A preliminary study on allelopathic effects of invasive weed, Datura stramonium L., on cultivated plants
The allelopathic effects of the aqueous extract from Datura stramonium L. leaf on the physiological and biochemical mechanism of Brassica campestris, Capsicum annuum and Arnaranthus tricolor were studied by using indoor petri dish bioassay method. The results showed that the aqueous extract of D. stramonium leaf had promoted/inhibited effect on the activity of superoxide dismutase (SOD) in three species, decreased peroxidase (POD) activity in B. campestris and increased that in Capsicum annuurn and Amaranthus tricolor. In the meantime, the aqueous extract improved the contents of malondialdehyde (MDA) in all tested species. In addition, low concentration of extract increased root activity of Capsicum annuurn and Amaranthus tricolor, while all kinds of treatments significantly decreased root activity of Brassica catnpestris.
国家科技期刊平台
NSTL
万方数据
维普
