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用现行的海带夏苗培育法,自采孢子到培育成1—3公分的幼苗,约70天就够了。因当时海面水温尚未降到19℃以下,不适于幼苗生长,不能出库下海,必须在育苗库中再“多培育”一段时间。在我国,愈是南方,其“多培育期”愈长,例如在福建省就要“多培育”120天。而现行育苗库中的培育条件又不能满足幼苗在“多培育期”继续健康旺盛地大量生长,所以采孢子后,用较弱光强,较低温度等方法抑制生长,以防止幼苗生长过速过大。达样不仅成本高,管理麻烦,甚至导致幼苗罹病腐烂,脱苗烂苗。
With the current kelp summer cultivation method, since the spore to cultivate into 1-3 cm seedlings, about 70 days is enough. Due to the sea surface water temperature has not yet dropped below 19 ℃, not suitable for seedling growth, can not be out of the sea, you must nurture more “nurturing” for some time. In our country, the more the South, the “more incubation period” longer, for example, in Fujian Province will have to “nurture” 120 days. However, the cultivation conditions in the current seedling nursery can not meet the requirement of growing vigorously and vigorously in the “multi-cultivation period”. Therefore, after the spores are collected, the growth is restrained by means of weaker light intensity and lower temperature so as to prevent the seedling from growing too fast is too big. Not only the high cost of the sample, the management of trouble, and even lead to seedlings rot disease, seedlings off rotten seedlings.