渔业科学进展2013，Vol.34Issue(1)：145-150,6.
光照对脆江蓠生长及光合色素含量的影响
Impact of light intensity on growth and levels of photosynthetic pigments of Gracilaria chouae
摘要
Abstract
The impact of light intensity on growth and biomass of Gracilaria chouae were studied under laboratory conditions. It was found that G. Chouae could not keep long term growth at a low light intensity (40 μmol/m2 · s). In a short time (<7 d), G. Chouae achieved the rapidest grow that 80 ~ 120 μmol/m2 · S, and the content of photosynthetic pigment was greater than the other treatments. In a longer period (14 ~28 d) , the relative growth rate and the content of photosynthetic pigment of G. Chouae increased with higher light intensities. Their dry weight reached the peak at 200 μmol/m2 · S. The highest photosynthetic rate and respiration rate of G. Chouae were obtained at 0. 40 ± 0. 12 μmol O2/g · S, and 0. 07 ± 0. 03 μmol O2/g · S respectively. The light saturation and compensation points of G. Chouae were 200 ± 60 μmol/m2 · S and 35 ± 15 μmol/m2 · S, respectively.关键词
脆江蓠/相对生长速率/光合色素/光合作用Key words
Gracilaria chouae/Light intensity/Relative growth rate/Photosynthetic pigment/Photosynthesis分类
农业科技引用本文复制引用
卢晓,李美真,徐智广,王翔宇..光照对脆江蓠生长及光合色素含量的影响[J].渔业科学进展,2013,34(1):145-150,6.基金项目
国家海洋公益项目(200905020 （）
200905019 （）
201105008-2)和国家863项目(2012AA10A413)共同资助 （2012AA10A413）
