‘单花’梨花芽特性及其形态分化过程研究  

Study on Characteristics and Floral Bud Development of Flower Bud in ‘Danhua’ Pear

作　　者：武春昊 王强[2] 卢明艳[2] 闫兴凯[2] 刘明鹤 张茂君[2] WU Chunhao;WANG Qiang;LU Mingyan;YAN Xingkai;LIU Minghe;ZHANG Maojun(College of Horticulture,Jilin Agriculture University,Changchun,130118,China;Pomology Institute,Jilin Academy of Agriculture Sciences,Gongzhuling,Jilin 136100,China)

机构地区：[1]吉林农业大学园艺学院,长春130118 [2]吉林省农业科学院果树研究所,吉林公主岭136100

出　　处：《园艺学报》2019年第7期1373-1378,共6页Acta Horticulturae Sinica

基　　金：吉林省创新工程项目(CXGC2017TD006);国家现代农业产业技术体系建设专项资金项目(CARS-28-06)

摘　　要：‘单花’梨是从‘大香水’(Pyrus ussriensis Maxim.)梨单株中选出的具有单花、单果特性的芽变品种。以‘大香水’梨为对照,通过田间调查和显微观察对‘单花’梨花芽特征及花芽分化过程进行了研究。结果表明:与‘大香水’梨混合花芽不同,‘单花’梨花芽表现出不完全混合花芽和纯花芽两种类型;‘单花’梨花序单花出现在花芽分化初期,即花芽形态分化过程中只形成1个花原基,与‘大香水’梨形成多个花原基存在明显差异。The ‘Danhua’ pear is a bud mutation type with single flower and single fruit which was found in Daxiangshui pear(Pyrus ussriensis Maxim.). In this research,to understand the development process of the flower bud with single flower of Danhua pear,the characteristics and differential process of floral bud were studied through field investigation and microstructure observation,and Daxiangshui pear was used as control. The results showed that the Danhua pear had two types of flower buds,incomplete mixed bud and simple flower bud,which is different from Daxiangshui pear and other pear cultivars. The single-flower inflorescence of Danhua pear formed at the early stage of flower bud differentiation. Danhua pear developed only one flower primordium during morphological differentiation of floral bud,while Daxiangshui pear developed multi-flower primordium at the same stage.

关 键 词：梨 单花 纯花芽 花芽分化 花原基 

分 类 号：S661.2[农业科学—果树学]