Compare the growth and productivity of I. aquatic species on hydroponic subsystems within an aquaponic system

Abstract

The growth and productivity of two the Water Spinach varieties [Kangkung Unggul BikaR and Kangkung Bangkok LP-1R] had already been an experiment on two different Hydroponic culture subsystems [Floating Raft and Pumice Bed] of an Aquaponic circulatory system, where mineral nutrients of the Water Spinach vegetables were absorbed from biochemical processes occurring in solid wastes of fish and excess feeds. Consequently, this study showed individual functions of these two different Hydroponic culture subsystems from new established dates no significant differences at the 7th test date, until increasingly significant difference for the Hydroponic culture subsystem of Floating Raft is less effective than Hydroponic system of Pumice Bed based on the height of shoot, length of petiole and width of leaf on the 14th test date and the height of shoot, length of petiole, length of leaf, the number of leaf and length of root on the 21st test date. Nonetheless, Hydroponic subsystems did not support the growth and productivity of the Water Spinach varieties in all stages of testing about statistical significance. In addition, in term of productivity criteria and growth criteria on the 7th, 14th and 21st dates of testing, no significant difference were observed between two Water Spinach varieties. Finally, the advice of the study does not choose the treatment [Floating Raft Hydroponic culture subsystem and Kangkung Unggul BikaR variety] due to the poor result for the height of the shoot, length of petiole and reality of yield of Kangkung Unggul BikaR variety are probably at the 21st test date.