作 者：
赵婉琪;吴正春;肖姣;国春策;杨光耀;于芬
摘 要：
[目的]探讨笔竹(Pseudosasa viridula)开花生物学特性。[方法]通过野外实地观测和解剖观察研究笔竹的开花林相、开花动态、花器官构造、结实情况等开花生物学特性。[结果]笔竹为连续开花型竹种,花期为1—5月,盛花期为3月初至4月中旬,开花类型复杂多样,主要分为老竹开花型、新竹开花型、不开花型3种类型;自然条件下结实率极低,仅为0.12%,花后竹林更新主要通过无性繁殖。花序由3～4枚小穗组成,每枚小穗上具小花8～10朵,小花含1枚外稃、1枚内稃、3枚浆片,雄蕊多数为3枚,极少数为6枚,1枚雌蕊,柱头3裂,羽毛状;整个花序的开花顺序为自上而下,各小穗上小花的开花顺序为自下而上,为混合花序;雌雄同熟,果实为颖果。[结论]本研究为竹类植物的杂交育种工作提供了参考。
译 名：
Flowering Biological Characteristics of Pseudosasa viridula
作 者：
ZHAO Wan-qi;WU Zheng-chun;XIAO Jiao;GUO Chun-ce;YANG Guang-yao;YU Fen;School of Forestry, Jiangxi Agricultural University, Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization;
关键词：
Pseudosasa viridula;;flowering;;biological characteristics;;forest form
摘 要：
[Objective] To explore the flowering biological characteristics of Pseudosasa viridula S. L. Chen et G. Y.Sheng. [Method] Field observation and optical anatomy were used to study the flowering biological characteristics of flowering forest facies, flowering dynamics, flower organ structure, fruiting condition and so on. [Result]Pseudosasa viridula is a kind of continuous flowering bamboo species, and its flowering period is from January to May of each year, and the period of full bloom is from March 1 to April 15. The types of flowering are complex and diverse, which are mainly divided into three types: old bamboo flowering type, new bamboo flowering type and nonflowering type. Under natural conditions, the fruiting rate is very low, only 0.12%, and the regeneration of postflower bamboo forest conducts mainly through asexual reproduction. The whole inflorescence consists of 3 or 4 spikelets, with 8-10 florets on each spikelet. Each floret contains 1 lemma, 1 palea, 3 lodicules, stamens mostly 3(very few are 6), 1 pistil and 3 plumose stigmas. The flowering order of the whole inflorescence is top-down, while the flowering order of florets on the same spikelet was bottom-up, so the inflorescence of Pseudosasa viridula belongs to the mixed inflorescence. The floret is monochogamy and the fruit is caryopsis. [Conclusion] This study provides a theoretical reference for sexual breeding and cross breeding of bamboo, as well as a certain basis for the study of low seed setting rate and cross breeding of Pseudosasa viridula.
