半干旱区马铃薯品种抗病性和产量田间试验

Field Test for Disease Resistance and Yield of Potato Varieties in Semi-arid Area

为加快抗病性新品种更新换代步伐,通过对引进的5个马铃薯品种及当地对照品种‘新大坪’进行生物学特性、适应性、抗病性和丰产性等综合农艺性状的比较试验,筛选适宜安定区种植的马铃薯抗病新品种。结果表明,‘青薯9号’对马铃薯早疫病及晚疫病的抗病性均表现最好,田间长势表现好,且产量最高(31 432 kg/hm2),适宜在半干旱区大面积推广种植。

To speed up the pace of replacement of potato varieties with new ones, five introduced varieties and a local variety ＇Xingdaping＇ were compared for their biological characteristics, adaptation, diseased resistance, yield and other agronomic traits and new disease resistant vadety was selected, which might be suitable for planting in Anding District. The results indicated that ＇Qingshu 9＇ showed high plant vigor, the best resistance to both eady and late blight, and the highest yield （31 432 kg/ha）, therefore, suitable for planting on a large scale in semi-arid area.