Effect of Lipophilic Extract from Lasia spinosa (L.) Thwaites (Araceae) on Seed Germination and Seedling Growth of the Invasive Plant Mimosa diplotricha C. Wright ex Sauvalle

บทคัดย่อ

The effect was studied of the lipophilic extract from Lasia spinosa (L.) Thwaites rhizome on the seed germination and seedling growth of the invasive plant, Mimosa diplotricha C. Wright ex Sauvalle during September–November 2012 using five different extract concentrations (0, 10, 20, 30 and 40 mg.mL-1). The results revealed that 1 wk after transplanting, the extract had an effect on the seed germination and on seedling growth and characteristics. When the concentration was increased, the shoot and root length decreased significantly (P < 0.05) Thin layer chromatography screening and preliminary testing and detection using different specific reagents showed the presence of terpenoids, phenolic compounds, coumarin, alkaloids and C-glycoside in the extract.