NAA is a broad-spectrum plant growth regulator, it’s functions mainly include:
1) Promote cell division and plant growth,
2) Induce the formation of adventitious roots, increase fruit set and prevent fruit drop;
1-naphthylacetic acid, NAA
Clourless and odorless crystal
Plant growth regulator / Agrochemical
Low toxic to human and livestocks, the acute oral toxicity to adult rat LD50: 1000-5900mg/kg.