| 不同氮、磷浓度及配比对铜藻(Sargassum horneri)幼苗生长的影响 |
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| 引用本文： | 李慧,丁刚,辛美丽,刘玮,马增岭,李大鹏,郭文.不同氮、磷浓度及配比对铜藻(Sargassum horneri)幼苗生长的影响[J].海洋与湖沼,2017,48(2):368-372. |
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| 作者姓名： | 李慧 丁刚 辛美丽 刘玮 马增岭 李大鹏 郭文 |
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| 作者单位： | 温州大学生命与环境科学学院 温州 325035,山东省海洋生物研究院 青岛 266104,山东省海洋生物研究院 青岛 266104,山东省海洋生物研究院 青岛 266104,温州大学生命与环境科学学院 温州 325035,山东省海洋生物研究院 青岛 266104,山东省海洋生物研究院 青岛 266104 |
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| 基金项目： | 国家海洋公益性行业科研专项资助，201505022-2号；山东省现代农业技术体系建设专项资金资助项目，SDAIT-26号。 |
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| 摘 要： | 采用铜藻(Sargassum horneri)幼苗为实验对象,分别以Na NO3和Na H2PO4为氮源和磷源,研究了不同氮磷质量浓度及氮磷配比对铜藻幼苗生长的影响。进行了氮、磷单因子实验、双因子实验以及不同氮磷配比实验,实验时间为8d。结果表明:氮和磷对铜藻幼苗生长影响极显著(P0.01),且当氮、磷的质量浓度分别为8mg/L、0.4mg/L时,铜藻幼苗的特定生长率最大;交互作用影响不显著(P0.05),不同质量浓度的氮为主效应;不同氮磷质量浓度比影响极显著(P0.01),且当氮磷比为10:1时,铜藻幼苗的特定生长率最大。研究结果为铜藻幼苗培育过程中营养盐的合理调控提供了理论依据。
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| 关 键 词： | 氮磷比 特定生长率 铜藻幼苗 |
| 收稿时间： | 2016/10/21 0:00:00 |
| 修稿时间： | 2016/11/18 0:00:00 |
EFFECTS OF NITROGEN AND PHOSPHORUS CONCENTRATIONS AND RATIOS ON GROWTH OF SARGASSUM HORNERI SEEDLINGS |
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| LI Hui,DING Gang,XIN Mei-Li,LIU Wei,MA Zeng-Ling,LI Da-Peng and GUO Wen.EFFECTS OF NITROGEN AND PHOSPHORUS CONCENTRATIONS AND RATIOS ON GROWTH OF SARGASSUM HORNERI SEEDLINGS[J].Oceanologia Et Limnologia Sinica,2017,48(2):368-372. |
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| Authors: | LI Hui DING Gang XIN Mei-Li LIU Wei MA Zeng-Ling LI Da-Peng and GUO Wen |
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| Institution: | College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China,Marine Biology Institute of Shandong Province, Qingdao 266104, China,Marine Biology Institute of Shandong Province, Qingdao 266104, China,Marine Biology Institute of Shandong Province, Qingdao 266104, China,College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China,Marine Biology Institute of Shandong Province, Qingdao 266104, China and Marine Biology Institute of Shandong Province, Qingdao 266104, China |
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| Abstract: | The effects of different nitrogen (N) concentrations (0, 2, 4, 6, 8, and 10mg/L) and phosphorus (P) concentrations (0, 0.2, 0.4, 0.6, 0.8, and 1.0mg/L) and N/P ratios (5:1, 10:1, 15:1, 20:1, 25:1, 30:1, 35:1 and 40:1) on the growth and development of macrophyte Sargassum horneri seedlings were studied. The single factor and two-factor experiments were conducted for 8 days. The results showed that the concentrations and proportions of N and P in the medium had great significant (P<0.01) influence on the growth of the seedlings, but no interaction between N and P (P>0.05). The maximal specific growth rate of the seedlings occurred at 8mg/L N, 0.4mg/L P and 10:1 of N to P, respectively. The findings suggested that suitable nutrient concentration and ratio of N and P in the medium was needed for artificial culture of S. horneri seedlings. |
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| Keywords: | N/P ratio specific growth rate Sargassum horneri seedling |
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