石梓种子的发芽试验

石梓(Gmelina arborea)种子特性与柚木相似,过去曾做过试验,在室内发芽皿中不发芽,一般贮藏方法,一年内即失去发芽力。有些生产单位播种覆土盖草,种子容易霉烂,低温季节播种,种子发芽困难。针对上述问题,我们进行了种子贮藏和催芽方法的探讨,取得了一定的效果。

GERMINATION TEST ON SEED OF GMELINA ARBOREA

Through years of examination, the quality index of better seed of Gmelina arborea is. thousand-seed weight 500-800g,moisture content 10-11 %, germination percent 15-34 % in laboratory and 80-90 % in nursery, germination power 60-70 %, seedling survival percent over 90 %. The germination percent is 87.4 % after storing in desiccator for twelve months (83.8 % before storage). To store the seeds with wet sand in an incubator and keep the temperature at 38-40ccccccccccccccc for four or six days, the germination percent reaches 53 %. The best way for hastening germination is the treatment of soaking and drying repeatedly or soaking seed in lime-water for seven days, the germination percent is 81.0%,84.0%, the germination power is 65.5%, 61.0% and the seedling survival percent is 97.2% and 92.8% respectively.