agricultural Science Bulletin, 2022, 38(7): 1-6.

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