| 摘要 |
<p>PURPOSE:To obtain an additive for plant culture, consisting of low molecular chitin or chitosans and effective in promoting redifferentiation, germination, rooting and acclimation and efficiently strengthening seed and seedling by adding to a culture medium for callus culture or shoot apex culture. CONSTITUTION:A low molecular chitin or chitosans having 300-150000, preferably 300-3000 molecular weight is added to culture medium for dedifferentiation, medium for redifferentiation, medium for germination and rooting and soil for potting in callus culture and medium for germination and rotting, soil for germination and potting in shoot apex culture at an amount of 50-50000ppm, especially 100-500ppm to promote redifferentiation to adventitious embryo of a plant callus, germination and rooting of adventitious embryo thereof and germination and rooting of shoot apex and acclimation of seed and seedling.</p> |
