聂功平 陈敏敏 杨柳燕 张永春 蔡友铭

摘  要：观赏百合耐涝性鉴定对引种驯化和抗性育种具有重要指导意义。本研究以16份亚洲百合和16份亚洲百合与麝香百合杂交系观赏百合品种为试材，采用“双套盆”法模拟淹水胁迫，确定观赏百合耐涝性鉴定的最佳时间及根、鳞茎、茎、叶表型涝害症状指标量化评价标准，并通过积分评价法和聚类分析法鉴定不同种系百合品种的耐涝性差异。结果，本文根据预实验确定耐涝性评价时间为淹水胁迫处理13 d;聚类分析将32份百合根据抗性强弱划分为耐涝型、中间型和敏感型，积分评价法从32份供试百合中鉴定出极端耐涝型品种为‘Nashville‘Brindisi，极端敏感型品种为‘Levi‘Fata Morgana;供试亚洲百合品种间耐涝性差异较大，亚洲百合与麝香百合杂交系普遍具有较强的耐涝性。分析耐涝型、中间型和敏感型百合涝害症状特征，初步建立百合耐涝性评价体系，为进一步鉴定其他品种百合耐涝性奠定基础。

关键词：观赏百合;耐涝性;表型性状;淹水胁迫;综合评价

Abstract： Identification of the tolerance of ornamental lily has important guiding significance for the introduction and domestication of ornamental lily and resistance breeding. In this study， 32 ornamental lily germplasm resources were used as the experimental materials， and the “double-pot” method was used to simulate the flooding stress. The identification time of the tolerance of ornamental lily was determined， and the symptoms of root， bulb， stem and leaf phenotype were established. Quantitative evaluation criteria were used to compare the tolerance of ornamental lily by the integration method and clustering method， and to evaluate the tolerance of lily of different species. As a result， according to the preliminary experiment， this paper determined that the waterlogging tolerance evaluation time was 13 days after flooding stress. Cluster analysis divided 32 lilies into waterlogging-tolerant， intermediate and sensitive types according to their resistance. The integral evaluation method identified the extreme waterlogging-tolerant varieties as ‘Nashville and ‘Brindisi， and extremely sensitive varieties are ‘Levi and 'Fata Morgana' from the 32 test lilies. The tested Asiatic lilies cultivars had large differences in waterlogging tolerance， and the hybrids of the Asiatic lily and the Longiflorum lily generally had strong waterlogging tolerance. The analysis of the waterlogging tolerance and establishment of an evaluation system for waterlogging tolerance of lilies would lay a foundation for further identifying waterlogging tolerance of other lilies.

Keywords： ornamental lily; waterlogging tolerance; phenotypic traits; waterlogging stress; comprehensive evaluation

百合（lilium spp.）属百合科百合属多年生草本鳞茎植物，兼具观赏、食用、和药用价值。观赏百合花大，花姿雅致，叶片青翠娟秀，茎干亭亭玉立，寓意百事合意，象征团圆、幸福纯洁，可用于庭院装饰、小型盆栽及切花等。但是百合在冷[1-2]、热[3-4]、干旱[5-6]、病毒[7-8]等逆境胁迫下抗性较弱的因素极大的限制了其推广应用，盲目引种不仅浪费人力、物力、财力，而且缺乏科学性。尤其在长江以南地区降水量大，容易产生洪涝等自然灾害，然而百合耐涝性相关研究目前尚未见报道，因此，开展百合耐涝性评价对抗性育种和引种驯化具有重要的指导意义。……