Allelopathic effects of volatile compounds from Eucalyptus grandis on Vigna radiata, Raphanus sativus and Lactuca sativa

作者：Wang, C. Z.; Zhang, D. J.^*; Zhang, J.; Ji, T. W.; Tang, Z. Q.; Zhao, Y. Y.

来源：Allelopathy Journal, 2015, 36(2): 273-282.

• Allelopathic effects
• Eucalyptus grandis
• Lactuca sativa
• lettuce
• malondialdchyde (MDA)
• mungbean
• radish
• Raphanus sativus
• roots vitality
• seed germination seedling growth
• Vigna radiata
• volatile compounds

The allelopathic effects of 3-relatively abundant volatile compounds [n-octane, 2,4-di-tert-butyl phenol and 2,2 '-methylene bis (6-tert-butyl-4-methyl phenol)] present in the soil of Eucalyptus granclis plantation (1-10 years old) were studied on the seed germination, seedling growth and two physiological indicators [(seedling's malondialdehyde (MDA) and roots' vitality (by triphenyl tetrazolium chloride (TTC)] of Vigna radiata, Raphanus sativus and Lactuca sativa. The inhibitory effects of 2, 4-di-tert-butyl phenol was strongest on the target plants. The three volatile compounds at high concentrations [n-octane, 1%; 2,4-di-tert-butyl phenol, 10 mmol/E; 2,2 '-methylene bis (6-tert-butyl-4-methyl phenol)], 10 mmol/E) inhibited the seed germination, root length, seedling height and the seedling / root fresh weight ratio of Vigna radiata, Raphanus sativus and Lactuca sativa, but low concentrations were less inhibitory or stimulatory. All three volatile compounds at low concentrations were slightly stimulatory to seedling's MDA content and were less inhibitory to seedlings roots' vitality TTC. At low concentrations, the n-octane and 2, 2'-methylene bis (6-tert-butyl -4- methyl phenol) were less stimulatory to the seedlings root's vitality. However, 2, 2'-methylene bis (6-tert-butyl -4- methyl phenol) even at lower concentrations inhibited the V. radiata seedling's MDA content

• 出版日期2015-10
• 单位四川农业大学