薯型与栽培密度对繁育马铃薯脱毒种薯规格的影响  

Effects of Potato Type and Planting Density on Specification of Virus-free Seed Potato Propagation

作　　者：刘许辉[1] 杜希夷 杨艺玲[1] 蒋晓丹 蔡厚军 钟坤[1] 李家文[1] 侯丽英[1] 文爱忠 LIU Xuhui;DU Xiyi;YANG Yiling;JIANG Xiaodan;CAI Houjun;ZHONG Kun;LI Jiawen;HOU Liying;WEN Aizhong(Guilin Branch,Guangxi Academy of Agricultural Sciences/Guilin Center for Agricultural Sciences,Guilin,Guangxi 541006,China)

机构地区：[1]广西农业科学院桂林分院/桂林市农业科学研究中心,广西桂林541006

出　　处：《贵州农业科学》2020年第10期24-27,共4页Guizhou Agricultural Sciences

基　　金：广西创新驱动发展专项资金项目“桂北马铃薯脱毒种薯本土化繁育技术体系建设与产业化示范”(桂科AA17204054-3)。

摘　　要：为繁育马铃薯小种薯提供技术参考,设2种薯型和4个密度播植,研究不同密度下马铃薯原种繁育的产量和种薯规格情况。结果表明:整切薯播种密度为66700株/hm^2时的马铃薯产量均最高,分别为31493.55kg/hm^2和30626.40kg/hm^2;密度为50025株/hm^2时的整薯播种获得的小整薯最多,占5.88%;30~50g/个的小整薯率随播种密度的加大呈先增后减趋势;整薯播种的田间表现均优于切薯播种。桂北地区可选择50025株/hm^2的整薯繁育原种。To provide the technological reference for propagation of little seed potato,two potato types and four planting densities are conducted to study the yield of stock potato propagation and seed potato specification under different densities.Result:When the sowing density of cut potato is 66700 plant/hm^2,the yield of potato is the highest,respectively 31493.55 kg/hm^2 and 30626.40 kg/hm^2.When the sowing density of whole potato is 50025 plant/hm^2,the little potato is the most,accounting for 5.88%.The little whole tuber rate of 30-50 g/potato shows a first rising and then decreasing trend with increase of sowing density.The field performance of whole tuber sowing is better than that of cut potato sowing.The whole potato with 50025 plant/hm^2 can be used for propagation of original seed in Northern Guangxi.

关 键 词：马铃薯 繁育 薯型 密度 产量 

分 类 号：S532[农业科学—作物学]