| Description | Mepiquat chloride (N, N-dimethylpiperidinium chloride), well known as PIX, is a potential systemic plant growth regulator. It is applied in cereals including wheat, oats, barley, rye, triticale and is extensively used in the cotton production. It is intended to increase yield by inhibiting gibberellic acid synthesis. The use of mepiquat chloride results in a shorter and more compact plant, lower leaf area index due to smaller leaf size and earlier maturity. |
| References | [1] X. Ren, L. Zhang, M. Du, J. Evers, W. van der Werf, X Tian and Z. Li, Managing mepiquat chloride and plant density for optimal yield and quality of cotton, Field Crops Research, 2013, vol. 149, 1-10
[2] Amarjit Basra, Plant Growth Regulators in Agriculture and Horticulture: Their Role and Commercial Use, 2000 |
| Chemical Properties | White crystalline solid, off-white powder, orpinkish liquid. Slightly sweet, musty odor; |
| Uses | Mepiquat Chloride is a plant growth regulator used to improve crop quality and maximize yield. |
| Uses | Plant growth regulator. |
| Definition | ChEBI: A quaternary ammonium salt consisting of equimolar amounts of mepiquat cations and chloride anions. A plant growth regulator, it is used in agriculture to reduce vegetative growth including sprout suppression in garlic, leeks and onions. |
| Hazard | Moderately toxic by ingestion. Low toxicity by inhalation and skin contact. |
| Agricultural Uses | Herbicide, Plant growth regulator: Registered solely for cotton, to control the growth and yield. |
| Trade name | BAS 083 01 W®; BAS 85559X®; MEPEX®; MEPICHLOR®; MEPPLUS®; PIX®; PONNAX®; ROQUAT®; TERPAL® (with Ethephon) |
| Potential Exposure | A quarternary ammonium salt herbicide and plant growth regulator registered solely for use oncotton, to control growth and yield |
| Shipping | UN3077 Environmentally hazardous substances,solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required |
| Incompatibilities | Decomposes in temperatures above320℃. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine,fluorine, etc.); contact may cause fires or explosions. Keepaway from alkaline materials, strong bases, strong acids,oxoacids, epoxides. |
| Waste Disposal | Do not discharge into drainsor sewers. Dispose of waste material as hazardous wasteusing a licensed disposal contractor to an approved landfill.Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Incineration witheffluent gas scrubbing is recommended. In accordancewith 40CFR165, follow recommendations for the disposalof pesticides and pesticide containers. Noncombustible containers should be compacted and buried under more than16 in/40 cm. of soil. Must be disposed properly byfollowing package label directions or by contacting yourlocal or federal environmental control agency, or bycontacting your regional EPA office. |
