Brassinolide: A Comprehensive Guide for Agricultural Use
2025-03-18
1. What is Brassinolide?
Brassinolide (BL), also known as (yún tái sù) or芸苔素内酯, is a naturally occurring plant steroid hormone classified as a brassinosteroid. It was first isolated from Brassica napus pollen in the 1970s and is now recognized as the sixth major plant hormone. Structurally, it belongs to the polyhydroxylated sterol family, with the chemical formula C₂₈H₄₈O₆ and CAS number 72962-43-7. Brassinolide regulates critical plant processes such as cell elongation, division, and stress resistance, making it a cornerstone in modern agriculture.
Brassinolide (BL), also known as (yún tái sù) or芸苔素内酯, is a naturally occurring plant steroid hormone classified as a brassinosteroid. It was first isolated from Brassica napus pollen in the 1970s and is now recognized as the sixth major plant hormone. Structurally, it belongs to the polyhydroxylated sterol family, with the chemical formula C₂₈H₄₈O₆ and CAS number 72962-43-7. Brassinolide regulates critical plant processes such as cell elongation, division, and stress resistance, making it a cornerstone in modern agriculture.
2. Benefits of Brassinolide
Brassinolide offers multifaceted benefits for plant growth and crop productivity:
Brassinolide offers multifaceted benefits for plant growth and crop productivity:
Enhanced Growth: Promotes cell elongation and division, leading to stronger stems, larger leaves, and improved root development.
Increased Yield: Boosts photosynthesis by elevating chlorophyll content and RuBisCO enzyme activity, resulting in higher grain and fruit yields.
Stress Resistance: Improves tolerance to drought, cold, salinity, and disease by stabilizing cell membranes and activating stress-response genes.
Improved Fruit Quality: Reduces flower and fruit drop, enhances pollination, and extends shelf life post-harvest.
Synergistic Effects: When combined with gibberellins (GA) or micronutrients (e.g., Zn, B), brassinolide amplifies growth promotion and stress resilience.
3. How Long Does Brassinolide Effect Last?
The duration of brassinolide’s effects depends on application methods and environmental conditions. Generally:
The duration of brassinolide’s effects depends on application methods and environmental conditions. Generally:
Short-Term Impact: Visible growth stimulation (e.g., stem elongation) occurs within 3–7 days after foliar spraying or root drenching.
Long-Term Benefits: Stress resistance and yield improvements may persist for 2–4 weeks, requiring reapplication during critical growth stages (e.g., flowering, fruit setting).
Environmental Factors: High temperatures or rainfall may shorten efficacy, necessitating more frequent applications.
4. Dosage and Application Methods
Brassinolide is highly potent, requiring minimal concentrations for efficacy:
Brassinolide is highly potent, requiring minimal concentrations for efficacy:
Recommended Concentrations:
Foliar Spray: 0.001–0.15 mg/L (e.g., 0.01%EC diluted to 1,500–2,000×).
Seed Soaking: 0.01–0.05 mg/L for 6–12 hours to enhance germination.
Soil Drench: 0.1–0.5 mg/L for root zone absorption.
Formulations: Available as soluble powders (0.1%), liquid concentrates (0.0075–0.04%), or emulsifiable oils (0.01%).
Precautions: Avoid excessive doses (>1 mg/L), which may inhibit growth or cause phytotoxicity.
5. Where to Source Brassinolide
Brassinolide is commercially available through agricultural suppliers and specialized manufacturers:
Brassinolide is commercially available through agricultural suppliers and specialized manufacturers:
Xi'an Rui Zelin Bio Tech Inc. Was Established In 2004 And Has More Than 17 Years Of Experience In Import And Export Of Foreign Trade. It Is a Large-Scale Gold Supplier Integrating Production And Sales. We Also Provide Api,Vitamins,Cosmetic Ingredients Manufacturing Service.
We have a strong professional R&D team, excellent talents and well-equipped laboratories for quality control.
All products are in accordance with international standards, with more than five years of experience in technical inspection personnel, with advanced testing equipment, with their own independent, fully equipped testing laboratory, and strive to provide customers with high quality products and services.
At present, the hot product Brassinolide widely used in medicine and other aspects.
Friends who need to buy or are interested can enter our work email through the international website or email info@ruizelinherb.com. We will reply to you as soon as possible; In addition, you can also come to the offline field visit. Our company is located at Room 2413, Building C1, Haijing International, Economic Development Zone, Fengcheng 2nd Road, Xi 'an, Shaanxi Province.
We have a strong professional R&D team, excellent talents and well-equipped laboratories for quality control.
All products are in accordance with international standards, with more than five years of experience in technical inspection personnel, with advanced testing equipment, with their own independent, fully equipped testing laboratory, and strive to provide customers with high quality products and services.
At present, the hot product Brassinolide widely used in medicine and other aspects.
Friends who need to buy or are interested can enter our work email through the international website or email info@ruizelinherb.com. We will reply to you as soon as possible; In addition, you can also come to the offline field visit. Our company is located at Room 2413, Building C1, Haijing International, Economic Development Zone, Fengcheng 2nd Road, Xi 'an, Shaanxi Province.
Conclusion:
As a natural active ingredient of citrus plants, nobiletin has shown broad application prospects in the health industry. Its multiple functions and safety make it an ideal raw material for the development of functional foods, medicines and cosmetics.
As a natural active ingredient of citrus plants, nobiletin has shown broad application prospects in the health industry. Its multiple functions and safety make it an ideal raw material for the development of functional foods, medicines and cosmetics.
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