Scientific name plasticine, chlorofluorocarbon-methyl morpheme, chlorotoluidine, chemical name of chloro9-hydroxy fluorene 9-hydroxy methyl ester molecular formula c15h1kloc-0/clo3 molecular weight 274.7 1 chemical structure HOOOCl physical and chemical properties white odorless crystalline solid, melting point1. Slightly soluble in water, the solubility at 20℃ is 18mg/L in water, 26g/ 100ml in acetone, 7g/ 100ml in benzene, 240mg/L in isopropanol and 8g/L in ethanol, and it is stable at room temperature. Sensitive to ultraviolet photolysis. Strong acid and alkali are easy to decompose. Low toxicity. The acute oral LD50 is 5000 mg/kg in rats and 6400 mg/kg in dogs, which is safe for bees. It is very toxic to animals and metabolizes in plants for several days to weeks. Physiological functions and efficacy are absorbed by stems and leaves and transmitted to the whole body, which hinders the downward transportation of endogenous hormones in terminal buds, increases the activity of indoleacetic acid oxidase and reduces the content of auxin. It is easily metabolized and decomposed in plants, and the final product is carbon dioxide. Can inhibit cell division and elongation. Most of them accumulate in the apical meristem, so they can inhibit the dwarfing of apical meristem and plants and promote the growth of lateral buds; It can inhibit the growth of secondary roots and promote the formation of adventitious roots; Inhibit that geotropism and phototropism of flowering plant; Delaying plant growth can delay flowering, fruiting and senescence; Some plants can be induced to parthenocarpy. It has antagonistic effect on gibberellin, which can make vernalization bulb plants unable to bolting. It can not only delay the growth and senescence of plant vegetative body, but also delay its flowering, fruiting and maturity. Formulation: 2.5% aqua, 10%, 12.5% EC.

attached table

1. Use

Smear, soak and spray.

2. Suitable crops

It can be used to promote rice tillering, prevent coconut from falling, improve cucumber fruit setting rate and grow seedless fruits, and delay or prevent lettuce bolting. Among vegetables, it is mainly used for cauliflower, radish, spinach and so on. Early maturity and quality improvement.