Natural Selenium-enriching Ability of 7 Sweet Potato Varieties

HUANG Ting; WAN Ling; CHEN Yanli; SI Chengcheng; ZENG Liping

doi:10.15886/j.cnki.rdswxb.2019.04.006

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Seven varieties of sweet potato（Ipomoea batatas Lam.） were planted in a field experiment to observe their difference in selenium-enrichment ability between the varieties and between the parts of the plants of the same variety in Se-enriched sandy land in Chengmai, Hainan. The results found that the seven sweet potato varieties in the field experiment were significantly different in selenium enrichment ability. The variety′Xushu 18′ had a total selenium content of 0.005 43 mg·kg^-1, the highest in selenium-enriching ability, followed by the variety′Gaoxi 14′(0.004 6 mg·kg^-1), and the variety Ning Zishu 1 was the lowest with the total selenium content of 0.004 18 mg·kg^-1. In addition, different parts of sweet potato plants were significantly different in selenium-enriching ability. The whole leaf had the highest selenium-enriching ability, followed by the stem, while the roots were the lowest. The variety′ Xushu 18′ contained 0.002 9 mg·kg^-1 of selenium in their leaves, the highest among all the varieties.

Natural Selenium-enriching Ability of 7 Sweet Potato Varieties

College of Horticulture/Sweet Potato Research Center, Hainan University, Haikou, Hainan 570228, China

Received Date: 2019-04-19

Rev Recd Date: 2019-09-26

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Abstract: Seven varieties of sweet potato（Ipomoea batatas Lam.） were planted in a field experiment to observe their difference in selenium-enrichment ability between the varieties and between the parts of the plants of the same variety in Se-enriched sandy land in Chengmai, Hainan. The results found that the seven sweet potato varieties in the field experiment were significantly different in selenium enrichment ability. The variety′Xushu 18′ had a total selenium content of 0.005 43 mg·kg^-1, the highest in selenium-enriching ability, followed by the variety′Gaoxi 14′(0.004 6 mg·kg^-1), and the variety Ning Zishu 1 was the lowest with the total selenium content of 0.004 18 mg·kg^-1. In addition, different parts of sweet potato plants were significantly different in selenium-enriching ability. The whole leaf had the highest selenium-enriching ability, followed by the stem, while the roots were the lowest. The variety′ Xushu 18′ contained 0.002 9 mg·kg^-1 of selenium in their leaves, the highest among all the varieties.

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Natural Selenium-enriching Ability of 7 Sweet Potato Varieties

doi: 10.15886/j.cnki.rdswxb.2019.04.006

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通讯作者: 陈斌, bchen63@163.com

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