Unik Biotech Research
Biostimulants for Grapes: What They Are and Where They Fit
Grape growers in Maharashtra's Nashik belt manage a long list of inputs across the season. Biostimulants are one of them, and they are often confused with fertilizers or crop protection products. This guide explains what biostimulants are, which types are used in grapes, and how they fit into a wider programme.
What is a biostimulant?
A biostimulant is an input used to support a crop's own growth processes, for example root development, metabolism, flowering or fruit quality. It is different from a fertilizer, which mainly supplies nutrients, and from a crop protection product, which is used against pests and diseases.
Unik Biotech Research keeps these groups apart in its range: "Amino Acids & Biostimulants", "Micronutrient Fertilizers" and "Crop Protection" are separate categories. Thinking in the same way helps when planning a grape programme, because each group does a different job.
Common types of biostimulant
Amino acid products
Amino acids are the building blocks of proteins. AMINORICH is a powder with 80% amino acids covering 18 different types, and its listing says it helps in every stage of crop growth. PROMINO S.L. is a liquid with 18 types of L-based amino acids that also provides nitrogen in organic form. Both are listed for all crops.
Seaweed extract
UNISEARICH is a 100% organic seaweed extract made from Ascophyllum. Its listing notes natural growth hormones (gibberellins), support for strong root development, improved micro-bunch formation and better keeping quality of fruits, and it names grapes among its crops.
Multi-component biostimulants
EXCESS combines 12 types of biostimulants and is described as increasing canopy, leaves, flowers, and the size and quality of fruits. JEMS PLUS provides vitamins, proteins and enzymes for holistic crop nutrition. Both are listed for all crops.
Grape-specific biostimulants for bunch and berry stages
Two biostimulants in the range are listed for grapes only, because they target bunch and berry characteristics.
ROYAL PLUS is made from zinc-containing amino acids and is especially described for grape dipping. Its listed benefits are increased bunch length, better bunch elasticity, prevention of bead sticking and improved overall bunch quality.
LONGER-E is intended for long grape varieties such as Manikchaman, Sonaka and Ganesh. It contains cell elongation nutrients and is listed to increase berry length.
Biostimulants alongside nutrition and protection
A biostimulant does not replace nutrition or disease management. The same range lists micronutrient products that mention grapes, such as UNIBORO ZINC (listed to help prevent short berries in grape bunches), UNICALBOR (listed for flexibility in grape bunches and to suppress fruit cracking) and FERROUS EDDHA for soils where pH is above 7 and iron is not easily available.
For disease management, FAST-40 is described as a systemic product for downy mildew that is widely used in grapes. These are separate from biostimulants and are used for different purposes.
Using these products sensibly
Dosage and application method differ for each product, so follow the guidance on its product page and the product label. Results also depend on the grape variety, soil, weather and how the vineyard is managed, so treat the product descriptions above as what each product is designed to do, not as a guarantee. For advice on a specific vineyard, talk to an agronomist.
Conclusion
Biostimulants support the vine's own growth, while fertilizers and crop protection products handle nutrition and disease. In grapes, general-purpose products such as amino acids and seaweed extract sit alongside grape-specific products for bunch and berry stages. Choosing among them is easier once you are clear about which job each one is meant to do.