| 不同基因型甜高粱对重金属的吸收规律研究 |
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| 引用本文： | 唐桃霞,王致和,施志国,常瑛,张英英,李彦荣.不同基因型甜高粱对重金属的吸收规律研究[J].作物杂志,2019,35(6):50-493. |
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| 作者姓名： | 唐桃霞 王致和 施志国 常瑛 张英英 李彦荣 |
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| 作者单位： | 甘肃省农业工程技术研究院,733006,甘肃武威 |
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| 基金项目： | 甘肃省重点研发计划项目(17YF1FH101) |
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| 摘 要： | 为探明甜高粱在多种重金属共存土壤中对各重金属的吸收规律,筛选理想的土壤修复甜高粱品种。以含有不同浓度的Cu、Cd、Pb、As、Hg农田土壤为对象,以6种不同基因型甜高粱为供试材料,分析各甜高粱品种的生物学性状,植株体中各部位重金属分布特征和富集转移能力。结果表明：醇用型品种的糖锤度均显著高于饲用型品种;大卡的干物质量最大,其次是科甜1号和大奖1180。Cd、Pb、As主要分布在甜高粱根部,不易被转移;Hg易被转移,主要分布在叶部;Cu的分布因品种而异;Cd的富集系数最大为1.61,As最小仅为0.11,科甜1号对Cu和Hg的富集能力强,科甜2号对Pb和As的富集能力强,大奖1180对Cd的富集能力和对5种重金属的平均富集能力最强。
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| 关 键 词： | 甜高粱 重金属 吸收 富集 |
| 收稿时间： | 2019-06-03 |
Research on the Absorption of Heavy Metals by Different Genotypes in Sweet Sorghum |
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| Tang Taoxia,Wang Zhihe,Shi Zhiguo,Chang Ying,Zhang Yingying,Li Yanrong.Research on the Absorption of Heavy Metals by Different Genotypes in Sweet Sorghum[J].Crops,2019,35(6):50-493. |
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| Authors: | Tang Taoxia Wang Zhihe Shi Zhiguo Chang Ying Zhang Yingying Li Yanrong |
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| Institution: | Gansu Academy of Agri-Engineering Technology, Wuwei 733006, Gansu, China |
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| Abstract: | In order to precisely figure out the regular absorption pattern of sweet sorghum to multiple heavy metals, and to select the ideal soil phytoremediation varieties, the research was conducted in the fields containing different concentrations of Cu, Cd, Pb, As, Hg with six different genotypes as the test materials, which aimed to analyze the biological traits, heavy metals content distribution, enrichment capacity and transfer capacity. The results showed that: The sugar rate of alcohol-type varieties was significantly higher than that of forage-type varieties; the dry matter quality of Daka was the largest, followed by Ketian 1 and Dajiang 1180; Cd, Pb and As were mainly distributed in the roots of sweet sorghum, which was not easy being transferred, while Hg was easily transported, mainly distributed in the leaves, and the distribution of Cu varies in different varieties. Ketian 1 possessed the strongest accumulation ability for Cu and Hg, and Ketian 2 possessed the strongest accumulation ability for Pb and As, The Dajiang 1180 possessed the strongest accumulation ability for Cd and the strongest average accumulation ability for 5 heavy metals. |
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| Keywords: | Sweet sorghum Heavy metals Absorption Enrichment |
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