Clonal propagation of Eucheuma denticulatum and Kappaphycus alvarezii for Philippine seaweed farms

摘要: Technique improvement and cost reduction of branch culture, micropropagation, callus production carrageenan-yielding seaweeds Kappaphycus alvarezii Eucheuma denticulatum is presented. Low culture possible by enriching seawater with 0.1% coconut water 1 mg l−1 indole-3-butyric acid for 24 h wk−1 or continuous 0.01% Algafer, a Philippine fertilizer. Micropropagation 0.5 cm explants had almost 100% new demonstrating the viability regenerated plants. The use carrageenan as media was not effective when compared to agar. Propagules both species, transferred from University Marine Science Institute (UPMSI) facility field, showed daily percent growth rates 5 5.5% d−1 over 84 days. Based on costs UPMSI laboratory, in seaweed farming area estimated about U. S. $22000 during initial year 58% less second year.