|
Abstract Salt tolerant cucumber variety‘Jinchun No.5’and salt sensitive variety‘Jinyou No.1’were used with
NaCl concentration as 0 and 200 mmol·L-1,root exudates concentration as 0，30 mL per plant and 20 mL per plant to
study the effect of cucumber root exudates on soil nutrients and enzyme activities under salt stress by pot
experiment.Results showed that salt stress inhibited stem diameter,plant length,soil enzyme activities,alkali-
hydrolyzable nitrogen content,available phosphorus content and organic matter content,and significantly increased
available potassium.Under salt stress,except available potassium,low concentration of root exudates(30 mL per
plant)promoted every index in each treatment,eased salt stress to some extent;high concentration of root exudates(20
mL per plant)inhibited or significantly inhibited every index in each treatment,aggravated slat stress.
|
