Results
In the experiments of individual weed, water hyacinth showed to have a strong ability to produce branches. The control, water hyacinth without treat-ment, produced more than six branches.
Treatments 1 to 6 (T1~T6) inhibited thereproduction of water hyacinth at various levels, and KWH02 could provide
the highest inhibition (70%) on individual branching compared to the control (Fig.1).
In the experiments of total branches, normally a plant of water hyacinth produces an average of four
new shoots branches every 26 d, while the plant