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Effects of Seed Soaking with Paclobutrazol on Early Tillering and Endogenous Hormone Contents of Sugarcane Seedlings

查看全文 作　　者：Liu [1,2]Junxian;Li [1,2]Song;Tan [1]Fang;Xiong [3]Faqian;Wang [4]Xiaoman;Guo [5]Wenchan;Liu [1,2]Xin;He [1,2]Yibo;Wu [1]Kaichao;Liu [1,2]Limin;Liu [1,2]Hongjian;Yu [1,2]Kunxing;Dan [1,2]Ming;Lu [1,2]Manman 高影响力作者 机构地区：[1]Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China;[2]Collaborative Initiative Center of Guangxi Sugar Industry,Nanning 530007, China;[3]Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China;[4]Agricultural Product Quality Monitoring Center of Pingdingshan, Pingdingshan 467000, China;[5]Agricultural Technology Promotion Station of Xinxiang, Xinxiang 453003, China高影响力机构 出　　处：《Plant Diseases and Pests》索引2017年第8卷第1期,共5页高影响力期刊 基　　金：Supported by National Natural Science Foundation of China(31501362);Natural Science Foundation of Guangxi Province(2014GXNSFBA118289,2014GXNSFAA118090,2014GXNSFBA118068,2015GXNSFAA139063);Development Fund of Guangxi Academy of Agricultural Science(2015JZ13,2015JZ98,2014YQ01) 摘　　要：[Objective] The paper was to explore the effect of seed soaking with paclobutrazol( PP333) on early tillering and endogenous hormone content of sugarcane seedlings.[Method] With the sugarcane variety ROC22 as the experimental material,seeds were soaked in different concentrations of PP333. The number and growth of tiller were investigated,and the contents of endogenous hormones IAA,CTK,ABA and GA3 at two-leaf,four-leaf and six-leaf stages of sugarcane seedlings were measured,to study the effects of seed soaking with PP333 on early tillering and endogenous hormone contents of sugarcane seedlings.[Result] Seed soaking with PP333 could effectively improve and advance tillering occurrence of sugarcane seedlings. The suitable PP333 concentration for sugarcane tillering occurrence,growth and development was 50 mg/L. Seed soaking with PP333 significantly increased the CTK and ABA contents in leaves of sugarcane seedlings,and decreased IAA and GA3 contents. [Conclusion]The paper will provide a theoretical basis for application of PP333 in sugarcane production. 关 键 词：内源激素含量 甘蔗品种 分蘖发生 幼苗叶片 浸种处理 多效唑 PP333 ABA含量
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