【摘要】 调查和测定了种植在盐碱滩地的31份CIP马铃薯无性系的出苗率、株高、单株重、单株结薯数、淀粉含量及商品薯率等农艺性状,并进行了主成分分析和聚类分析,按累计贡献率≥85%选出前3个主成分,在此基础上对31份无性系进行了聚类分析,将其聚为3类,第1、2类包括23个无性系,其综合农艺性状较差,第3类包括8个无性系,不但农艺性状较好,且具有较强的耐盐碱性。更多还原

【Abstract】 The agronomic characters,such as emergence rate,plant height,tuber yield per plant,tuber number per plant,starch content and marketable tuber percentage of 31 CIP potato clones planted in alkaline land were analyzed, using the principal componet analysis and cluster analysis. Three principal components were chosen according to criteria of the cumulative pct. Of variable≥85%, the 31 cluster potato clones were cluster analyzed on the result of principal componet analysis, and these clones were divided into three clusters. The first and the second cluster included 23 clones which had relatively poor agronomic characters, and the third cluster included 8 clones which had not only fairly good agronomic characters but also salt tolerance.更多还原