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应用从湛江引入,并在浙江自然越冬后生长正常的,以及从海口新引入的细基江蓠繁枝变种,作为实验材料进行越冬保种研究。本文首次报道了不同的种藻密度、培养液比重、水层、光强、底质及人为低温处理,对存活和生长的影响。结果表明:新引入的种藻具生长快、对环境的剧烈变化敏感;已越冬的种藻更能适应低温低比重的条件。以0.3m左右的水层,比重1.010,避免直射强光的低光照,能够安全保种越冬。低温干冻比水冻更易致死。可以经受7天的0℃低温。砂质的底质有利于越冬保种。在浙江普通的育苗室内就可以进行越冬,越冬后,死亡率低于0.07％/d。
The application was introduced from Zhanjiang and grew normally after the winter in Zhejiang Province, and the new stems and shoots varieties introduced from Haikou were used as the experimental materials for overwintering conservation. This paper reports for the first time the effects of different density of algae, specific gravity of culture medium, water layer, light intensity, sediment and artificial low temperature treatment on survival and growth. The results showed that newly introduced algae grew fast and were sensitive to the drastic changes of environment. Algae that had been overwintered were more suitable for low temperature and low specific gravity. To about 0.3m of water layer, the proportion of 1.010, to avoid direct sunlight low light, to protect the security of winter. Drying at low temperatures is more lethal than freezing. Can withstand 7 days of 0 ℃ low temperature. Sandy sediment is conducive to overwintering conservation. In Zhejiang ordinary nursery room can be overwintering, after the winter, the mortality rate is less than 0.07% / d.