Dora Agri is a professional supplier and exporter of Harpin Protein-based products (plant elicitors of disease resistance), with five years of export experience. Our primary markets include Central & South America and Western Europe, where we collaborate with powerful distributors.
Dora Immune is our exclusive Harpin protein-based plant health regulator. This product, containing Harpin and other natural organic materials, acts as a plant health promoter by activating the plant’s immune system. This activation triggers growth and defense genes.
When Dora Immune comes into contact with plant receptors on seeds, roots, and leaves, it triggers an early warning system known as “Systemic Acquired Resistance,” leading to increased plant yields and health.
Target Crops: We focus on economic crops such as cannabis, tobacco, asparagus, avocado, mango, grapes, citrus, blueberries, kiwi, apples, plums, cherries, avocados, nectarines, etc.
If you are interested in purchasing Harpin protein products, please feel free to email us at darren@doraagri.com or contact us via WhatsApp.
Mechanism of Harpin Protein
As the diagram illustrates, Dora Immune functions by encouraging plant growth under various stress conditions, including fungal attacks.
Harpin does not directly impact pathogens nor does it enter the plant. Instead, it binds to receptors on the plant leaf, thereby initiating physiological processes within the plant.
Features of Harpin Protein
- Increases plant yield and quality
- Improves nutrients uptake ability
- Help crop defend against plant diseases
- Extend fruits shelf-life 5-7 days
- Increase fruit sugars 10%-25%
- Increase calcium uptake by＞20%
Specification of Harpin Protein
| Product Name | Dora Immune | Ingredients | Harpin Protein |
| Appearance | Yellow Liquid | pH | 6.0-7.0 |
| Density | 1.14g/ml | Shelf Life | 2 years |
Applications of Harpin Protein
1.Induce Crops to Prevent Diseases
elicitor
2. Increase Plant Immunity
3. Stimulate Plant Growth
How to use Harpin Protein
1. Foliar Application
Use 125 ml of Dora Immune per 100 L of water. Generally, apply 3-5 times during the germination period, seedling stage, flowering period, and the last week before maturation.
2. Seed Soaking
Soak your seeds or tubers in a Dora Immune solution diluted 1000 times. Allow them to dissolve in the solution for at least 30 minutes, shake, then soak your seeds or tubers for 10 minutes before planting.
3. Mixing
1. Dora Immune can be mixed with other products (pH 6-7) and should be used within 2-6 hours after mixing.
2. When mixed with products containing heavy metal ions, use within 1 hour, as heavy metal ions can adsorb the harpin protein, affecting its ability to interact with plant receptors.
Our Experiment on Harpin Protein
1. On Tomato
In our study, the control check group revealed tomato plants with diseased and withered leaves, highlighting the initial health challenges faced. However, a remarkable transformation occurred within 40 days of applying our Harpin protein treatment. This innovative solution not only revitalized the tomato plants but also significantly improved their overall health and vitality. Our Harpin protein emerges as a game-changer in plant health, offering a potent remedy for revitalizing distressed tomato plants. This breakthrough underscores the effectiveness of Harpin protein in combating plant diseases and promoting vigorous growth, making it an essential asset for gardeners and agricultural professionals alike.
2. On Cucumber
3. On Melon
4. On Coffee
This case study highlights actual client feedback on our Harpin protein. Prior to using our product, as seen in the CK group photo, the coffee farm produced small and substandard coffee cherries. These fruits were in poor condition, unevenly ripened, with a majority remaining green and some exhibiting browning or rotting, which suggested potential disease or nutrient deficiency. Following the application of our Harpin protein, there was a notable improvement; the coffee cherries became healthy and vibrant, turning a rich red color.
Want your farm or plants to get healthier and better just like our cases shown above? Contact Dora for the Harpin Protein!
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