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.

地下鳞由原生鳞生鳞两部组成，其生长发育可划为5个阶段：原生鳞化、原生鳞、生鳞形成、鳞快速、鳞充实。