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- W2254407018 abstract "The influence of selected environmental parameters on the growth of two southern African agarophytes, Gracilaria gracilis and G . aculeata was studied with a view to providing information required for their potential cultivation. A series of laboratory-based growth studies were conducted to determine the specific growth rates of the taxa under various conditions of temperature (15°, 22° and 30°C), irradiance (70–170 μmol m - 2 s - 1 ), salinity (5–50%) and nitrogen-nutrition (supplementations of 100–1500 μmol l - 1 ). Both taxa tolerated a range of environmental conditions. Maximum specific growth rates were recorded at 22°C/170 μmol m - 2 S - 1 , 35% for G . gracilis and at 22°C/70 μmol m - 2 s - 1 , 30% for G . aculeata. Additions of NO 3 -N, within the range 330–1830 μmol N, did not significantly infiuence the growth of G. aculeata or G . gracilis. Additions of NH 4 -N, up to a total of 830 μmo N for G. aculeata and 1330 μmol N, for G. gracilis did not enhance growth. Additions of NO 3 -N in excess of total N concentrations of 1330 and 1830 μmol N, were detrimental to the growth of G . aculeata and G . gracilis respectively." @default.
- W2254407018 created "2016-06-24" @default.
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- W2254407018 date "1997-12-01" @default.
- W2254407018 modified "2023-09-26" @default.
- W2254407018 title "Studies on Gracilaria gracilis (Stackhouse) Steentoft, Farnham and Irvine and Gracilaria aculeata (Hering) Papenfuss from southern Africa. I. The influence of temperature, irradiance, salinity and nitrogen-nutrition on growth" @default.
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- W2254407018 doi "https://doi.org/10.1016/s0254-6299(15)30800-0" @default.
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