The growth of the seaweed Sargassum plagiophyllum using different planting distance

Abstract

Abstract Planting distance, a distance between seaweed clumps, has become an important part to increase growth for seaweed cultivation. However, there are very few studies related to the planting distance (PD) of Sargassum plagiophyllum done in Indonesia. In this study, three different PDs: 10, 15 and 20 cm were used as treatments with 3 replications. The results showed that 20-cm PDs had higher Daily Growth Rate (DGR) than those of other two treatments. The highest growth rate of S. plagiophyllum for 36 days experiment was found in 20-cm PD (4.95 ± 0.97%/day). It was followed by 15-cm PD (4.18 ± 1.32%/day) and 10-cm (3.28 ± 0.91%/day), respectively. The mean DGRs obtained in this study were higher than those of a study of Sargassum culture done in Indonesia and an international standard of DGR.