摘要
[目的]探究荷兰鸢尾自然变异株系与野生株系的可区别性状的关键评判指标.[方法]根据球根鸢尾DUS测试指南,对野生型春之梦的 4个变异株系MHS5-3、XCQ5-1、MZB7-2、CZL7-3的农艺性状进行测定,比较分析它们的观赏性状间的差异.[结果]自然变异株系与野生型在株型、花期以及生育期等性状没有明显差异;在供测的 40个主要性状中,7个假质量性状,如花蕾、旗瓣、花丝、花柱、羽冠、垂瓣上下表面等部位的颜色的表达状态,在不同变异株系中与野生型相比均存在明显差异,具备可区别性;另外 33个性状则无明显差异.[结论]花色是区别自然变异株系与野生型株系的一个重要性状,其中黄色、蓝色相对紫色、白色具有更强的变异潜力,可为荷兰鸢尾开展新品种选育以及种质创新利用提供思路和参考依据.
Abstract
[Objective]Indicators for distinguishing differentiate physiological traits of naturally occurring variants of Iris hollandica were determined.[Methods]According to the DUS testing guidelines on bulbous irises,botanical and agronomic traits of 4 wild-type variants of Chunzhimeng,namely MHS5-3,XCQ5-1,MZB7-2,and CZL7-3,were examined.Major ornamental characteristics of the plants were analyzed for the indicator selection.[Results]The morphological,flowering,and growth characteristics of these variants were not significantly deviate from those of the wild-type plants.On the other hand,among the 40 investigated traits,7 pseudo-qualitative characteristics,including colors of bud,flag pedal,filigree,style,feathercrown,and upper and lower pendant petals,groud color of upper side of blade in outer tepal,color of Inner tepal,filament color,color of upper side in bridge,color of upper side in crest,and groud color of upper side of claw in outer tepal,significantly differed between the wild-type the variants.These traits showed a potential of being used as criteria for differentiating between the two,while the remaining 33 traits were phenotypically similar.[Conclusion]Being an apparent property of an ornamental flowering plant,red and blue,in particular,appeared superior to purple and white I.hollandica flower color for separating variants from the wild-type counterparts.
基金项目
福建省科技计划公益类专项(2023R1029001)
福建省农业科学院科技创新团队建设项目(CXTD2021010-2)
维普
万方数据