绿豆抗旱指标鉴选与评价

摘要

This study aims to evaluate drought resistance and select its indexes of 21 mung bean cultivars .Ten in-dexes related to drought resistance were divided into three main components according to principal component analysis , including stem length ,stem diameter ,pods ,leaf area ,chlorophyll content ,MDA content ,proline content ,and shoot fresh weight ,dry weight and water content .The results indicated that stem length ,stem diameter ,pods ,leaf area , chlorophyll content ,MDA content ,and proline content were closely related to drought resistance .The mung bean culti-vars were classified into three groups according to cluster analysis and subject function method .Liangfeng 1 ,HX04037 , and Yulü 1 showed strong drought resistance ,Jibei12-1 ,Lüzhenzhu 2 ,‘ZKY-2 ,Bailü 522 ,and Hanlü weak resis-tance ,and the others medium .%采用人工盆栽控水试验，对21份绿豆种质资源进行抗旱期综合评价，鉴选绿豆品种抗旱性指标体系。结果表明，与绿豆抗旱性相关的10个指标经主成分分析被分为3个主成分，其中茎高、茎粗、结荚数、叶面积、叶绿素含量、丙二醛含量、脯氨酸含量与绿豆抗旱性密切相关。采用聚类分析，并结合绿豆隶属函数法综合分析，将21份绿豆品种分成：强抗旱品种为‘良丰1号’、‘HX04037’和‘榆绿1号’，中抗旱性品种为‘嫩绿1号’、‘兴绿1号’、‘天山大明绿’、‘西绿1号’、‘绿宝绿豆’、‘赤绿3号’、‘白绿1号’、‘中绿1号’、‘晋绿1号’、‘八宝绿豆’、‘中绿6号’、‘鑫绿1号’和‘HX04050’，弱抗旱性品种为‘冀北12－1号’、‘绿珍珠2号’、‘ZKY－2’、‘白绿522’和‘邯绿8号’。