【1】English common name: 6-furfurylaminopurine, kinetin

【2】Commodity name: Kinetin, 6-furfuraminopurine

【3】Chemical name : (N-furanmethylbenzyl)-1H-purine-6amino

【4】CAS No. :525-79-1

【5】Molecular formula: C10H9N5O

【6】Relative molecular mass: 215.21

【7】Physical and chemical properties

White flake crystal, melting point 266～267℃. Soluble in dilute acid or dilute alkali solution, insoluble in common solvents such as water, ethanol, ether and acetone. Stable under normal temperature and acid-base conditions.

【8】 Toxicity Low toxicity

【9】Main dosage form: 98% furfuraminopurine original drug

【10】Features

Furfuraminopurine (Kinetin) is a synthetic purine plant growth regulator, which can be absorbed by the seeds, roots, shoots and leaves of plants, and has little mobility into the body. Divide; promote the differentiation of non-differentiated tissues; induce callus to sprout; promote cell enlargement and growth, and promote seed germination; induce dormant bud growth; growth; break apical dominance, promote lateral bud growth; promote flower bud formation and flowering; regulate leaf stomatal opening, etc.

【11】Applied technology

Inducing callus to sprout

Tissue: Culture 0.5mg/L induced callus to germinate in the medium.

Regulate growth and promote yield

Corn

Soaking corn with 3mg/L kinetin from Panpan Industry for 12h can promote corn germination. Using 8 mg/L kinetin to do 2 sprays during the tasseling period of corn can increase the plant height of corn by 10.3%, the diameter of the stem at the ear node by 14.5%, and at the same time, it can increase the content of chlorophyll and soluble protein in mature corn by 11.9%. The increase of 49.9% resulted in a 32.9% increase in the number of grains per panicle and a 23.8% increase in the 1000-grain weight, thereby achieving the effects of delaying senescence, increasing lodging resistance and increasing yield.

Rice

For frost-damaged rice seedlings, spraying or root application with 2 mg/L kinetin can increase the fresh weight, dry weight, plant height, average daily growth rate, chlorophyll content, and superoxide dismutase, superoxide dismutase, per plant after treatment. The content of peroxidase improves the resistance of seedlings and promotes their normal growth. In the tillering stage, early flowering stage, and grain-filling stage of rice, spraying with 4-6.7 mg/L liquid medicine can increase the number of grains, grain weight, and yield of rice.

Wheat

At the jointing stage, flowering stage, and 10 days after flowering, respectively spraying 25-50 mg/L kinetin from Panpan Industry can significantly increase the number of grains per ear and 1000-grain weight of wheat, thereby significantly increasing the yield.

Soybean

At low temperatures, soaking seeds with 1 mg/L kinetin solution for 2 hours can effectively speed up the initial germination rate of spring sowing soybeans at 10-15 ℃, significantly accelerate the growth rate of young roots, and increase the fresh weight and thousand-weight of young roots. The promotion effect at 10°C is better than that at 15°C, and at 25°C, there is no obvious promotion effect.

Green beans

In the grain expansion stage, spraying 15-30mg/L kinetin of Panpan Industry can increase the chlorophyll content of mung bean leaves, slow down the decline of soluble sugar and sucrose content in leaves, increase the starch content, and finally increase the number of mung bean per plant and grain. Yield.

Rape

During the period of horn formation, spraying 1.5mg/L kinetin combined with 1mg/L naphthalene acetic acid 1 to 3 times has a great effect on the growth and thickening of siliques and the increase in the number of grains per horn, and the yield increase effect is better.

Lettuce

Soaking seeds with 100mg/L kinetin solution for 3min can effectively break dormancy and promote germination.

Apple

Spraying 200mg/L kinetin to leaves during the fruit expansion period, once every 7 days, and continuously spraying 2 to 4 times, can increase the total antioxidant activity of mature fruits and improve fruit quality.

Seaweed

In the culture medium containing 1.0mg/L kinetin, when Porphyra algae were cultured for 25 days, the fresh weight of Porphyra algae increased the most, which could improve the yield of Porphyra.

Delay aging and prolong the storage period

Celery, Spinach, Lettuce

Before harvesting or just after harvesting, spray leaves with 20mg/L liquid medicine to preserve green and prolong storage period.

Cabbage, Cabbage

Before harvesting or just after harvesting, spray the leaves with 40mg/L liquid medicine to keep them green and prolong the storage period.

Chrysanthemum

The whole plant spraying treatment with 20mg/L kinetin solution from head setting to flower bud emergence can increase the content of soluble sugar, soluble protein, and superoxide dismutase activity in chrysanthemum petals, and play a positive role in preventing petal cell senescence.

Carnation, gladiolus, and other cut flowers

Using 30～50mg/L kinetin as pretreatment solution, soaking cut flowers for 12h for pretreatment can improve the water balance of cut flowers, increase the fresh weight of cut flowers, increase flower diameter, delay the time when cut flowers reach the maximum flower diameter, and delay soluble protein The content of sugar and sugar decreases, the activities of superoxide dismutase, catalase and peroxidase are increased, the generation rate of active oxygen free radicals is reduced, and the life of cut flower vase is prolonged.

Rose

Using 60mg/L kinetin as a preservative in the bottle can increase the activities of superoxide dismutase and peroxidase (POD) in the petals, reduce the production rate of superoxide anion and the relative conductivity of the petal leaching solution, and induce the peroxidase and peroxidase. The expression of industrial enzymes, thereby delaying the senescence of cut flowers.

【12】Notes

The biological activity of kinetin is not as high as that of 6-BA, and the synthesis yield is low.