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Effects of salinity, light and temperature on growth rates of two species of Gracilaria (Rhodophyta)

文献类型： 外文期刊

作者： Xu Yongjian 1 ; Wei Wei 2 ; Fang Jianguang 1 ;

作者机构： 1.CAFS, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China

2.Ningbo Univ, Minist Educ, Key Lab Appl Marine Biotechnol, Ningbo 315211, Peoples R China

关键词： Gracilaria lichenoides;G. tenuistipitata var. liui Zhang et Xia;environmental factors;uniform design;interaction effect

期刊名称：CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY （ 影响因子：1.068； 五年影响因子：0.983 ）

ISSN： 0254-4059

年卷期： 2009 年 27 卷 2 期

页码：

收录情况： SCI

摘要： Effects of temperature, salinity and light intensity on growth rates of Gracilaria lichenoides and G. tenuistipitata var. liui Zhang et Xia were tested. Eight to ten levels of each factor were first tested separately. The best growth rate was obtained under the conditions of 32A degrees C, 30 and 240 mu mol/(m(2)center dot s) for G. lichenoides, and 24A degrees C, 20 and 200 mu mol/(m(2)center dot s) for G. tenuistipitata, respectively. Then a uniform design was used to evaluate the optimal combinations of the three factors. The best conditions for the highest daily specific growth rates (% increase in wet weight) are determined to be 31.30A degrees C, 32.10, and 287.23 mu mol/(m(2)center dot s) for G. lichenoides (16.26%/d), and 25.38A degrees C, 21.10, and 229.07 mu mol/(m(2)center dot s) for G. tenuistipitata (14.83%/d), respectively.

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