Abstract：In order to study on aged seed vigor of cucumber（Cucumis sativus L.），taking 5 years
old cucumber seeds‘ Nanshui No.1’，‘Chaoshi No.1’，‘Nankang No.1’ as experimental materials，
this paper studies the effects of priming by different solid matrix on aged seed vigor of cucumber．The
results showed that the solid matrix priming treatment could improve the membrane permeability，
reduce membrane lipid per-oxidation, increase seed vigor and promote its germination．Generally，
vermiculite and perlite could enhance the germination percentage and germination ratio of cucumber
seeds，reduce the relative electric conductivity，soluble sugar content and malondialdehyde（MDA）
content in seedling leaves，and increase superoxide dismutase（SOD）activity in different extent．
However，there was no significant difference between the coconut husk and the control in germination
characteristics and physiological indexes of aged cucumber seeds．
