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Exposure to excessive Zn significantly inhibited shoot and root fresh weight of watermelon, but this could be significantly alleviated by the optimum 0.05 μM EBR.

2、How to use brassinolide

Usage: Spray a 0.01mg/L solution of brassinolide solution during the watermelon seedling stage, with a dosage of approximately 40L per 337 square meters. Usage effect: Promote the healthy growth of watermelon seedlings. 3. Brassinolide enhances the resistance of pumpkin seedlings to diseases.

3、How often is Brassinolide sprayed?

Generally recommended use periods are: spraying once at the beginning of flowering, young fruit, and fruit expansion. The spraying concentration is 0.02-0.04 ppm, that is, 10 ml of 0.01% brassinolide product with water of 25-50 kg.

What is Brassinolide? How to use Brassinolide

Many customers do not know what is Brassinolide and how to use it ? here we China Biotech Agriculture (CBA) Co.,Ltd share with you the details and form of how the brassinolide use for different crops, dosage, using time and the effectiveness in details.

Effects of Sowing Date and Spraying of Brassinosteroid on Yield and

Spraying of BR 0.1 ppm at 2 nd and 4 th leaf stage was highly effective in increasing the yield of watermelon. The maximum number of fruits per plant was recorded in December 2 nd week sowing and sprayed with BR 0.1 ppm.

Applicable varieties of brassinolide

Usage and dosage: Spray it once in 10-15 days, 2-3 times in total, mix 15kg of water with each bottle, spray evenly on the foliage. Effect: Promote nutritional growth, enhance resistance, early maturity, increase yield by 25-40%.

How Many Times Can Brassinolide and Gibberellic Acid Be Applied Daily?

This study explores the potential of foliar-applied gibberellic acid (GA 3) and brassinolide (BR), individually and in combination, to enhance the drought resilience in pea plants.

What is Brassinolide? How to use Brassinolide ?

about Brassinolide:It was first discovered by American agricultural scientists in 1970, Brassinolide is recognized around the world as a high-efficient, broad spectrum, nontoxic plant growth regulator.

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However, the effects of brassinolide on alleviating Zn phytotoxicity in watermelon ( Citrullus lanatus L.) seedlings are not clear.

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 hormone, plays multiple roles in promoting plant growth and development, increasing crop yields, and improving crop quality. In watermelon production, brassinolide can regulate plant growth, enhance disease resistance, and improve fruit quality. there is currently no definitive research data to support the optimal frequency of brassinolide application for watermelon.

Generally, the use of plant growth regulators follows the principle of "low dosage and multiple applications", meaning each application should avoid excessive dosage to prevent adverse effects on plants. During application, it is critical to observe changes in plant growth and fruit quality to adjust the treatment plan promptly.

1. First Application

During the seedling or early growth stage of watermelon, the initial application of brassinolide should follow the recommended dosage on the product instructions. At this stage, young plants are highly sensitive to external factors, so cautious use is essential. After the first application, closely monitor plant growth and fruit quality. If no abnormalities arise, subsequent applications may proceed.

2. Second Application

If additional applications are needed during watermelon growth, adjust the dosage based on plant conditions and fruit quality requirements. Typically, the second application should use a lower dosage than the first to avoid overstimulating the plants. Continuously observe plant responses and fruit quality to refine the treatment plan.

3. Third and Subsequent Applications

For repeated applications, further reduce the dosage compared to previous uses to minimize potential negative impacts on plants. As always, closely monitor plant health and fruit quality to guide adjustments.

Currently, there is no established research-based guideline for the maximum application frequency of brassinolide on watermelon. Adherence to the "low dosage and multiple applications" principle, combined with careful observation of plant and fruit responses, is crucial. For uncertainties, consult agricultural professionals or refer to scientific literature.

Key Notes:

• Prioritize observed plant responses over rigid schedules.
• Reduce dosage incrementally with each application.
• Adjust protocols dynamically based on real-time monitoring.