Physiological response to drought stress and drought resistance evaluation of greening plants in central division of expressway
The effects of drought stress on plant morphology and physiological and biochemical indexes were studied by pot water control method with five greening plants of Juniperus chinensis'Pyramidalis',Photinia × fraseri,Sabina chinensis,Prunus cerasifera'Atropurpurea',and Juniperus chinensis as experimental materials.The drought resistance of five greening plants was comprehensively evaluated by principal component analysis and membership function method.The results showed that the drought-resistant ability of the five greening plants was ranked from strong to weak:Juniperus chinensis'Pyramidalis'＞Juniperus chinensis＞Sabina chinensis＞Photinia × fraseri＞Prunus cerasifera'Atropurpurea'.The research results can provide a basis for the planting and maintenance of greening plants in the central division of expressways.
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