定植和打顶及品种对雾培马铃薯器官建成的影响  

Effects of Node Number Control in Transplanting, Top-Pruning and Varieties on Organogenesis of Potato in Aeroponical Culture

作　　者：高旭[1] 王季春[1] 刘伟 唐道彬[1] 张凯[1] 吕长文[1] 陈香颖[1] 杨国才[1] 滕艳[1] 胡思淋[1] 杜川[1] 

机构地区：[1]西南大学农学与生物科技学院南方山地农业教育部工程研究中心,重庆400716 [2]重庆市农业技术推广总站,重庆401121

出　　处：《西南大学学报（自然科学版）》2013年第5期7-13,共7页Journal of Southwest University(Natural Science Edition)

基　　金：科技部973项目子课题"作物多样性群落结构对产量与品质的影响及其机理"资助(2011CB100402);重庆市马铃薯良创工程重点项目"专用型马铃薯新材料创制与新品种选育"(CSTC2012GGB80006);中央高校基本科研业务费专项基金资助项目(XDJK2011C004)

摘　　要：该试验采用L9(34)正交试验设计,研究了不同定植节数、打顶次数及品种对雾培马铃薯植株茎粗、根系、LAI,LOX活性及结薯能力的影响.结果表明:雾培马铃薯定植3节及打顶2次处理均能促进LOX活性增强、匍匐茎发生,增加块茎数量和质量;结薯能力与品种差异相关密切,品种费乌瑞它结薯能力最佳;同时发现LOX活性增强利于雾培马铃薯结薯.品种费乌瑞它结合定植3节和打顶2次为雾培结薯最优组合.An L9（34） orthogonal experiment was conducted to investigate the effects of node number con troi in transplanting, top-pruning times and varieties on stem diameter, roots, leaf area index （LAI）, li poxygenase （LOX） activity and tuberization of potato plants in aeroponical culture. The results indicated that transplanting with three nodes or top-pruning twice enhanced LOX activity, promoted stolon forma tion and increased tuber number and weight and that the capacity of tuberization was closely related to va riety and cv. Favorita produced the highest yield of tuber. High LOX activity was beneficial to tuberization of the plant. In conclusion, the optimum combination for increasing potato tuber number in aeroponical culture was planting cv. Favorita with three nodes in combination with double top pruning.

关 键 词：雾培马铃薯 品种 定植节数 打顶次数 

分 类 号：S532[农业科学—作物学]