暗期光间断条件下新铁炮百合花芽分化的形态学研究  

Morphological observation on floral bud differentiation of Lilium formolongi under night-break condition

作　　者：刘伟[1] 刘久东[2,3] 周厚高[4] 

机构地区：[1]文山学院,云南文山663000 [2]云南大学,昆明650091 [3]江苏省仪征市农业委员会,江苏仪征211400 [4]仲恺农业工程学院,广州510225

出　　处：《广西植物》2012年第6期828-833,共6页Guihaia

基　　金：广东省科技计划项目(2008B020400008);广东省人大议案项目(粤财农[2006]459号);广东省农业厅科技项目~~

摘　　要：在暗期光间断条件下采用石蜡切片技术对新铁炮百合花芽分化过程进行了研究。结果表明:新铁炮百合品种花芽或顶芽分化过程可分为营养生长期、花原基或花序原基分化期、花被分化期、雌雄蕊分化期和花序形成期,而对于新铁炮百合品种花器官的发生过程而言只具有前4个时期,而无花序形成期;暗期光间断处理下80%新铁炮百合花序形成所跨度的时间为25d。研究结果可为新铁炮百合在生产上进行促花管理控制夜间光照天数提供有益参考。The floral bud differentiation of Lilium formolongi was studied with the method of paraffin section under nightbreak condition.The results were as follows：the process of floral or terminal bud differentiation could be divided into five phases：undifferentiation phase,flower or inflorescence primordium differentiation,petal differentiation,stamen and pistil differentiation and whole inflorescence formation.The process of floral development contained the first four phases,except the whole inflorescence formation phase.Moreover,based on the observation,the time of 80% inflorescence formation under night-break condition was 25d.This results could be availabe for promoting blossom of L.formolongi by controlling the illuminative date at night.

关 键 词：新铁炮百合 花芽分化 暗期光间断 形态解剖 

分 类 号：Q945[生物学—植物学]