脱毒微型马铃薯种植密度对一级原种产量的影响  

Effects of Planting Density of Virus-free Mini-potato on Yield of First Original Seed Potato

作　　者：黄艳岚[1] 王云高 易九红[1] 周虹[1] 杨永平 李祯凤 

机构地区：[1]湖南省作物研究所,长沙410125 [2]湖南省马铃薯脱毒快繁中心,长沙410219 [3]丘北县种子管理站,云南丘北663200 [4]丘北县辣椒研究所,云南丘北663210

出　　处：《作物研究》2014年第5期482-484,共3页Crop Research

基　　金：湖南省农业科学院科技创新项目(2011hnnkycx11)

摘　　要：通过对2.5～5g脱毒微型马铃薯4个种植密度水平的比较试验,结果表明：密度为135000株/hm^2时种薯产量和每平方米种薯总数最大,分别为16404.0kg/hm^2和147.2粒;密度为120000株/hm^2时单株产量和单株结薯数最大,分别为235.2g和12.1粒;密度为135000株/hm^2和120000株/hm^2时产生的经济效益相当.因此,2.5～5g微型马铃薯繁种时以120000～135000株/hm^2为宜.A comparative study on effect of 4 planting densities of virus -free potato with 2.5~5 g weight on yield of first original seed potato was conducted.The results showed that the yield and quantity per m 2 of seed potato were highest , 16 404.0 kg/hm2 and 147.2 grain/m2 respectively , when the density was 135 000 plants/hm2.When the density was 120 000 plants/hm2 ,there had the highest yield per plant and the maximum grain number per plant ,235.2 g and 12.1 grain per plant respectively.The economic benefit of the above two densities was equivalent.So 120 000~135 000 plants/hm2 was suitable for propagating seed potato with 2.5~5 g mini-potato.

关 键 词：马铃薯 繁殖 种植密度 产量 经济效益 

分 类 号：S532.038[农业科学—作物学]