Dynamic of tillering behaved higher growth rate of tillering from ture green stage to N-n stage and lower growth rate of tilling after N-n stage.

• 旱秧返青至N-n叶龄期具有明显的分蘖优势，N一n叶龄期之后分蘖消长速度低于湿润秧，茎蘖动态表现出速发稳降的特征；