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It is well-known that brassinolide (BR) plays a key role in the regulation of abiotic stress responses in plants. However, the effects of brassinolide on alleviating Zn phytotoxicity in watermelon (Citrullus lanatus L.) seedlings are not clear.

2、There are so many uses for brassinolides!

(5) Easy to use: Brassinolide has strong permeability and systemic conductivity, and can be absorbed by various parts of the crop. It can be used for seed dressing, seed soaking, or spraying.

3、The Effect of Brassinolide on Chilling Resistance of

The Effect of Brassinolide on Chilling Resistance of Watermelon Seedlings under Low Temperature and Poor Light Stress

4、How to use brassinolide

Usage: Use a concentration of 0.01mg/L brassinolide as foliar fertilizer during the seedling stage, and a concentration of 0.05mg/L brassinolide during the field stage.

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It is well-known that brassinolide (BR) plays a key role in the regulation of abiotic stress responses in plants. However, the effects of brassinolide on alleviating Zn phytotoxicity in watermelon (Citrullus lanatus L.) seedlings are not clear.

How to use brassinolide?

Especially in the current situation of more extreme weather, when applying fungicides, insecticides, and acaricides, adding brassinolide at the same time can not only increase the efficacy of the drug, but also improve the resistance of crops.

What is Brassinolide? How to use Brassinolide

Brassinolide is different from the single function of the known five hormones (auxin, gibberellin, cytokinin, abscisic acid, ethylene), it has the comprehensive effect of gibberellin, cytokinin and auxin.

Common brassinolide effects and use precautions

The application methods of Brassinolide are mainly foliar spraying and soil root irrigation. Foliar spraying absorbs quickly and has a rapid effect, which is suitable for situations where rapid nutrition supplementation is needed or to cope with sudden adversity.

Brassinolide: A Plant’s Key to Growth and Resilience

The understanding of brassinolide’s functions has led to its practical application in agriculture to enhance crop productivity and resilience. It increases crop yields in food crops like rice, wheat, and potatoes, often by 10%.

How to use brassinolide to achieve the best?

During the flowering period of the fruit trees, use 0.2% potassium dihydrogen phosphate + brassinolide diluent and spray evenly on the surface of the fruit leaves to reduce the effects of cold in the early spring on the fruit trees.

Brassinolide is a plant hormone that promotes growth, increases crop yields, and improves quality. During watermelon seedling cultivation, brassinolide can be used as a supplemental fertilizer to enhance growth speed and stress resistance. Below is a detailed guide on how to properly use brassinolide for watermelon seedling treatment.

1. Understanding the Mechanism of Brassinolide

Brassinolide works by regulating hormonal balance within plants. It promotes the synthesis of gibberellins, a class of growth regulators that stimulate stem and leaf development. Additionally, it inhibits ethylene production, a hormone responsible for fruit ripening and abscission. Thus, brassinolide not only boosts growth but also extends the maturation period of fruits.

2. Selecting Appropriate Brassinolide Products

When choosing brassinolide products, consider:

1. Ingredients & Purity: Ensure the primary component is brassinolide with high purity to avoid impurity-related damage.
2. Crop Suitability: Opt for products specifically formulated for watermelon seedlings.
3. Application Methods: Check dilution ratios, timing, and usage instructions.
4. Brand Reputation: Prioritize trusted brands for quality and safety.

3. Proper Application Methods

1. Soil Preparation: Disinfect and amend soil to enhance nutrient availability and microbial activity.
2. Fertilization Techniques:
   • Dilute brassinolide according to instructions and spray evenly around seedling roots.
   • Alternatively, sprinkle directly onto soil and cover with a thin layer of soil.
3. Timing: Apply during the early growth stage (within one week after sprouting) for optimal results.
4. Precautions:
   • Avoid overapplication to prevent excessive growth or adverse reactions.
   • Monitor plant responses and adjust protocols if abnormalities arise.
   • When mixing with other fertilizers, follow proper ratios to avoid chemical reactions.
5. Post-Application Care: Maintain regular watering, top-dressing, and pest control. Adjust fertilization strategies based on growth observations.

4. Combining Brassinolide with Other Fertilizers

Brassinolide can be paired with nitrogen, phosphorus, and potassium fertilizers to address varying growth stages. Flexibly adjust application plans based on plant health and soil conditions for synergistic effects.

5. Conclusion & Recommendations

Brassinolide is an effective growth regulator for watermelon seedlings. To maximize its benefits:

• Understand its mechanisms and application guidelines.
• Pair it strategically with other nutrients.
• Ensure diligent post-application management for healthy growth.

By following these practices, brassinolide can significantly enhance watermelon seedling development and overall yield potential.