为了提高水杉扦插成活率,1973年我们采取温床催根试验,取得了初步效果,现将试验情况小结如下。一、试验方法 (1)种条选择和处理扦插用的种条系一、二年生扦插苗截干条,按粗度分级,剪成长14—16厘米,上平下斜的插穗后,于元月30日用50p.p.m的萘乙酸处理22小时。元月31日起置于湿砂内埋藏,以待催根。 In order to improve the survival rate of Metasequoia cuttage, in 1973 we take the hotbed of a root-inducing test, and achieved initial results, the test is summarized as follows. First, the test method (1) species selection and processing of cutting with the species of the first and second year cuttings cuttings, grading according to the roughness, cut grow 14-16 cm, the next ramp down the cuttings, in January On the 30th with 50p.pm of naphthalene acetic acid for 22 hours. January 31 placed in the wet sand buried, pending reminders.