落羽杉具有许多优良特性,我国引种已有50多年历史,各地都较重视,在我省亦被列为湖区和丘陵区大力发展的主要用材树种之一。1954年,我所从广西引种了几株落羽杉,现保存4株母树。为了解决落羽杉的种苗不足问题,我所在进行扦插繁殖的同时,连续3年搞了播种育苗,但发芽率一直不高。1975年冬采种时,由于母树高大,树梢的球果未采尽,到1976年3月我们才将树上残存的球果摇落下来,而后将拾得的种鳞(球果掉下即散成鳞片)凉干进行播种。调查表明,因采种期的不同,种子发芽率有着很大的差异(见表1)。 Taxodium distichum has many excellent features, our country has introduced more than 50 years of history, all over the world are more important in our province has also been listed as the lake and hilly areas to develop one of the main timber species. In 1954, I introduced several Taxodiums from Guangxi, and now I have 4 mother trees. In order to solve the problem of lack of seedlings of Taxodium distichum, I conducted cutting propagation at the same time, engage in sowing seedlings for three consecutive years, but the germination rate has not been high. When the winter of 1975 was planted, because of the tall trees, the coniferous trees did not pass, and in March 1976 we did not shake off the remaining coniferous trees, and then we picked up the scales Into scales) dry to sow. The survey shows that due to the different seed storage period, seed germination rate is very different (see Table 1).