不同播期对不同品种马铃薯成苗数和产量的影响  

Effects of Different Sowing Dates on Seedling and Yield of Different Potato Varieties

作　　者：张永旺 王俊 王凯博[2] 郑太波 ZHANG Yongwang;WANG Jun;WANG Kaibo;ZHENG Taibo(College of Life Sciences,Yan'an University,Yan'an,Shaanxi 716000,China;Institute of Earth Environment,Chinese Academy of Sciences,Xi'an,Shaanxi 710075,China;Yan’an Research Institute of Agricultural Sciences,Yan'an,Shaanxi 716000,China)

机构地区：[1]延安大学生命科学学院,陕西延安716000 [2]中国科学院地球环境研究所,陕西西安710061 [3]延安市农业科学研究所,陕西延安716000

出　　处：《陕西农业科学》2021年第5期22-27,共6页Shaanxi Journal of Agricultural Sciences

基　　金：延安大学科研项目(YDQ2018-21);延安大学博士科研启动项目(YDBK2017-25);创新能力支撑计划(2020KJXX-009);中国科学院“西部之光”人才培养引进计划(XAB2018A01)。

摘　　要：为确定陕北地区最适宜的马铃薯品种和播期,对该地区3种熟期、4种品种和4个播期的马铃薯在成苗数和产量上的差异进行分析。结果表明,从5月16日到6月5日,随着播期的延迟,早熟品种“费乌瑞它”的成苗数和产量逐渐下降,该品种适宜在5月中旬播种,早熟品种LK99和中熟品种克新1号适宜在5月中下旬播种,而晚熟品种青薯9号适宜在6月中旬播种。如果条件允许,建议青薯9号品种作为研究区的适宜栽培品种,温度、光照和水分是影响马铃薯产量的关键因子。In order to select the most suitable potato varieties and sowing date for northern Shaanxi,the differences of seedling number and yield of potato in three ripening periods,four varieties and four sowing dates were analyzed.The results showed that the number of seedlings and the yield of the early-maturing variety“FWRT”decreased with the delay of the sowing dates during 16 May to 5 June.So“FWRT”was suitable for sowing in mid-May,and the early-maturing variety LK99 and medium-maturing variety KX1 were suitable for sowing in the middle and late May,and late-maturing variety QS9 was suitable for sowing in mid-June.If conditions permit,QS9 can be a suitable cultivar in the study area,and temperature,light and moisture are the key factors affecting potato yield.

关 键 词：陕北 播期 品种 产量 马铃薯 

分 类 号：S532[农业科学—作物学]