<正>对筇竹生长发育规律进行了系统研究 ,结果表明 ,筇竹竹笋出土时间持续 60d左右 ,以4月上、中旬最为集中 ;竹笋—幼竹高生长时期为 5 0d左右 ,呈Logistic增长 ,且高生长的昼夜节律明显 ;地径生长期为 1 5d左右 ;温度是影响高生长的主要生态因子。

The growth and development rhythm of Qiongzhuea tumidinoda were studied.The main results were as follows:①the period of bamboo shoot coming up out of soil was about 60 d and the prosperous stage appeared from the beginning to the middle in April;②growth in height shown Logistic equation and went on about 50 d,the growth rhythm was obviously different between day and night; ③growth in base diameter lasts 15 d;④growth increment in height was affected mainly by temperature.