Comprehensive evaluation of plant selenium enrichment capacity and screening of high-potential selenium-enriched plants in selenium-rich area of Ankang City

doi:10.14088/j.cnki.issn0439-8114.2026.07.008

Abstract

Abstract: To screen plant resources with high selenium accumulation potential in selenium-rich areas of Ankang City, Shaanxi Province, a total of 121 sets of plant and rhizosphere soil samples were collected. Selenium content, translocation factor (TF), bioconcentration factor (BCF) and other indices were determined, and the selenium accumulation capacity of plants was comprehensively evaluated by the membership function method and cluster analysis. The results showed that the average selenium contents in shoots, roots and rhizosphere soil of plants in the study area were 4.30 mg/kg, 2.83 mg/kg and 12.89 mg/kg, respectively. The translocation factor of selenium was higher than 1 in 64.46% of the samples. The bioconcentration factor of selenium in shoots exceeded 1 in 11.57% of the samples, while that in roots was greater than 1 in 4.13% of the samples. Among them, the three indices of Hibiscus manihot L., Plantago asiatica L., Raphanus sativus L. and Brassica juncea (L.) Czern. were all greater than 1. Cluster analysis classified the plants into three categories by comprehensive selenium accumulation capacity: high potential plants (4.13%), moderate potential plants (9.92%) and low potential plants (85.95%). Brassica juncea (L.) Czern., Hibiscus manihot L., Sonchus asper (L.) Hill, Artemisia annua L. and Portulaca oleracea L. were identified as plants with high comprehensive selenium accumulation potential.

Key words: selenium, transport, enrichment, high-potential plants, screening, comprehensive evaluation, selenium-rice area, Ankang City

CLC Number:

X173
S158.3

DU Xiao-ping, WANG Qi, ZHU Ai-min, ZHANG Jun, ZHAO Jian-xiang, LIU Jia-long, ZHOU Chen-yao, ZHOU Dan-wen, ZHANG Ying, JING Lin-fei, WEI Xin-yi. Comprehensive evaluation of plant selenium enrichment capacity and screening of high-potential selenium-enriched plants in selenium-rich area of Ankang City[J]. HUBEI AGRICULTURAL SCIENCES, 2026, 65(7): 43-50.

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