【作者】 黄丹； 刘东超；

【Author】 HUANG Dan;LIU Dongchao;Fisheries College of GuangDong Ocean University;Engineering Technology Research Center for Algae Breeding and Application of GuangDong Province;

【机构】 广东海洋大学水产学院； 广东省藻类养殖及应用工程技术中心；

【摘要】 研究了两种不同光质（蓝红光（5:1）、白光）下添加不同浓度的NaHCO₃对长茎葡萄蕨藻生长和光合色素的影响。经多因素方差分析,结果表明:添加NaHCO₃对藻的生长和光合色素产生显著影响（p<0.05）,改变光质对二者影响不显著（p>0.05）,但添加NaHCO₃与改变光质的交互作用对二者有显著影响（p<0.05）;添加NaHCO₃可能比改变光质更能促进藻生长。单因素方差分析得出,在白光、蓝红光下NaHCO₃添加浓度分别为6mmol/L、4mmol/L时藻的生长和光合色素含量最大（p<0.05）;且在两种光质下藻的生长和光合色素含量都随NaHCO₃添加浓度的增加呈现先上升后下降的趋势;可见适当补充NaHCO₃有利于长茎葡萄蕨藻生长。研究结果可为将NaHCO₃添加运用到长茎葡萄蕨藻规模化养殖提供理论基础。更多还原

【Abstract】 This paper has explored the effects of different concentrations of NaHCO₃ addition on the growth and photosynthetic pigment contents of Caulerpa lentillifera under two different light quality（blue/red light（5:1）, white light）. After Multi-way ANOVA, results show that NaHCO₃ addition had significant effects on the growth and photosynthetic pigment contents of algae（p<0.05）, altering light quality had no significant effect on them（p>0.05）, but the interaction between NaHCO₃ addition and altering light quality had a significant effect on them（p < 0.05）. Adding NaHCO₃ may promote algal growth more than altering light quality. Results of One-Way ANOVA show that the growth and photosynthetic pigment contents of algae were the highest（p<0.05） when the concentration of NaHCO₃ was 6 mmol/L under white light and 4 mmol/L under blue/red light（5:1）. Growth and photosynthetic pigment contents of algae under both light qualities presented a trend that increasing first and then decreasing with the increasing of NaHCO₃ concentration. It can be seen that appropriate NaHCO₃ addition promotes the growth of C· lentillifera. Results can provide a theoretical basis for applying NaHCO₃ addition to large-scale cultivation of C· lentillifera.更多还原