Brassinolide

Common Name: Brassinolide
Other names: Brassins,BR,Kayaminori
Chemical name: (22R,23R,24R,)-2a,3a,22,23-tetrahydroxy-24-methyl-B-homo-7-oxa-5a-cholestan-6-one)-lactone
Chemical family: Natural PGR & Plant extract
Molecule Formular: C28H46O6
Molecular weight: 480.68

Physical & chemical characteristics :
Appearance: White to yellowish power
Melting point: 274℃
Solubility(20-25℃): Solubility in water: 5mg/l; easily soluble in methanol, alcohol.
Poisoning symptoms: No report about human poisoning.
First aid: No specific antidote known. Treat symptoms.
Toxicological data:
Acute oral in rat : LD50>5000mg/kg
Acute dermal in rat : LD50>5000mg/kg

Use purpose: it is extracted from cole pollens &plant tissue, and apply to plant by sparying. Regulate the growth of plant. Best additive to folliar fertilizers, insecticides, fungicides, herbcides.

Shelf life: 3 years under the cool, shade and dry storage conditions.
About the History of Natural Brassinolide :
American scientists discovered Brassinolide (also called as BR) first in1970, they extracted 10mg BR (plant hormone) from 450kg pollen of cole, and smeared this hormone on the second segment of stem of frijole, 4 days later, a miracle happened: the growing was so high that any other plant hormone can not achieve such fast growing. The extraction was named as BR, the sixth plant hormone. The discovery stirred a great surprise among the scientists all over the world.
Fifteen years later (in 1985) scientists of JiangXi Industry University (south of China) successfully extracted natural BR with special method and process under the cooperation of Chengdu Newsun Biochemistry Co., Ltd. Subsequently, it first was industrialized successfully in the world. Compared with other plant hormones, BR’s beneficial effect is much more better. Experiment on many kinds of crops in more than 20 countries proved that BR has a very good effect of increasing production: cereal crops: wheat, rice, corn etc.15-20% increse; fruits: banana, apple, pear, orange, etc.15-30%increase; vegetables 20-45% increase; cotton and other oil plants 10-20% increase. So, people regard the BR as the best choice for growth regulator.
Chengdu Newsun Biochemistry Co., Ltd has been devoting to the developing, industrializing and popularizing of the plant growth regulator natural brassinolide since 1985, it has worked out outstanding contribution to environmental protection and high effective agriculture in the field of plant growth regulator brassinoilide 481. this product is a new kind of PGR, produced by advanced unique orienting enzyme process extracting technology. And it has proved through large number of application experiments at home and abroad over dozens of years to have obvious effect on scores of crops including grains,oils plants, tea, fruits, vegetables and flowers in different growing stage.
So, the series of products of Natural Brassinolide - palnt growth regulator has been continually honored the Gold medal at the Fifth National Invention Exhibition , silver Medal at the National Xinghuo Project Achievement Exhibition, Houji Gold Medal at the sixth Yangling China Agriculture High-tech Achievement Exhibition sponsored by sixteen ministries including Ministry of Agriculture of Science and Technology, Famous Brand at the 2001 China International Agriculture Expo. And Green Food means Certificate by China Green Food Development Center, meanwhile, theses products also got the support as important items by the Ministry of Science and Technology.

Versatile functions:
Nine Notable Functions of Natural BR as below:
1. Promoting growth, increasing yield, improving quality.
2. Increasing the percentage of fruit setting, promoting fruit ‘s enlarging.
3. Increasing burliness rate, increasing weigh of fruits per 1000 granules.
4. Improving the ability of cold resistance and drought resistance.
5. Improving the ability of disease resistance.
6. Regulating differentiation in issue culture.
7. Efficiently relieve harmful effect of pesticide, fungicides, herbcides.
8. Increasing activity and energy of seeds and germination percentage.
9. Effectively prolong the duration time of natural preservation and transportation of fruits, vegetables and flowes when applied 5-10days before harvest.
As we know, most of the plant growth regulators or hormone have many deficiency such as lasting effect shortly, monotone effect, repeated applying, and applying many kinds of agent to crops such as growth conditioner which promote growth In one plant season we must, stunting agent which prevent plant from growing overly, flower protecting agent, fruit protecting agent, coloring agent etc. That always cause too much boher and increasing cost.
But many people don’t know that BR 481 has a double effect in regulating: promoting reproductive growth and vegetative growth. It can promote root’s growth in seedling stage, plant’s growth in growth stage and burliness in burliness stage. Applying once or twice can reach the purpose for protecting flower, protecting and enlarging fruit, getting a better gloss, increasing yield notably and improving quality obviously. Applying to corn can avoid inclining fall of corn plant and increase yield more than 20%. Applying Natural brassinolide to cotton, the effect is more obvious. As we know, spraying other hormones on the corn plant, the cotton’s leaves, steam, branches and bolls grow overly and unbalanced, which always tend to cause the unbalanced and unreasonable transportation and distributing of nutrients in plant body. But spraying natural BR can leads to the balanced growing and nutrients transportation in corn plant body among the leaves, stem, branch and flower and bolls. That beneficial effects also mainly occurred on many other fruits plants such banana, apple, etc. Applying to orange can protect fruit and increase yield the content of Vc and get better gloss.

Applying to wheat, rice, corn, soybean and peanut:
1).Spraying BR481 on wheat and rice plant, 3-7days later, the chlorophyll can be produced more in the plant, which can promote the photosynthesis to produce more nutrition and dry substances, and 7 days later the amount of root increase, and root grow deeper into the soil, which make plant get more water and nutrition and resist drought and waterlog better. Also the length of segment of base part stem decrease. The plant get a better ability of lodging resistance and yield increases about 20%.
2) .Spraying on corn during pre-female inflorescence emerging stage once and need not use any other growth hormone.
3).Can increase the disease resistance ability of peanut and soybean and augment number of legume, also can realize multi-legume The effect is very obvious.

Applying to vegetable:
Spraying on leaf-vegetables, 3-5 days later, the effect can emerge obviously. Leaves get wider and thicker, yield increases 20-40%. Applying to fruit vegetables, the plant is robust and can resist fruit dropping and flower dropping, promote fruit’s enlarging, and early maturation. So, there is no need to use 2,4-D or other hormone. Also the plant sprayed with BR481 can resist virus and frosty mildew etc. The yield increases 20-45% and vegetables can be put onto market 7-14 days earlier.

Applying to fruit tree:
1) Spraying before flowering stage, can promote the differentiation and formation of flower bud, avoid the occurrence of fluctuant yield, needn’t doing the circular peeling treatment in the stem of fruit trees, protect the flower bud from chillness damage. Spraying in flowering stage can prevent fruit dropping and flower dropping.
2) Spraying on fruit enlarging stage: promote fruit enlarging rapidly, rectify the deformed fruits; increase amount of top quality fruits greatly and increase yield 15-50% regularly.
3) Spraying on fruits coloring stage: color fruits earlier, improve the appearance and shape of friuts. Increase the coloring area of apple and peach etc. Applying to pear, the color of fruit is similar to the encased fruit. Applying to liche, longan, strawberry and banana can improve the gloss, content of sugar and shelf life.
4) Strengthening tree: rectify the leaves which are yellow and small, make the leaves greener and thicker, prevent leaf dropping, equalize the tendency of growth.
5) can improve the plant to resist salination, desease and freezing.

Applying to cotton:
Increase amount of roots, promote root grow deeper, prevent bolls from dropping efficiently, promote boll’s enlarging, make stem more robust and leaf thicker and deeper in color, have a very strong chemical controlling effect, restrain strong, prevent presenility, resist wilt of cotton, increase yield more then 15%.
Applying to stem tuber crops:
Promote fruit root grow deeper, increase amount of fruit root, prevent growing overly, resist leaf blotch and root rot, make the plant robust and mature without leaf dropping, increase production more than20%.

Specification:
Technical grade(active ingredient grade): 90% powder, 80% powder, 20% liquid,10%liquid, 0.2%powder.
Formulations: 0.1% SP, 0.0075% SL.
Trade name: BR 481

Usage table for 0.1% brassinolide soluble powder(BR 481):
Caution:
1.Dissolving BR 481 with water of 50-60℃ then spraying can get better effect.
2.Don’t spray BR 481 together with alkali pesticide and alkali substances.
3.SF481 is plant growth regulator instead of nutrient fertilizer.