薄皮甜瓜花芽分化的形态解剖学研究  

Morphology and Anatomy of Flower Bud Differentiation in Melon

作　　者：郝敬虹[1] 齐红岩[1] 阎妮[1] 

机构地区：[1]沈阳农业大学园艺学院辽宁省设施园艺重点实验室,沈阳110161

出　　处：《沈阳农业大学学报》2007年第4期602-604,共3页Journal of Shenyang Agricultural University

基　　金：辽宁省自然科学基金(20062112)

摘　　要：以薄皮甜瓜(Cucumis melo L.)"玉美人"为试材,采用石蜡切片方法对薄皮甜瓜最初花芽分化过程进行形态学观察。结果表明:子叶展开期在第1真叶叶腋处出现花原基,依次分化出花萼原基、花冠裂片原基、雄蕊原基和雌蕊原基。花芽分化进程较快,整个发育期约30d。同一节位叶腋处可形成一个或多个花原基,但同一节位叶腋处的花原基并不是同时分化的,第1个花原基分化完成后,第2个和第3个花原基才依次分化。The process of flower bud differentiation and the morphological observation were studied in melon Yumeiren by means of paraffin-cut section.The results showed that the floral primordial was observed at the first leaf axils in the period of spreading cotyledon, then sepal primordial, corolla lobe primordial, stamen primordial and pistil primordial differentiated in turn, respectively. The process of flower bud differentiation was fast, and the whole stage of development was about 25 days. Moreover, one or more flower primordials were observed in the same axillae during different periods of the differentiation; however, flower primordials in the same axillae were not differentiated at the same time. After the first floral primordial finished the differentiation, the next floral primordial started to differentiate in turn.

关 键 词：薄皮甜瓜 石蜡切片 花芽分化 形态学 花原基 

分 类 号：S652[农业科学—果树学]