红鳞蒲桃开花物候特性研究

Flowering phenology characteristics of Syzygium hancei

对红鳞蒲桃种群的花期物候,单株、单个花序、单花的开花动态进行系统的观测研究,详细测量并记录花部构件,同时调查红鳞蒲桃种群的同花期植物。结果表明:红鳞蒲桃种群的花期物候为8月1日～9月15日(2008年),持续时间46d;单株花期从23d到33d不等;单花序的花期情况较为复杂,总体表现为花朵数越多,该花序持续时间越长,但也有个别情况出现,在开花中期花序持续时间长,开花后期花序持续时间最短,开花前期花序持续时间介于两者之间;在整个种群花期内单花平均开花时间约5.2d,种群开花前期单花的持续时间约为6.7d,开花中期约为4.7d,末花期约为4.3d,种群开花前期单花的持续时间显著大于种群中后期的持续时间。红鳞蒲桃种群的同花期植物隶属于16科21属22种。

The flowering phenology, flowering dynamic of single plant, inflorescence and flowers of Syzygium hancei populations as well as components of single flower were observed. Simultaneously, the plants with same inflorescence in Syzygium hancei population were investigated. The results showed that flowering phenology of Syzygium bancei population lasted for 45 days, from August 1st, 2008 to September 9th, 2008; flowering of single plant ranged from 23 to 33 days. Flowering situation of single inflorescence was more complicated. Generally speaking, the more flowers there were, the longer inflorescence duration lasted. At early flowering stage, inflorescence lasted for a long time, and a short time at peak flowering stage, while inflorescence was secondary at the late flowering stage. For the population flowering,the average flowering stage of single flower was 5.2 days, single flower lasted for about 6.7 days at earlier stage, about 4.7 days at the intermediate stage, and about 4.3 days at the last stage. Therefore, the flowering duration of single flower at early stage of population flowering was longer than that at middle and late stages of population flowering. The plants with same flowering belonged to 22 species of 21 genera, 16 families.