文心兰南茜种花发育进程与分期  

Developmental Stages of Oncidium Gower Ramsey Flower

作　　者：石乐松 孙慧[1] 田晓岩[1] 吴繁花[1] 蔡秀清[1] 庄玉粉 刘进平[1] SHI Lesong SUN Hui TIAN Xiaoyan WU Fanhua CAI Xiuqing ZHUANG Yufen LIU Jinping(Ministry of Education Key Laboratory of Protection, Development and Utilization of Tropical Crop Germplasm Resources, Hainan University , College of Agronomy, Hainan University, Haikou, Hainan Province, 57022)

机构地区：[1]海南大学海南省热带生物资源可持续利用重点实验室/农学院,海口570228

出　　处：《热带生物学报》2016年第4期440-443,449,共5页Journal of Tropical Biology

基　　金：国家自然科学基金项目(31560573);2015年度海南省普通高等学校研究生创新科研课题(Hys2015-02)

摘　　要：根据花的各部分形态特征变化,对文心兰南茜种（Oncidium Gower Ramsey）‘黄金2号’花发育进程进行了观测。在此基础上,对文心兰南茜种花发育及衰老过程中花的形态大小及生长时间和质量（鲜质量和干质量）进行了测定。文心兰南茜种花发育进程可分为花苞期、绽口期、半开放期、盛开前期、盛开期、衰老初期、衰老期和脱落干枯期8个阶段。文心兰南茜种切花从花苞期到脱落干枯期,时间约16~29 d,其中最佳观赏期（从半开期至始衰期持续的天数）为4~8 d。文心兰南茜种切花发育过程中,各部位鲜干质量均呈现在盛开期之前增加、之后下降的趋势。Flowers of Oncidium Gower Ramsey ‘Gold No. 2＇were observed to identify their developmental stages according to the morphological changes in different parts of a flower. and their changes in morphology,size,duration and weight（ fresh weight and dry weight） at each developmental stage were determined. The flower development of Oncidium Gower Ramsey was divided into eight stages： bud stage,bud burst stage,half-opened stage,pre-blooming stage,blooming stage,initial stage of senescence,senescence stage,and withered and abscised stage. The vase life for flower development from the bud stage to the withered and abscised stage was about 16-9 days,and the duration of optimal vase life（ from the half-opened stage to initial stage of senescence）for viewing was 4-8 days. In the development process of Oncidium Gower Ramsey cut flower,fresh and dry weight of each part of the cut flower tended to increase before and decline after the blooming stage.

关 键 词：文心兰南茜种 花发育 花衰老 发育阶段 

分 类 号：S682.31[农业科学—观赏园艺]