脱毒马铃薯微型薯种植密度与原种产量及结薯性状的试验研究

Effects of Different Planting Density on Yield of First Original Seed and Tuber Traits in Virus-free Potato Minitubers

对日喀则市主推的脱毒马铃薯品种“艾玛1号”、“艾玛2号”不同微型薯种植密度(6000、7000、8000粒/667m^2)3个试验处理,采用随机区组试验设计,对生育期、结薯性状、产量方差分析探讨不同种植密度处理下2个品种最佳种植密度。结果表明:随着微型薯种植密度的增大,产量逐渐增加,大薯率随着密度的增加逐渐减少,为生产合格脱毒原种和节约成本提供科研数据。

The randomized block design was conducted to study the effect of different planting density(three treatment 400,466.67,533.33 grain/hm 2)on growth season,tuber traits and yield in the main varieties of virus-free potato Aima 1,Aima 2in Rikaze.The results showed that as the planting density increased,the yield was increased,but the rate of large tuber was decline.This study provides useful data for producting qualified virus-free original seed and saving cost.