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- Title
Effect of Heavy Metal Stress on Seed Germination of Albizia julibrissin.
- Authors
Ying ZHAO; Xuhui LIU; Lingling ZHENG; Linhong CHEN; Yongrong QIN
- Abstract
[ Objectives] This study was conducted to investigate the effects of different heavy metal stresses on seed germination, in order to provide a theoretical basis for phytoremediation of soil heavy metal pollution. [Methods]With the seeds of A. julibrissin as an experimental material, the germination test of A. julibrissin seeds under different concentrations of Cu2 •, Zn2 • and Pb2 • was carried out. The germination potential, germination rate, germination index, radicle length, embryo length and other indexes were measured. [Results] CD Different heavy metals had different effects on the germination of A. julibrissin seeds. Low concentrations of Cu", Zn2 • and Pb" stresses had certain promotion effects on the germination of A. julibrissin seeds, but high concentrations of Cu", Zn", Pb" stresses had obvious inhibitory effects on the germination of A. julibrissin seeds. ~ There were obvious differences in the tolerance of A. julibrissin seeds to different metal ion stresses. According to the comparison of the average values of membership functions, the order of their tolerance to different heavy metal ions was: Zn2 ' >Cu" > Pb2 •. [Conclusions] In the case of light pollution, the germination of A. julibrissin seeds was not inhibited, and the use of this plant for the remediation of lightly contaminated soil with heavy metals can also be considered
- Subjects
HEAVY metals; GERMINATION; SOIL remediation; HEAVY metal toxicology; ALBIZIA; LIGHT pollution
- Publication
Agricultural Biotechnology (2164-4993), 2021, Vol 10, Issue 2, p48
- ISSN
2164-4993
- Publication type
Article