Title: Effect of salicylic acid on cold tolerance of Cinnamomum camphora seedling under low temperature stress
Abstract: [Objective]The effect of salicylic acid(SA) on cold tolerance of Cinnamomum camphora seedling was studied under low temperature stress in order to provide references for introducing C.camphora to Northern China.[Method]One year old potted C.camphora seedlings were used as test material.After spraying SA in different concentrations,the test materials were treated with low temperature stress(5℃) .The parameters such as conductivity,photosynthetic rate,chlorophyll content,activity of antioxidative enzymes,MDA content and soluble sugar content were assayed.[Result]SA was found to reduce chlorophyll degradation,MDA content and plant tissue conductivity,while its application improved the photosynthetic rate and SOD and POD activity.The application of 2 mmol/L SA showed the best effects on C.camphora seedlings,while 5 mmol/L SA had inhibitory effect on the growth of C.camphora seedlings.[Conclusion]It has been concluded that SA in appropriate concentration can slow down the effect of low temperature and support normal growth and development of C.camphora.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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