Effects of Bioorganic Fertilizers on the Leaf Antioxidant Enzyme Activity and the Photosynthetic Characteristics of Replanted Szechuan Pepper, Zanthoxylum simulans  

作　　者：Shuheng Zhang Jing He Bin Wang Xiaoyan Zhang Qi Liu Dedong Ding 

机构地区：[1]College of Forestry,Gansu Agricultural University,Lanzhou 730070,People’s Republic of China [2]College of Forestry,Northwest A&F University,Yangling 712100,People’s Republic of China [3]Institute of Ecological Forestry,Sichuan Agricultural University,Chengdu 611130,People’s Republic of China

出　　处：《Journal of Agricultural Science and Technology(B)》2020年第4期255-263,共9页农业科学与技术（B）

基　　金：This study was supported by the Central Committee for guiding the local science and technology development sub-project“Study on the Structural Adjustment and Optimization Research and Platform Construction of the Characteristic Economic Forest and Pepper in Longnan”,and thanks for the International Science Editing(http://www.Internationalscienceediting.com)for editing this manuscript.

摘　　要：Continuous cropping obstacles hamper the efficient growth and yield of Szechuan pepper,Zanthoxylum simulans.The current study investigated the impact of different levels of bioorganic fertilizer on the leaf physiological and photosynthetic characteristics of Z.simulans to provide a theoretical reference for continuous Z.simulans crop cultivation.A bioorganic fertilizer was used to treat seedlings growing in 25-year-old continuous cropping soil.Five fertilizer treatments were applied.The impacts of the treatments on the activity of defense enzyme and photosynthetic parameters of Z.simulans leaves were determined.The different concentrations of bioorganic fertilizer reduced to varying degrees the malondialdehyde(MDA)content and intercellular CO2 concentration(Ci),and increased the activity of peroxidase(POD),superoxide dismutase(SOD),and ascorbate peroxidase(APX),as well as the chlorophyll content,net photosynthetic rate(Pn),stomatal conductance(Gs)and transpiration rate(Tr)of Z.simulans leaves.The results showed that most significant increases or decreases were achieved with 100 g/L bioorganic fertilizer(Y2).Thus,the application of bioorganic fertilizer at a rate of 100 g/L can significantly improve the activity of relevant defense enzymes and photosynthetic parameters of Z.simulans,and reduce the MDA content,enhancing the stress resistance of the plants,promoting their growth and addressing,to some extent,obstacles associated with continuous cultivation.

关 键 词：Bio-organic fertilizer continuous cropping obstacle Zanthoxylum simulans antioxidant enzyme activity photosynthetic characteristics 

分 类 号：Q94[生物学—植物学]