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Adaptation of Rice to the Nordic Climate Yields Potential for Rice Cultivation at Most Northerly Site and the Organic Production of Low-Arsenic and High-Protein Rice

文献类型： 外文期刊

作者： Fei, Mingliang 1 ; Jin, Yunkai 2 ; Jin, Lu 1 ; Su, Jun 4 ; Ruan, Ying 1 ; Wang, Feng 4 ; Liu, Chunlin 3 ; Sun, Chuanxin 2 ;

作者机构： 1.Hunan Agr Univ, Key Lab Crop Epigenet Regulat & Dev Hunan Prov, Changsha, Peoples R China

2.Swedish Univ Agr Sci, Uppsala BioCtr, Linnean Ctr Plant Biol, Dept Plant Biol, Uppsala, Sweden

3.Hunan Agr Univ, Coll Biosci & Biotechnol, Dept Hunan Prov Plant Genet & Mol Biol, Key Lab Educ, Changsha, Peoples R China

4.Fujian Acad Agr Sci, Inst Biotechnol, Fuzhou, Peoples R China

5.Hunan Agr Univ, Coll Agron, Changsha, Peoples R China

关键词： low-arsenic rice; high-protein rice; infant food; rice for cold climate; Uppsala rice cultivation; Baltic Sea

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.753； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2020 年 11 卷

页码：

收录情况： SCI

摘要： There is an urgent demand for low-arsenic rice in the global market, particularly for consumption by small children. Soils in Uppsala, Sweden, contain low concentrations of arsenic (As). We hypothesize that if certain japonica paddy rice varieties can adapt to the cold climate and long day length in Uppsala and produce normal grains, such a variety could be used for organic production of low-arsenic rice for safe rice consumption. A japonica paddy rice variety, "Heijing 5," can be cultivated in Uppsala, Sweden, after several years' adaptation, provided that the rice plants are kept under a simple plastic cover when the temperature is below 10 degrees C. Uppsala-adapted "Heijing 5" has a low concentration of 0.1 mg per kg and high protein content of 12.6% per dry weight in brown rice grain, meaning that it thus complies with all dietary requirements determined by the EU and other countries for small children. The high protein content is particularly good for small children in terms of nutrition. Theoretically, Uppsala-adapted "Heijing 5" can produce a yield of around 5100 kg per ha, and it has a potential for organic production. In addition, we speculate that cultivation of paddy rice can remove nitrogen and phosphorus from Swedish river water and reduce nutrient loads to the Baltic Sea and associated algae blooms.

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