Abstract:

Invasive plant Solidago canadensis L. and the native plant Solidago decurrens Lour. were used as donor plants, and wheat was employed as a receiver to study the effect of the solutions containing water extracts from the two different donors,on physiolbiochemical changes and microstructure of wheat receiver. The result showed that the specific solutions containing water extracts from Solidago canadensis L. and Solidago decurrens Lour. significantly decreased the growth of wheat. The protective enzyme activities such as SOD、POD and CAT in receiver plant (wheat) were increased to different extent in the responses to the stress of the extracts from the two donor plants, and the extract damaged root tip, in turn reduced root activity of wheat, consequently led to decreased ability to uptake nitrogen, phosphorus, potassium and reduced fresh and dry weights of wheat, when compared with the control. The solution with water extracts from the invasive plant Solidago canadensis L. has higher significant effect on physiobiochemical properties, and microstructure of wheat than that from the native plant Solidago decurrens Lour.