Allelopathic Effects of Invasive Plants Mikania micrantha and Cuscuta chinensis on Eucalyptus spp.
This study investigated the allelopathic effects of Mikania micrantha and Cuscuta chinensis on Eucalyptus seedlings by simulating three scenarios—M. micrantha parasitism,C. chinensis invasion,and concurrent M. micrantha invasion with C. chinensis parasitism—from a near-natural perspective. The aim was to provide insights for the biological control of M. micrantha. Key physiological and stress resistance indicators of eucalypt leaves were measured,including chlorophyll content,soluble sugar content,soluble protein content,malondialdehyde content,peroxidase activity,and superoxide dismutase activity. Results showed that all treatments—whether C. chinensis,M. micrantha,or a combination of both—resulted in decreased physiological indicators and increased stress resistance in eucalypt leaves. The combination of C. chinensis and M. micrantha showed promoting and inhibiting effects on physiological indicators and resistance indicators to Eucalyptus,respectively. All treatments negatively affected the growth and development of Eucalyptus,suggesting that C. chinensis was not a viable option for the biological control of Eucalyptus affected by M. micrantha under natural conditions.
万方数据
维普
