| dc.description.abstract | Coastal areas are the main habitat for mangrove forests. This area has both
beauty and conflict of interest, so that the ecosystem in the area faces various
threats and problems caused by human damage, such as coastal reclamation work,
bombing, poisoning of coral reefs, and housing construction. This research was
conducted to see the differences in the treatment of mangrove nursery types of red
mangroves on their growth and development based on the distance from the
coastline to the northeast. The research was carried out from October to December
2020. Measurements were carried out as far as 40 meters from the shoreline to the
northeast. Seedlings of R. apiculata were planted from a distance of 40 meters to
44 meters at a distance of 1 meter by 1 meter with each plot consisting of 6 plants
with the treatment: p0 = 40 meters, p1 = 42 meters, p2 = 43 meters, p3 = 43
meters and p4 = 44 meters. The results obtained during 12 weeks of observation
showed that the highest seedling height was at a distance of 41 meters, the highest
diameter was at a distance of 41 meters and the highest number of leaves was at a
distance of 40 meters. In conclusion, the most ideal planting distance is at p1 (41
meters distance). | en_US |