منظم نمو النبات (PGR) Paclobutrazol 95 ٪ TC

                                                 Paclobutrazol

Chemical Data

CAS No

76738-62-0

Synonyms

(2RS,3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol;

Molecular Formula

C15H20ClN3O

Molecula Weight

293.8

EINECS NO

266-325-7

Appearance

off-white powder

Packing

25kg/bag,200L/drum

Uses

Used on fruit trees to inhibit vegetative growth and to improve fruit set; on pot-grown ornamentals and flower crops(e.g. chrysanthemums, begonias, freesias, poinsettias and bulbs)to inhibit growth; on rice to increase tillering, reduce lodging, and increase yield;

on turf to retard growth; and on grass seed crops to reduce height and prevent lodging.

To be applied as a folia spary, as a soil drench, or by trunk injuection.

Storage

Keep in cool and dry place; 2 years

Physical and Chemical Properties

Appearance: grayish-white powder

Molecular formula: C15H20ClN3O

Molecular weight: 293.8

Acidity( As H2SO4): 0.5% max

Insoluble matter in acetone: 0.5% max

Loss on drying: 1.0% max

Solubility: Easily solves in most organic solvents

Density: 1.22 g/ml

Melting Point: 165℃-166℃

Boiling Point: 460.9 °C at 760 mmHg

Flash Point: 232.6 °C

Stability

In water 26mg/l (20 DegreeC). In acetone 110, cyclohexanone 180, dichloromethane 100, hexane 10, xylene 60, methanol 150, propylene glycol 50 (all in g/l, 20 DegreeC).

Application

Inhibits gibberellin biosynthesis and are involved in reducing abscisic acid, ethylene and indole-3-acetic acid while increasing cytokinin levels. Use on fruit trees to inhibit vegetable growth and improve the fruit set, increase tillering on rice, reduce lodging, retard growth on turf. Protect plants against abiotic stresses such as drought stress. Prevent the crops against mildew and rusts.

Mode of action

Plant growth regulator taken up into the xylem through the leaves, stems or roots, and translocated to growing sub-apical meristems. Produces more compact plants and enhances flowering and fruiting.

Phytotoxicity

Non-phytotoxic, though it intensifies greening. Some spotting has been noted on periwinkle foliage at higher temperatures.

Formulation

Paclobutrazol 95%TC, 15%/25%/30%/50% WP, 15%/25% SC