maleic hydrazide

maleic hydrazide

[mə′lā·ik ′hī·drə‚zīd]
(organic chemistry)
C4N2H4O2 Solid material, decomposing at 260°C; slightly soluble in alcohol and water; used as a weed killer and growth inhibitor.
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Maleic hydrazide (MH) avoids cell division in the apical meristem of plants; on the other hand, trinexapac-ethyl (TE) inhibits the biosynthesis of gibberellins, both reducing unwanted shoot growth (Fletcher et al., 2000).
Maleic hydrazide inhibits mitosis and meiosis in meristematic regions (Jabee et al., 2008).
Fruit yield per hectare in cucumber was found to be influenced positively by the application of lower concentrations of maleic hydrazide, either alone or in combination with ethephon [21, 22].
Cytotoxicity and mode of action of maleic hydrazide in root tips of Allium cepa L.
Allium cepa anaphase-telophase root tip chromosome aberration assay on N-methyl-N-nitrosourea, maleic hydrazide, sodium azide, and ethyl methanesulfonate.
These range from determining alkaloid content via the spectrometric method; measuring maleic hydrazide residues; assessing vapour phase nicotine and 3-ethenylpyridine in air through the gas-chromatographic method, and others.
Maleic hydrazide is commonly applied to discourage offshoot growth.
Growth Retardants for Turfgrasses Generic Name Product Name Effects Chloflurenol Maintain Absorbed by foliage, carried CF-125[R] upward and down ward; inhibits or slows cell division Maleic hydrazide Chemform[R] Absorbed by foliage, carried to De-Cut[R] areas of active growth, inhibits Retard[R] cell division in shoots, buds Siesta[R] and roots Slo-Gro[R] Super Sprout Stop[R] Maleic hydrazide Posan[R] Absorbed by foliage, carried to plus areas of active growth; chloflurenol suppresses seedhead formation Mefluidide Embark[R] Absorbed by foliage; carried upward more than downward; suppresses growth and seedhead formation
Under the PIC procedure, dangerous substances or their preparations can only be exported with the advance consent of the importing country.According to the organisers of the Rome Conference, six new pesticides are also due to be added to the list of products covered by this measure.Delegates attending the Rome meeting also agreed to set up a committee to look into provisional chemicals and give its opinion on several other substances that have been singled out as hazardous: bromacil, dichloroethylene, ethylene oxide and maleic hydrazide.Several countries taking part in the Rome Conference stressed the need for technical and financial assistance to help implement the procedure introduced by the Rotterdam Convention.