1、Optimal Timing for Spraying Brassinosteroid on Potatoes

2、Optimal Use of Brassinosteroid in Crop Spraying Timing of Application: Apply brassinosteroid in the morning or evening to avoid intense midday sunlight. Additionally, refrain from spraying during rainy weather or strong winds, as this may reduce effectiveness.

2、芸苔素内酯调控植物生长发育及抗逆性的研究进展

In this review, we summarized the role and regulato-ry mechanism of brassinolide in plant growth and development and stress resistance, and made a prospect of future research direction of brassinolide, in order to provide reference for further re-search on brassinolide.

3、油菜素内酯调控植物生长发育的研究进展

本文综述了近年来有关BR对植物营养生长和生殖生长的调控、增强植物抗逆性以及BR调控的分子机制等领域的研究进展，探讨目前关于BR研究中仍存在的问题，并对今后BR的研究方向进行讨论与展望。 As a new plant hormone, brassinolide (BR) has been widely used in agriculture and forestry due to its advantages of high efficiency, environmental protection and wide spectrum.

4、Effect of different concentrations of brassinolide and sodium

This was done according to a completely random design with three replications.

Brassinolide Increases Potato Root Growth In Vitro in a

In the present study, we showed that brassinolide (BL) affects potato root in vitro growth in a dose-dependent manner. Low BL concentrations (0.1 and 0.01 μg/L) promoted root elongation and lateral root development, whereas high BL concentrations (1–100 μg/L) inhibited root elongation.

The Best Time to Use Brassinolide

Seedling stage: In the seedling stage of crops (generally in the 3-4 leaf stage), 0.01% brassinolide 20 ml/mu can be sprayed, or 0.01% brassinolide 10-20 ml/mu can be sprayed by foliar spray, in order to promote the growth of seedlings and flower bud differentiation.

(PDF) Brassinolide Increases Potato Root Growth In Vitro in a Dose

In the present study, we showed that brassinolide (BL) affects potato root in vitro growth in a dose-dependent manner. Low BL concentrations (0.1 and 0.01 μ g/L) promoted root elongation and...

Brassinolide Increases Potato Root Growth

Thus, it is necessary to determine the effects and optimal concentration of BRs for potato root formation and plant growth throughout the process of in vitro culture.

Optimal Application Frequency for Brassinolide

The optimal spraying frequency and timing of brassinolide depend on plant species, growth stages, and environmental conditions. Always adhere to product guidelines, prioritize safety, and consider ecological and crop-specific factors.

What is the Correct Application Interval for Brassinolide?

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, also known as brassinosteroid, is a plant growth regulator that promotes development, enhances stress resistance, and improves pest/disease tolerance. In agriculture, proper use of brassinolide can boost crop yields, improve quality, reduce costs, and increase economic benefits.

I. Potato Growth Stages

The potato growth cycle comprises several key phases:

1. Germination Stage: Seeds absorb water, expand, and radicles emerge through the seed coat.
2. Seedling Stage: Leaves expand, and stems thicken.
3. Flowering Stage: Plants begin flowering and tuber formation.
4. Bulk Root Formation Stage: Vegetative growth peaks, leaves expand, stems thicken, and tubers enlarge.
5. Maturity Stage: Growth halts, tubers reach maximum size, and plants enter dormancy.

II. Optimal Timing for Brassinolide Application

Based on potato growth stages, apply brassinolide during three critical periods:

1. Germination Stage: At this early stage, roots and leaves are underdeveloped, making plants vulnerable. Brassinolide strengthens root systems, enhances stress resistance, and lays the foundation for healthy growth.
2. Seedling Stage: As leaves expand and stems thicken, brassinolide accelerates growth, improves photosynthesis, and prepares the plant for flowering/tuberization. It also boosts disease resistance.
3. Flowering Stage: During peak nutrient demand, brassinolide promotes efficient nutrient uptake, increases tuber yield/quality, and reinforces resilience against adverse weather.

III. Application Methods and Dosage

Two primary application methods:

1. Foliar Spray: Dilute brassinolide and spray onto leaves for absorption.
2. Seed Soaking: Soak seeds in diluted brassinolide solution to enhance germination and seedling vigor.

Dosage Guidelines: Adjust based on variety, growth stage, and soil fertility. Use higher doses for vigorous varieties or growth stages (e.g., flowering) and lower doses for slower-growing ones. Follow the "less is better than more" principle to avoid damage.

IV. Effects and Precautions

Benefits:

• Healthier plants with dark green leaves, sturdy stems, and uniform tubers.
• Smooth, blemish-free tubers with improved taste.
• Enhanced climate resilience and market competitiveness.

Precautions:

• Use reputable brassinolide products.
• Tailor dosage/method to specific conditions.
• Avoid overapplication to prevent harm.
• Monitor plant responses and address abnormalities promptly.
• Prevent environmental contamination (soil/water).

strategic brassinolide application optimizes potato productivity and quality. By timing, dosing, and monitoring carefully, farmers can maximize yields while minimizing risks.