Allelopathic effects of Iva xanthiifolia on the germination and seedling growth of Raphanus sativus, Brassica campestris, B-pekinensis, B-juncea and B-oleracea and identification of allelochemicals

作者：Yao, S. K.^*; Li, F. L.; Li, F.; Feng, X.; Peng, L. N.; Dong, J. M.; Feng, Z.; Teng, C. H.; Zhang, J. F.; Zhao, Q. Q.; Yu, X. C.; Xu, Y. Q.^*; Hu, B. Z.^*

来源：Allelopathy Journal, 2018, 44(2): 201-218.

DOI：10.26651/allelo.j/2018-44-1-1151

• Allelochemicals
• allelopathy
• aqueous extract
• Brassica campestris
• B. juncea
• B. pekinensis
• B. oleracea
• ethylacelatqte
• GC-MS
• Iva xanthhfoha
• seed germination
• seedling growth
• Raphanus sativus

In laboratory bioassays, we evaluated the effects of Iva xanthhfoha leaf aqueous extract concentrations on the germination and seedling growth of Raphanus sativus, Brassica campestris, B. pekinensis, B. juncea and B. oleracea. With GC-MS we analyzed the chemical component off xanthhfoha leaf aqueous extract and studied their allelopathic effects on test plants. The I. xanthhfoha leaf aqueous extract promoted and inhibited the seed germination and seedling growth of R. sativus, B. juncea and B. campestris, exhibiting the hermetic effects. Whereas extracts suppressed the seed germination and seedling growth of B. juncea and B. oleracea. The main allelochemical in I. xanthhfoha extract was found in the neutral component. The inhibition was greatest in B. juncea and B. oleracea but less in R. sativus, indicating the variability in the allelopathic effects ofl. xanthhfoha. Ethyl acetate was used for the extraction off xanthhfoha leaf aqueous extract for GC-MC analysis, which identified 70-compounds, consisting mainly of allelochemicals (2-camphor, borneol, isovanillin, 2-methylallyl phenol, dibutyl phthalate, 1-caryophyllene and ambrosin).

• 出版日期2018-7
• 单位哈尔滨学院; 东北农业大学