Improved growth performance of Gracilariopsis heteroclada via short-term nitrogen enrichment
MetadataShow full item record
Cited times in Scopus
This study examined the effect of short-term nitrogen (N) enrichment on Gracilariopsis heteroclada growth and agar quality. Planting materials were soaked in different concentrations of ammonium chloride (NH4Cl) for 6 h. Total thallus N content was highest in Gp. heteroclada enriched in 300 mg l-1 NH4Cl. Growth experiments showed that this enrichment treatment (300 mg l-1 NH4Cl for 6 h) increased the growth of Gp. heteroclada (4.22±0.09% day-1) compared with the control (3.68±0.12% day-1). Pond culture using enriched Gp. heteroclada resulted in high growth rates (6.14±0.50% day-1). No epiphyte growth was observed during either the growth experiment or the pond culture. There were no significant differences between the agar yields of the enriched (3.65±0.36%) or control (3.78±0.18%) Gp. heteroclada. Additionally, no significant differences were detected when the gel strength of the enriched (611±22 g cm-2) and control (587±11 g cm-2) Gp. heteroclada were compared. The results suggest that the short-term N enrichment method could be an alternative culture strategy to increase Gp. heteroclada production and lower farming costs.
Suggested CitationSantander-Avanceña, S. S., Luhan, M. R. J., & Felera-Panizales, J. (2015). Improved growth performance of Gracilariopsis heteroclada via short-term nitrogen enrichment.
- AQD 
Showing items related by title, author, creator and subject.
Determination of chemical properties of meat: Determination of volatile basic nitrogen (VB-N), trimethylamine oxide nitrogen (TMAO-N) and trimethylamine-nitrogen (TMA-N) by Conway's micro-diffusion method (N/150 hydrochloric acid and N/70 barium hydroxide) Yamagata, Makoto; Low, Lai Kim (Marine Fisheries Research Department, Southeast Asian Fisheries Development Center, 1992)
Effect of short-term immersion of Kappaphycus alvarezii (Doty) Doty in high nitrogen on the growth, nitrogen assimilation, carrageenan quality, and occurrence of “ice-ice” disease Luhan, Maria Rovilla; Santander-Avancena, Sheryll; Mateo, Jonalyn (Springer Verlag, 2015)Short-term immersion of Kappaphycus alvarezii (Doty) Doty in a high-nitrogen-containing medium was tested to increase growth, improve the quality of carrageenan, and decrease “ice-ice” disease occurrence. Tank-reared ...
Carbohydrate, nitrogen and protein content of kinetin-treated Azolla pinnata var. imbricata plants. Tabbada, Reynaldo A. (College of Arts and Sciences, University of the Philippines, 1988)The influence of various levels of kinetin on growth, carbohydrate, nitrogen, and protein content of Azolla pinnata var. imbricata plants cultured in a nitrogen-free 40% Hoagland’s solution under greenhouse conditions was ...