Paclobutrazolis a kind of inhibitory plant growth regulator. It is a new, high-efficiency, low -toxic plant growth regulator, and has a broad -spectrum sterilization. It can obviously reduce the growth advantage of the top, promote the breeding of side buds (divide), thick stems, and dwarf the plant. It can increase the content of chlorophyll, protein and nucleic acid, reduce the content of gibbererin in the plant body, and reduce the content of ethylic acid and increase the release of ethylene.
It mainly acts through the root absorption. Dorazole is a new type of plant growth regulator, which can inhibit the production of gibbererin derivatives and reduce the division and extension of plant cells. It is easy to be absorbed by the root, stems, and leaves, and has both sterilization. It has a wide range of activity for the plants, which can make the plant's stems short and strong, reduce inverted and increase yield.