Introduction of chlormequat chloride growth regulator
Chlormequat chloride(CCC) is an excellent plant growth regulator, which can be used in wheat, rice, cotton, tobacco, corn, tomato and other crops. Chlormequat chloride growth regulator inhibits plant cell elongation, but does not inhibit the cell division. CCC can make plants become short, stems become thick, leaves become green, blade become thick, chlorophyll content increase, root system develop. Chlormequat chloride growth regulator can make crops possess drought and water logging tolerance, can prevent excessive growth and lodging of crops. Salt and alkali resistance. Chlormequat chloride growth regulator can prevent the cotton drop bell, can increase the tuber size of potato.
Characters of chlormequat chloride growth regulator
Chlormequat chloride is low toxicity plant growth regulator. White crystal. Melting point 245℃ (partial decomposition). Easily soluble in water, the concentration of saturated aqueous solution can reach about 80% at room temperature. Insoluble in benzene, xylene, anhydrous ethanol. Soluble in propanol. Fish fishy, easy deliquescence. Stable in neutral or slightly acidic medium, chlormequat chloride growth regulator can be decomposed by heating in alkaline medium. Chlormequat chloride growth agent is obtained by heating dichloroethane and trihydroxymethylaminomethane.
Effects of chlormequat chloride growth regulator
- CCC inhibit the biosynthesis of endogenous gibberellin, thus delaying cell elongation and dwarfing the plant.
- The inhibitory effect of CCC on internode elongation can be relieved by exogenous gibberellin.
- Chlormequat chloride growth regulator can increase the water absorption ability of root system, which obviously influence accumulation of proline in plants. It is beneficial to improve plant stress resistance, such as drought resistance, cold resistance, salt alkali resistance, disease resistance and other abilities.
- After treatment with CCC, stomatal number of leaves decreased, the transpiration rate reduced, the drought resistance ability increased.
- Chlormequat chloride growth regulator is easy to be degraded by enzyme in soil, and it is not easy to be fixed by soil, so it does not affect soil microbial activity or can be decomposed by microorganisms.
What are the uses of chlormequat chloride growth regulator?
The physiological function of chlormequat chloride is controlling vegetative growth of plants (That is the growth of rhizome and leaf), promoting the reproductive growth of plants (That is the growth of flowers and fruits). Shortening the plant internode length to make it stocky and resistant to lodging. It can promote the color of leaf, strengthen the photosynthesis, and improve the drought resistance, cold resistance and saline-alkali resistance of the plant.
Chlormequat chloride growth regulator has control effect on crop growth, which can prevent seedling abortion, control length and increase tiller, increase ear and yield.
How to use chlormequat chloride growth regulator?
The effect of chlormequat chloride growth regulator is contrary to that of gibberellin, which is an antagonistic agent of gibberellin. Its physiological function is to control the vegetative growth of the plant (i.e., the growth of rhizomes and leaves).
Detailed usages of chlormequat chloride growth regulator
- When chili and potato begin to have a excessive growth trend, in budding to flowering stage, potato blade surface is sprayed with 1600-2500 mg/L of CCC, which can control ground growth and promote yield increase. 20-25 mg/L of chlormequat chloride sprays hot pepper stems and leaves, can control excessive growth and increase fruit setting rate.
- 4000-5000 mg/L of CCC liquid medicine sprays on the growing points of cabbage (lotus white) and celery, which can effectively control the bolting and flowering.
- In tomato seedling stage, soil surface spraying with 50 mg/L of CCC water aqua, can make the tomato plant compact and early flowering.
- When cucumber has 15 leaves, whole plant spraying with 62.5 mg/L of CCC water aqua, can promote fruit set.