Observation on the biological characteristics and conducting manual pollination to the bamboos of Dendrocalamus.latiflorus Munro, Dendrocalamopsis oldhami (Munro) Keng f., D. beecheyana var. pubescens (P.P. Li) Keng f., D. vario-striata (W.T.Lin) Keng f. and Bambusa pervariabilis McClure, seeds were obtained and planted for seedling investigation. The results show that sympodial bamboos have a regular flowering time, female and male flowers at a different time in Dendrocalamus, and the florescence is long a...