多效唑浓度对脱毒马铃薯原原种生产的调控效果  

Regulation Effect of Paclobutrazol Concentration on Seed Production of Original Virus-free Potato

作　　者：张绍荣[1] 龙国[1] 龙卫金[1] 陈丽萍[1] 

机构地区：[1]贵州省毕节地区农业科学研究所,贵州毕节551700

出　　处：《贵州农业科学》2012年第2期61-64,共4页Guizhou Agricultural Sciences

基　　金：贵州省重大专项项目"贵州省马铃薯产业化关键技术研究与示范"子项目"中晚熟马铃薯种薯扩繁体系建设示范"[黔科合重大专项字(2008)6009]

摘　　要：为了探索多效唑在马铃薯原原种生产中对植株徒长的控制效果,采用单因素随机区组试验,研究了不同浓度多效唑(100mg/L、150mg/L、200mg/L、250mg/L及300mg/L等5个浓度)对马铃薯早熟品种毕引2号、中晚熟品种毕引1号原原种生产的影响。结果表明:施用多效唑在100～300mg/L时,地上部防控效果、地下部结薯数量和产量均较对照明显提高;250mg/L和200mg/L 2个处理施用效果极显著优于其他处理。建议:在马铃薯原原种生产中应采用200～250mg/L浓度的多效唑防控徒长。Two potato varieties were tested by the single-factor random block design to study the regulation effect of different paclobutrazol concentration on excessive growth of potato plantlets in original potato production. The results showed that the micro-potato number and yield of potato plants applied with 100~300 mg/L paclobutrazol were significantly higher than CK. The potato seed number and yield of potato plants applied with 250 mg/L and 200mg/L paclobutrazol were very significantly higher than other treatments. Conclusion： The 200-250mg/L paclobutrazol should be used to control excessive growth of potato plants in production of original virus-free potato.

关 键 词：马铃薯 原原种生产 多效唑 浓度 徒长防控 

分 类 号：S532[农业科学—作物学]