湖北农业科学
湖北農業科學
호북농업과학
Hubei Agricultural Sciences
2015年
17期
4237-4239,4244
,共4页
姚振林%张万恒%刘贺贺%李军乔
姚振林%張萬恆%劉賀賀%李軍喬
요진림%장만항%류하하%리군교
蕨麻%开花进程%花外部形态结构
蕨痳%開花進程%花外部形態結構
궐마%개화진정%화외부형태결구
Potentilla anserina L.%flowering process%flower surface structure characteristic
对青海省蕨麻研究中心150盆人工种植的青藏高原蕨麻的开花动态进行定点观察,对蕨麻开花生长及花器解剖结构进行研究。结果表明,蕨麻单花花期为4~5 d,开花进程中,雄蕊向心聚合包围雌蕊,最后雄蕊群高于雌蕊群。花朵平均大小15.66 mm,旗瓣的长度和宽度分别为7.07 mm和5.62 mm,每朵花有20枚雄蕊,单体雄蕊,其高度为2.64 mm,雌蕊30枚,其高度(柱头+花柱+子房)为2.52 mm。花药着生方式为背着药,开裂方式为纵裂,花药对柱头的紧密包围,使雄、雌蕊的空间不分离。
對青海省蕨痳研究中心150盆人工種植的青藏高原蕨痳的開花動態進行定點觀察,對蕨痳開花生長及花器解剖結構進行研究。結果錶明,蕨痳單花花期為4~5 d,開花進程中,雄蕊嚮心聚閤包圍雌蕊,最後雄蕊群高于雌蕊群。花朵平均大小15.66 mm,旂瓣的長度和寬度分彆為7.07 mm和5.62 mm,每朵花有20枚雄蕊,單體雄蕊,其高度為2.64 mm,雌蕊30枚,其高度(柱頭+花柱+子房)為2.52 mm。花藥著生方式為揹著藥,開裂方式為縱裂,花藥對柱頭的緊密包圍,使雄、雌蕊的空間不分離。
대청해성궐마연구중심150분인공충식적청장고원궐마적개화동태진행정점관찰,대궐마개화생장급화기해부결구진행연구。결과표명,궐마단화화기위4~5 d,개화진정중,웅예향심취합포위자예,최후웅예군고우자예군。화타평균대소15.66 mm,기판적장도화관도분별위7.07 mm화5.62 mm,매타화유20매웅예,단체웅예,기고도위2.64 mm,자예30매,기고도(주두+화주+자방)위2.52 mm。화약착생방식위배착약,개렬방식위종렬,화약대주두적긴밀포위,사웅、자예적공간불분리。
There hasnˊt been any report about the flowering rule and flower anatomic structure of Potentilla anserina L. Therefore,the research of flowering process and flower anatomy of Potentilla anserina L helps to understand the growth and development process and the rule of sexual reproduction of Potentilla anserina L.It is also of great significance to the study of new species.The paper focuses on the study of the growth and development process and types of flower anatomic structure of the potted Potentilla anserina L in laboratory of Potentilla anserina L. research center of Qinghai-Tibet plasteau with the method of fixed-point observation of the flowering dynamics of 150 basins of Potentilla anserina L. in Qinghai region.The Single-flowered flowering is 4~5 days. During the process of flowering,the stamen drew close to the pistil centripetally and then gradually surrounded it,and finally the androecium was above the gynoecium.Average size of fiower is 15.66 mm.The length of banner is 7.07mm and the width of banner is 5.62 mm.Each flower has 20 stamens.The height of a monadelphous stamen is 2.64mm.Each flower has 20 pistils.The height (stigma+style+ovary)of a pistil is 2.52mm.The way of insertion of anther is dorsifixed anther.The fracture patterns is slit.