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Effects of salinity, light and temperature on growth rates of two species of Gracilaria (Rhodophyta) 被引量:5

Effects of salinity, light and temperature on growth rates of two species of Gracilaria (Rhodophyta)
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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 32℃, 30 and 240 μmol/(m^2·s) for G. lichenoides, and 24℃, 20 and 200 μmol/(m^2·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 31.30℃, 32.10, and 287.23 lamol/(m^2·s) for G. lichenoides (16.26%/d), and 25.38℃, 21.10, and 229.07 lamol/(m^2·s) for G tenuistipitata (14.83%/d), respectively. 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 32°C, 30 and 240 μmol/(m2·s) for G. lichenoides, and 24°C, 20 and 200 μmol/(m2·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 31.30°C, 32.10, and 287.23 μmol/(m2·s) for G. lichenoides (16.26%/d), and 25.38°C, 21.10, and 229.07 μmol/(m2·s) for G. tenuistipitata (14.83%/d), respectively.
出处 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2009年第2期350-355,共6页 中国海洋湖沼学报(英文版)
基金 Supported by the 908 Special Program (908-02-04-07) the National Basic Research Program of China (973 Program, No. 2006CB400608) K. C. Wong Magna Fund in Ningbo University
关键词 Gracilaria lichenoides G. tenuistipitata var. liui Zhang et Xia environmental factors uniformdesign interaction effect 光照强度 增长率 盐度 江蓠 温度 物种 繁枝变种 特定生长率
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