经测定,Larreatridentata种子净度为97.4%,去除种皮能促进种子迅速、整齐地发芽。在砂床、纸床、蛭石床3种发芽基质上种子的发芽率无显著差异,但在砂床和蛭石床上的发芽速度比在纸床上快。在恒温(25℃)和变温(20～30℃)两种温度条件下进行发芽比较,结果显示:在恒温25℃时发芽率高,发芽速度快且整齐,可见25℃较适宜L.tridentata种子发芽。种子萌发时大约前9h为吸水期,且前4h吸水速度最快,吸水量是自身质量的1倍左右。 Larreatridentata seed purity was determined to be 97.4%, the removal of seed coat can promote rapid and neat germination of seeds. There was no significant difference in seed germination rate between the three germination substrates of sand bed, paper bed and vermiculite bed, but the speed of germination in bed of sand bed and vermiculite was faster than that on paper bed. Compared germination under constant temperature (25 ℃) and variable temperature (20 ~ 30 ℃), the results showed that the germination rate was 25 ℃, germination rate was fast and neat. It showed that L.tridentata seed germination. Seed germination about 9h before the water absorption period, and the first 4h fastest water absorption, water absorption is about 1 times its own quality.