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 38-40℃ 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.