2011•Northern HorticultureRequires access
Effects of Sub-low Temperature on Physiological Characteristics of Eggplant Seedlings Leaves
Yang Yanjie
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Abstract
Three eggplant lines were taken as experimental materials,whose low temperature resistance were defficient.The physiological characteristics of the three lines,treated under sub-low temperature(D 18℃/N 12℃,day/night),taking the treatment(D 25℃/N 20℃) as control were researched.The contents of soluble sugar,soluble protein,proline and changes of the activities of SOD,POD in eggplant seedling leaves were determined.The results showed that with the extension of the sub-low temperature time,the contents of soluble sugar,proline and the activity of SOD,POD in the leaves of eggplant increased at first and then decreased,and the peak appeared at 2～4 d,while the contents of soluble protein decreased continuous.Restore the temperature(D 25℃/N 20℃) 2 d,the contents of proline and the activities of SOD,POD increased.The changes trend of physiology characteristics were similar among the three eggplant lines,but the amplitude were different.