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.

地下茎由原茎和茎两部组成，其育可划为5个阶段：原茎化期、原茎膨大期、茎形成期、茎快速膨大期、茎充实期。