Effects of phytotoxic extracts from peach root bark and benzoic acid on peach seedlings growth, photosynthesis, antioxidance and ultrastructure properties
文摘
The water- or ethanol-extracts of peach root bark and benzoic acid caused retarded growth of peach seedlings. Root bark extracts and BA triggered lipid peroxidation and activity of antioxidative enzymes;. Root bark extracts and BA reduced photosynthesis and pigment (chlorophylls and carotenoids) levels;. Root bark extracts and BA changed the root ultrastructure in varying degrees;. GC–MS identified 49 chemicals in peach root bark, among which, four potent allelopathic compounds occurred in higher amounts.