The Effect of Combination of Nitrogen and Phosphate Enrichment on the Development of Seaweed Spores (Kappaphycus alvarezii)

Seaweed (Kappaphycus alvarezii) is one of the aquatic commodities that has potential to be developed due demand reaching international market (Ari, SP and Risna Yusuf, 2018). Provision seeds still carried out by vegetative means (cuttings) (Runtuboy N Slamet Abadi, However, there are problems, especially provision quality seeds, large scale, does not depend on season. can also done generatively. K. alvarezii exploiting nature sexual reproduction through development spores which characterized presence cystocarp surface thallus (Juniarta I, 2016). in its growth really needs nutrition order produce good quantity. The nutrients needed nitrogen phosphate. This role as a constituent protein phosphate provider energy (Pauwah A, et al., 2020). purpose this study was determine dose ratio enrichment development. research from November 2018 February 2019, at Laboratory Takalar Brackish Water Aquaculture Fishery Center (BPBAPT). contained 6 treatments with 3 repetitions, namely Treatment A = Without (SW), B 0.5 ppm N: P, C 1 D 1.5 : E F P. results showed highest germination treatment an average 56.95%. significantly different between (p>0.05).