1、芸苔素内酯对石笔木幼苗生长的影响

This study provides a reference for the efficient cultivation of Pyrenaria spectabilis at seedling stage. Keywords Pyrenaria spectabilis; brassinolide; spraying frequency; seedlings growth 石 笔 木（Pyrenaria spectabilis）是 山 茶 科 核 果 茶 属常绿乔木，主要分布于广东、广西等地 [1]。

2、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.

3、Effects of Brassinolide on Growth, Photosynthetic Rate and

The spraying of brassinolide increased the lignin content of gourds under stressful conditions. The lignin content increased by 13.14% under NaCl treatment compared to the control.

Practical applications of brassinosteroids in horticulture—Some field

Brassinosteroids (BS) are a class of steroidal plant hormones which are highly stable and environment friendly. They are involved in a wide range of physiological and biochemical responses in plants. Their role in the increase in productivity of agricultural and oil seed crops is well established.

Effects of Brassinolide on Growth, Photosynthetic Rate and

As a plant growth regulator, brassinolide has a regulatory effect on plants under salt stress. In this study, “Yayao” gourd was treated with 85 mmol/L NaClstress to study the alleviation effect of different concentrations of brassinolide on ornamental gourd.

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.

(PDF) Advances in Brassinolide Regulation of Plant Growth

This study showed that brassinolide treatment enhanced the activities of RNA and DNA polymerases as well as the levels of RNA, DNA, and protein, suggesting that brassinolide responses are ...

Dosage of Brassinolide

Pls start to foliar spraying with solution (0.05mg/L),It can promote growth, Increase the quality of fruits. Brassinolide also can be used on many other crops (Such as sugar orange, cucumber, celery and others).

How to use brassinolide to achieve the best?

Use 0.2% potassium dihydrogen phosphate + brassinolide foliar spray at the right time during this period, which has a good effect on promoting garlic roots and promoting growth. Cucumbers are used in the fruiting period to make cucumbers good in shape and high yield.

Brassinolide: A Plant’s Key to Growth and Resilience

Brassinolide can be applied in various ways, including foliar sprays, seed treatments, or soil drenches. Its use aligns with sustainable agriculture principles by potentially reducing the need for chemical fertilizers and pesticides.

Brassinolide is a plant growth regulator primarily used to promote plant growth and prevent pests and diseases. The frequency and timing of brassinolide application depend on factors such as plant species, growth stages, and environmental conditions. Below is a detailed guidance plan:

I. Application Methods for Brassinolide

1. Dilution Ratio: Before use, dilute brassinolide according to the product manual. For most plants, a dilution ratio of 1:1,000 to 1:2,000 is recommended. Adjust the ratio based on specific needs.

2. Spraying Technique: Apply the diluted solution evenly onto plant leaves, stems, or roots. Ensure full coverage without missing areas or over-applying.

3. Spraying Frequency:

   • The optimal frequency varies by plant type and growth stage.
   • Increase spraying during active growth phases (e.g., spring shoot development, fruit expansion) and reduce it during dormant periods.
   • Adjust frequency based on observed results and environmental factors.

4. Timing:

   • Spray in the morning or evening when temperatures are cooler. Plants absorb nutrients more efficiently during these periods.
   • Avoid spraying during hot mid-day to prevent stress on plants.

II. Key Considerations

1. Safe Usage:

   • Follow product instructions strictly. Do not alter dilution ratios or methods without guidance.

2. Environmental Protection:

   • Minimize harm to non-target organisms. Properly dispose of leftover solutions and waste to avoid soil/water contamination.

3. Crop Compatibility:

   • Adjust timing and frequency based on crop sensitivity. For example, reduce dosage or frequency for sensitive plants.

4. Compatibility with Other Pesticides:

   • Avoid mixing brassinolide with alkaline pesticides, as this may reduce efficacy or create toxic byproducts.

5. Monitor Plant Response:

   • Observe plant health and environmental changes regularly. Address abnormalities promptly.
   • Record post-application effects to evaluate effectiveness and refine future use.

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. Proper application methods and attention to detail will maximize brassinolide’s benefits, promoting healthy plant growth.