Growth and Development of Staminate Inflorescence and Anatomic Observation of Male Chestnut Flower  

板栗雄花序生长发育规律及雄花结构解剖观察（英文）

作　　者：陈娟[1,2] 聂玉婷 刘津[1] 姚红艳[1] 程水源[1] 

机构地区：[1]黄冈师范学院生命科学学院/经济林木种质改良与资源综合利用湖北省重点实验室/大别山特色资源开发湖北省协同创新中心,湖北黄冈438000 [2]扬州大学生物学博士后流动站,江苏扬州225009

出　　处：《Agricultural Science & Technology》2015年第6期1301-1305,共5页农业科学与技术（英文版）

基　　金：Supported by the Major Project of the Natural Science Foundation of Hubei Province(2010CBB03901);the Key Project of the Industry-University-Research Cooperation Program of the Education Department of Hubei Province(C2010060);the Demonstration Project of the Forestry Scientific and Technical Extension of the Central Finance in 2011(2011BH0032);the Open Fund Project of the Key Laboratory of Economic Forest Germplasm Improvement Resources Comprehensive Utilization of Hubei Province(2013000503);the Industry-University-Research Cooperation Program of Huanggang Normal University(2012025703);the Postdoctoral Fund of Jiangsu Province(1402115C)~~

摘　　要：The growth and development of staminate inflorescence and anatomic structure of male chestnut flower were observed. Results showed that staminate in-florescence on the base of branch formed first, then upward successively. About 50 days were needed from the formation of staminate inflorescence on the base of branch to ful y develop the staminate inflorescence on the top of the branch. On the same staminate inflorescence, male flower clusters of the base formed first, then upward successively. About 20 days were needed from the formation of stami-nate inflorescence on the base of the male flower cluster to ful y develop the stami-nate inflorescence on the top of the branch. 5-7 male flowers forming a cluster, the flower number in a cluster was odd number usual y, and there was one on the top and each two paral el y arranged downward. The flower on the top came into bloom first, and then downward successively. The flowers paral el y arranged came into bloom at the same time. Sporangium of male flower of chestnut was monolocular. There were a large number of pol en grains in the sporangium. There were large differences between the development process of different sporangium in one male flower. Chestnut had larger quantity of male flowers and pol en and long period of pol ination compared with female flower. It is remained to be further studied whether it was necessary for anemophilous pol ination.通过对板栗（Castanea mollissima Blume）雄花序的生长发育规律和雄花解剖结构观察，结果表明，同一枝条上基部雄花序首先形成，依次向上进行，同一枝条上从基部雄花序开始生长至最顶部一个雄花序发育完全需要50 d左右；同一个雄花序上，基部雄花簇首先开放，依次向上进行，而从基部雄花序开始开花至顶部雄花序完全开花需要20 d左右；一个雄花簇有雄花5～7朵，一般为单数，顶部一朵，下方四朵为两朵并列排列，同一雄花簇中最顶部一朵雄花最先开放，依次向下进行，并列排列的两朵同时开花；板栗雄花小孢子囊数量多，且发育进程有较大差异，表现为无限分化的趋势，小孢子囊两室，偶而有四室出现，内含大量花粉粒。总之，板栗雄花多，花粉数量大，开花散粉时间长，对于相对数量较少的雌花而言，是否为适应风媒传粉所需，有待进一步研究。

关 键 词：Staminate inflorescence Male flower Anatomic structure Microsporangium 

分 类 号：S664.2[农业科学—果树学]