1、Which is Better for Frost Protection: Brassinosteroid or Amino Ethyl Ester?
Brassinosteroid achieves this by optimizing hormonal balance to improve stress resistance, while aminoethyl ester acts by suppressing ethylene to slow growth and metabolic rates.
2、Changes in content of steroid regulators during cold hardening of
A higher content of brassinosteroids (but not progesterone) was connected to better frost tolerance of winter wheat cultivars. Plant supplementation with brassinosteroid (24-epibrassinolide) and progesterone before cold hardening reduced frost damage.
3、Understanding brassinosteroid
Brassinosteroids (BRs) play a crucial role in regulating multiple biological processes in plants, particularly those related to crop productivity and stress tolerance.
4、The Role of Brassinosteroids in Plant Cold Stress Response
Brassinosteroids (BRs) are steroid hormones that play an important role in plant growth and various stress responses.
5、Chemical products for crop protection against freezing stress: A review
Ten products mainly avoid ice formation by forming semi-permeable or permeable membranes that inhibit extrinsic ice nucleation over leaves, three products work for favouring tolerating ice formation in plants, and two use both mechanisms of action.
Comparison of Different Cover Materials and External Brassinosteroid
In the current experiment, we evaluated the effects of different cover materials and exogenous brassinosteroid (BR) application on yield and quality of strawberry in the open field.
Modes of Brassinosteroid Activity in Cold Stress Tolerance
In addition to GAs, the steroid hormones brassinosteroids (BRs) also take part in growth promotion and cold stress signaling; however, in contrast to Gas, BRs can improve cold stress tolerance with fewer trade-offs in terms of growth and yields.
Modes of Brassinosteroid Activity in Cold Stress Tolerance
In addition to GAs, the steroid hormones brassinosteroids (BRs) also take part in growth promotion and cold stress signaling; however, in contrast to Gas, BRs can improve cold stress tolerance with fewer trade-offs in terms of growth and yields.
Frost Protection
Among frost protection methods, the most useful are preventive, such as choosing the right species/cultivar and sowing date. Protective methods implemented in the night of frost are affordable only in high-value crops in horticulture and fruit production.
Brassinosteroids (BRs) Role in Plant Development and Coping with
BRs have been shown in numerous studies to have a positive impact on plant responses to various biotic and abiotic stresses.
Brassinosteroid and aminoethyl ester (also known as ethylene-like substances) are both commonly used plant growth regulators that demonstrate effectiveness in preventing frost damage. their mechanisms of action, suitable crops, and application methods differ, requiring careful selection based on specific circumstances.
1. Mechanisms of Action
Brassinosteroid is a natural plant hormone that primarily regulates hormonal balance within plants to promote growth and development. It stimulates cell division, elongation, and differentiation, while enhancing stress resistance, disease resistance, and cold hardiness. Additionally, it reduces plants’ sensitivity to low temperatures by improving their resilience to chilling.
Aminoethyl ester, a synthetic plant growth regulator classified as an ethylene analog, works by inhibiting endogenous ethylene production. This slows down plant growth and metabolic processes, reducing nutrient demands. Like brassinosteroid, it also improves cold tolerance and disease resistance, lowering plants’ susceptibility to freezing conditions.
2. Suitable Crops
Brassinosteroid is widely used for fruit trees, vegetables, ornamental plants, and medicinal herbs. It enhances fruit development, yield, and quality while boosting stress resistance and disease defense.
Aminoethyl ester is similarly applied to fruit trees, vegetables, ornamental plants, and medicinal crops. Its primary advantage lies in delaying growth rates and metabolic activity, which conserves nutrients and strengthens stress resilience.
3. Application Methods
Brassinosteroid is easy to use: it can be directly sprayed onto leaves or diluted with water for foliar application. excessive use may accelerate growth, potentially compromising fruit development and yield.
Aminoethyl ester also involves foliar spraying or dilution with water, but requires strict adherence to recommended dosages due to its higher active concentration. Overuse can disrupt normal growth patterns.
4. Comprehensive Comparison
Both regulators effectively mitigate frost damage. Brassinosteroid achieves this by optimizing hormonal balance to improve stress resistance, while aminoethyl ester acts by suppressing ethylene to slow growth and metabolic rates. Both reduce low-temperature sensitivity, enhancing freeze tolerance.
The choice between them depends on crop type, growth stage, and environmental conditions. For example:
- Brassinosteroid is preferable for cold-hardy crops like apple trees.
- Aminoethyl ester suits fast-growing, nutrient-demanding crops like rice.
Neither product universally outperforms the other. Brassinosteroid excels in promoting growth and stress resilience, while aminoethyl ester conserves resources and stabilizes metabolism. The optimal selection should align with specific agricultural needs, crop characteristics, and climate challenges.
