Seedling height, stem thick, number of leaves, number of roots, and length of roots were studied by means of double-factor complete random design.

对不同品种脱毒试管苗的苗高、茎粗、叶片数、根数、根长等植物学性状采用二因素完全随机试验设计。

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The results showed that, for all treatment, the seedling emergence rate and the stem length of ridge cultivation model was the highest and its mature date was the earliest.

结果表明，以垄栽覆盖地膜方式马铃薯的出苗率最高，成熟期最早，植株最高，分枝数最多；但茎粗、叶面积指数、匍匐茎长、产量和单株生物学产量则以浅旋耕覆盖稻草方式最高；

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