Potential of Kappaphycus alvarezii (seaweed) extract as biostimulant on the growth of mangrove propagules (Rhizophora mangle L.) through foliar application

This study investigated the potential of seaweed extract Kappaphycus alvarezii as biostimulant in 3% concentration on relative growth rate, net assimilation and root to shoot ratio mangrove propagules Rhizophora mangle L. through different day- intervals foliar application under field experiment. There were two factors included: factor A- types treatment (A1- water, A2- extract, A3- commercial biostimulant); and, B- day-interval (B1- 4 days, B2- 8 B3- 12 days). It was revealed that K. Alvarezii had no significant effect rate R. Mangle Moreover, difference application. recommends explore higher from other species a greenhouse setting.