Comparative Study on Natural Selenium-enriching Ability of 7 Main Cultivars of Pueraria lobata.

Kunpeng OU; Yuanning YANG; Xueli WANG; Risheng HUANG; Chengcheng FENG; Honghua HUANG; Yan WANG

Objectives: To screen out the selenium-enriched Pueraria lobata varieties suitable for cultivation in Guangxi according to the natural selenium-enriching ability of 7 main cultivars. Methods: Taking 7 main cultivars of P. lobata in diferent places as experimental materials, field cultivation was carried out on the selenium-enriched yellow soil in Shanglin County, Nanning City of Guangxi, to study the difference in selenium-enriching ability of different main cultivars and the comparison of selenium content in diferent parts, as well as the transport mechanism. & Results] Under the condition of soil selenium content of 0. 78 mg/kg, the selenium content of the root tubers of the 7 main cultivars al reached the selenium-enrichment standard. The selenium content of a single root tuber of Heping Variety in Teng County, Guangxi was the highest, at 0. 061 mg/kg; Guifenge No. 1 was the second at 0. 055 mg/kg, and the total selenium accumulation per unit area was the largest. The ranking of selenium content in diferent parts of the same variety was leaf > vine > head > root tuber. Conclusions: Guifenge No. 1 has the highest yield and the largest total selenium accumulation, so it is the most suitable natural selenium-enriched variety for cultivation.

Asian Agricultural Research, 2020, Vol 12, Issue 8, p45

1943-9903

Academic Journal

10.19601/j.cnki.issnl943-9903.2020.08.011