plena

The grow progress of bulb is divided to 5 stages: probulb idiophase, probulb enlargement stage, primarybulb idiophase, bulb weight fast gain stage and bulb plenum stage.

地下鳞茎由生鳞茎和侧生鳞茎两部组成，其生可划为5个：生鳞茎化期、生鳞茎膨大期、侧生鳞茎形成期、鳞茎快速膨大期、鳞茎充实期。