The culm-bleeding-intensity of the first and two nodes to top had close correlations with the growth and development of ratooning buds, the correlative coefficients during the milky stage and mature stage were 0.78 and 0.67 respectively.

• 茎倒1、2节位伤流量与再生芽发育显著相关，乳熟期和成熟期相关系数分别为0.；78(上标**)和0