扁秆藨草生长与繁殖特性研究

Study on the Character of Growth and Propagation of Scirpus Planiculmis

扁秆 艹鹿灬 草以地下球茎越冬 ,第二年 3月下旬至 4月上旬球茎顶芽开始萌发形成地上植株。随着地上部分的生长 ,球茎逐渐发生一至数条根状茎 ,根状茎生长一定阶段其顶端膨大形成新的球茎。以后新的球茎又以同样的方式产生再生根状茎和再生球茎 ,使扁秆 草在短时间内迅速繁殖。球茎主要分布在 0～ 10cm土层中 。

The apical buds of scirpus planiculmis corms begin to grow and develop into ground organs from late March to early April after the corms live through the previous winter .Each corm produces one or several rhizomes during aerial growth period,and the rhizomes form new corms by means of ultimate swelling .The new corms form regeneration rhizomes and corms by the same way later.As a result, scirpus planiculmis could breed rapidly in short time .The corms are mainly distributed in 0～10cm soil layer ,and the new corms show the character of dormancy.