冬季土壤自然封冻始期4个品种芍药的花芽发育状态  

Floral Bud Differentiation Stage of 4 Peony Cultivars in the Initial Period of Soil Naturally Frozen in Winter

作　　者：艾云苾 刘爱青 韩婧[1] 吴婷[1] 孙晓梅[1] 刘燕[1] 

机构地区：[1]北京林业大学园林学院,花卉种质创新与分子育种北京市重点实验室,国家花卉工程技术研究中心,城乡生态环境北京实验室,北京100083 [2]山东省菏泽市曹州牡丹园管理处,山东菏泽274400

出　　处：《西北林学院学报》2016年第3期119-123,130,共6页Journal of Northwest Forestry University

基　　金：国家“十二五”科技支撑计划课题(2011BAD12B02-01)

摘　　要：为明确自然生长条件下芍药花芽感应低温的始期,以大田地栽的不同花型、不同花期4个品种芍药为研究对象,连续2a观察其在北京地区冬季土壤自然封冻始期花芽所处的发育状态,对比其在山东菏泽地区1a的分化状态,探讨不同品种可接受低温时花芽分化状态的规律性,为芍药生产栽培提供参考。结果表明,冬季土壤自然封冻始期芍药花芽发育状态与翌年花期相关,花芽分化程度越高,花期越早;与花型间无明显联系;芍药花芽处于雌蕊原基分化期时可感应低温,花期较晚的品种花芽处于雄蕊原基分化期时亦可感应低温。To clarify floral bud differentiation stage in the initial period of soil naturally frozen in winter,4field peony cultivars in different flower types and different flowering time were observed for their development states during the initial stage of soil naturally frozen.The experiments were conduct in Beijing for two consecutive years（2013-2014）,and then the results were contrasted with the floral bud differentiation state observed in Heze for one year（2014）,expecting to figure out the suitable floral bud differentiation acceptable to the chilling treatment in Paeonialactiflorato provide guidance for the production and cultivation of herbaceous peony.The results showed that the floral bud conditions in the initial stage of soil naturally frozen were associated with flowering date of the next year;the early-flowering cultivars had the higher flower bud differentiation.No obvious correlation was observed among the cultivars with different flower types.All peony cultivars could be acceptable to the chilling treatment when in the formation of pistil primordia,late-flowering cultivars could also be acceptable to the chilling treatment when in the formation of stamen primordia.

关 键 词：芍药 花芽发育状态 自然入冬 感应低温 

分 类 号：S718.43[农业科学—林学]