摘要
Abstract
The flowering characteristics of Phyllostachys heteroclada Oliver were studied in this paper.The result showed that the occurrence of bamboo flowering is random in a year,while the florescence mainly happens in the period of November to next May,which led to the death of bamboos.Infloterence is represented as spike,each spathe possesses 5～7 fake spikelets and each spikelet possesses 4～6 florets;the flower filament is about 13 mm long with canary anther and trifid stigma.Anther is relatively rich,but pistil shows hypogenesis,so Phyllostachys heteroclada Oliver up to now fail to seed.The further research showed that environment factors,such as time of sun illumination,temperature and humidity of bamboo forest,had the significant impact on bamboo flowering.and the anatomy of flowering and non-flowering bamboo leaf,stem and root showed that the cell structure and development status of flowering bamboo leaf,stem and root are inferior to those of non-flowering bamboo.In present study,we suggested that the interior physical change and external environment condition contributed side to the occurrence of Ph.heteroclada Oliver flowering.关键词
开花特性/水竹/刚竹属/雅安Key words
Phyllostachys heteroclada/flowering characteristics,Phyllostachys,Ya'an分类
农业科技
