The role and skill of brassinolide
Brassinolide is a new type of green plant growth regulator , commonly used to promote the growth of various vegetables and fruits. Because brassinolide is a phytohormone product, the normal dose is safe and effective, attracting many farmers. This article will give you a detailed introduction to the role and use of brassinolide:
The role of brassinolide
1. Brassinolide is used in various stages of plant growth and development to promote vegetative growth and fertilization, because its chemical structure is similar to animal sex hormones.
2. The concentration of brassinolide is very low, generally between 0.0001 and 0.00001 ppm.
3. The physiological role of brassinolide shows some characteristics of auxin, erythrotoxin and cytokinin.
4. The roots, stems and leaves of the brassinolide plant can be absorbed.
5. The ability of brassinolide to detoxify (the phytotoxicity caused by herbicides).
6, brassinolide resistance (such as rice blast, sheath blight, cucumber gray mold, tomato blight, cabbage, radish soft rot, etc.).
7. Brassinolide can be synergistic with fertilizer, bactericidal and insecticide .
Brassinolide use tips
1. Promote cell division and promote fruit enlargement. It has a significant promoting effect on the division of cells, and promotes the lateral growth and longitudinal growth of organs, thereby playing the role of expanding fruits.
2. Delay leaf aging, keep green time for a long time, strengthen chlorophyll synthesis, increase photosynthesis, and promote leaf color to become greener.
3, break the top advantage, promote the germination of the side buds, can penetrate the bud differentiation, promote the formation of side branches, increase the number of branches, increase the number of flowers, increase the fertility of pollen, thereby increasing the number of fruits to increase yield.
4. Improve crop quality and improve commodity quality. Inducing parthenocarpy, stimulating ovary enlargement, preventing falling flowers, promoting protein synthesis, and increasing sugar content.
The main application of brassinolide in agriculture
1. Application of brassinolide in rice: Brassinolide is a root-enhancing sputum, which can be incubated with a 0.1% soluble powder 100,000 times solution (0.01 mg/L) for 24 hours before sowing, or Spray 50 kg of this concentration in the seedling stage. Brassinolide promotes flowering and grain filling, increases ear weight and 1000-grain weight, and can spray 50 kg of 0.01-0.05 mg/L liquid in the end of tillering, from the stage of panicle formation to the flowering stage. For example, acreage of 0.04% water agent 1.25-6.25 grams, brassinolide 50% water: or 0.2% soluble powder 0.25-1.25 grams, 50 kg water. After application of brassinolide, the resistance of rice seedlings to herbicides such as butachlor and chlorhexidine can be improved, and the incidence of sheath blight can be reduced.
2. Application of brassinolide on wheat: Brassinolide is used to promote germination, strong seedling and improve the ability of splitting, and soaking seeds with 10000 times of 0.01% emulsifiable concentrate for 12 hours. Brassinolide in wheat from booting to flowering stage, using 10% of 0.01% emulsifiable concentrate, 50 kg of water, spraying stems and leaves, can increase leaf chlorophyll content, increase seed setting rate, grain number per ear, ear weight and 1000-grain weight. Thereby increasing production.
3. Application of Brassinolide on corn: soaking seeds with 0.04% brassinolide aqueous solution 4000 times for 24 hours before sowing. After soaking and drying, seeding can accelerate seed germination, increase root length and increase single plant fresh weight. Before tasseling, the brassinolide should be 0.25-2.5 ml of 0.04% water or 10-20 ml of 0.01% emulsifiable concentrate, 50 kg of water, spray the whole plant, and brassinolide can increase photosynthesis and reduce the baldness of the ear. Increase the number of grains per ear.
4, the application of brassinolide oil crops: brassinolide is used to cultivate soybean seedlings, can be soaked with 0.04% water agent 4000 times liquid for 6-12 hours before sowing, remove and put in a cool place, wait for beans Seeding when wrinkled, promote seedling growth, increase plant height and root weight. In the flowering stage of soybean, the stems and leaves are sprayed with 10000 times of 0.15% emulsifiable concentrate, and the brassinolide can enhance the lodging resistance and reduce the yield of the pods. Brassinolide sprayed once in the bud stage and flowering stage of rapeseed, and used 50% of the 5000% emulsifiable concentrate 50kg per acre to increase the stem diameter of the plant, the number of spindle branches, the number of pods per plant, and the moss The number of grains per pod and the weight of 1000 grains increase the yield of caprolactone by more than 10%. In order to enhance the cold resistance of the spring seedlings in the south, soak seeds with 0.01% emulsifiable concentrate 1000-10000 times for 24 hours before sowing. It has been reported that the peanut can be sprayed with 0.15% of brassinolide lactone 75000-10000 times or brassinolide 0.0002% soluble powder 400 times, which can increase yield by more than 10%.
5. Application of brassinolide lactone: Brassinolide sprayed 2-3 times in the seedling stage and growth period of leafy vegetables, using 0.04% water agent 20000-40000 times liquid per kilogram 50 kg, which can promote Growing, brassinolide increases yield. The tomato is sprayed with 0.1 mg/L concentration solution (0.01% emulsifiable concentrate 1000 times solution or 0.04% aqueous solution 4000 times solution) on the page from the flowering stage to the fruit enlargement stage. The brassinolide can significantly increase the fruit weight and increase the low temperature resistance of the plant. To reduce the disease. Brassinolide can be used to spray the stems and leaves with a concentration of 0.01 mg/L (equivalent to 10000 times of 0.01 emulsifiable concentrate) at the seedling stage of cucumber, which can improve the ability of the seedlings to resist the low temperature of 7-10 °C at night.
6. Application of brassinolide on sugarcane: Spraying 0.01~0.04mg/L concentration liquid (corresponding to 0.04% water agent 10000～40000 times liquid) on the leaf surface of the tillering stage can increase yield and increase sugar.
7. Application of Brassinolide on fruit trees: Navel orange can spray the concentration of 0.01-0.1 mg/L of brassinolide in the flowering stage and the first physiological fruit drop, which can significantly increase the fruit setting rate. Must increase sweetness. Watermelon was sprayed three times with 0.01% brassinolide lactone 1000 times during flowering, and each time interval was 5 days, it could significantly increase the weight of sitting melon and single melon.
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