菊花及其近缘种属植物耐涝评价体系建立及耐涝性鉴定  

Establishment of Evaluation System for Waterlogging Tolerance and Identification of Waterlogging Tolerance in Chrysanthemum morifolium and Its Related Genera Plants

作　　者：尹冬梅[1] 管志勇[1] 陈素梅[1] 陈发棣[1] 

机构地区：[1]南京农业大学园艺学院,南京210095

出　　处：《植物遗传资源学报》2009年第3期399-404,共6页Journal of Plant Genetic Resources

基　　金：教育部新世纪优秀人才支持计划(NCET-06-0489);国家科技支撑计划(2006BAD01A18);上海市农委重点攻关[沪农科攻字(2006)第4-3号]

摘　　要：为发掘耐涝种质资源,建立了菊花近缘种属植物苗期耐涝性评价体系。根据盆栽淹水处理过程菊花近缘种属植物表型变化,将涝害指数划分为7级;采用叶色、叶形态、茎色、茎形态4个外观形态指标,并将其定量分级,制定等级得分标准及评价方案,然后以各指标得分的总和对耐涝性进行综合评价,建立评价体系。对57个菊花近缘种属植物进行了苗期耐涝性鉴定,结果表明,耐涝性鉴定时间以淹水6d为宜;菊花近缘种属植物对水涝较为敏感,大部分材料属于较不耐涝级,同种不同种源存在耐涝性差异;初步筛选出8份耐涝性强的菊花优异种质。In order to discover the waterlogging tolerant germplasm in Chrysanthemum, an evaluation system for waterlogging-tolerance of Chrysanthemum was established, Pot plants were exposed to mimicked waterlogging treatment. In terms of the morphological changes under the waterlogging treatment, the level of waterlogging damage was classified into 7 grades. Four morphological criteria, i.e. leaf color, leaf morphology, stem color and stem morphology, were quantified via grading and scoring. The waterlogging tolerance was identified by the comprehensive scores of the four criteria, then the evaluation system was established. And the waterlogging tolerance was identified in 57 taxa of Chrysanthemum and its related genera as well. The results showed that the 6^th day after submergence （waterlogging） was critical day to identify the waterlogging tolerance. The most of the related genera of Chrysanthemum are more susceptible to waterlogging, which belongs to less tolerant class. Different tolerance to waterlogging was observed in different populations of the same taxa. Eight materials showing highly waterlogging tolerance were screened out.

关 键 词：菊花近缘种属植物 耐涝性 形态指标 评价体系 

分 类 号：S682.11[农业科学—观赏园艺]