Triacontanol 0.1% EW Plant Growth Regulator Uses
Triacontanol 0.1% EW is a CIB-registered plant growth regulator (PGR) based on triacontanol, a naturally occurring long-chain fatty alcohol, used as a foliar spray to boost overall vegetative vigor and yield potential in Cotton, Rice, Chilli, Tomato, Groundnut and Tea. This page lists its mode of action, key benefits and the complete crop-wise recommended dosage as per the approved CIB label.
Which Growth Problem Is This For?
Triacontanol 0.1% EW is a general yield-boosting growth regulator rather than a treatment for one specific symptom, so it is typically sprayed on a fixed schedule through the season to support overall crop vigor. The table below maps the general growth-limiting issues in each crop that this spray schedule is generally used to address.
| Crop | Growth Problem | What You'll See / When to Use |
|---|---|---|
| Cotton | Suboptimal vegetative vigor limiting yield | Plants not reaching full canopy and boll-load potential; sprayed at 45, 65 and 85 days after sowing to support growth through to boll development |
| Rice (Paddy) | Suboptimal tillering and grain-fill vigor | Crop not attaining full vegetative and reproductive vigor; sprayed at 25, 45 and 65 days after transplanting |
| Chilli | General vigor/yield-limiting growth | Plants not reaching full vegetative and fruiting potential; sprayed at 25, 45 and 65 days after transplanting |
| Tomato | General vigor/yield-limiting growth | Plants not reaching full vegetative and fruiting potential; sprayed at 25, 45 and 65 days after transplanting |
| Groundnut | Suboptimal vegetative and pod-yield vigor | Plants not reaching full vegetative and pod-development potential; sprayed at 25, 45 and 65 days after sowing |
| Tea | Slow flush growth limiting pluckable shoot yield | New leaf flush coming slowly on mature bushes; first spray on mature plants, second spray one month after the first, third spray one month after the second |
Mode of Action
Triacontanol is a naturally occurring long-chain fatty alcohol plant growth regulator. As a foliar spray, it is absorbed through the leaves and stimulates photosynthetic activity, chlorophyll content and enzyme activity within the plant, promoting more vigorous cell division and overall vegetative growth. Applied on a fixed schedule through the crop's growth cycle, this translates into a stronger, more productive plant and improved yield potential at harvest.
Features & Benefits
- Boosts overall vegetative vigor and photosynthetic activity, supporting a stronger, more productive plant
- Same proven 3-spray schedule and per-acre dose across Cotton, Rice, Chilli, Tomato and Groundnut, simplifying planning across a mixed-crop farm
- Dedicated Tea schedule tied to bush maturity and flush cycles for sustained leaf-flush yield
- Very low use rate per acre makes it an economical addition to routine foliar nutrition and spray schedules
Recommended Usage of Triacontanol 0.1% EW Plant Growth Regulator
The table below gives the recommended dose, water volume and spray timing per acre for each crop. The CIB label specifies the identical per-acre dose and water volume across all crops; only the number and timing of sprays differs.
| Crop | Dose per Acre | Water Volume per Acre | Application Timing |
|---|---|---|---|
| Cotton | ~101 ml (~0.10 g a.i.) | ~162–202 litres | 3 sprays at 45, 65 and 85 days after sowing |
| Rice (Paddy) | ~101 ml (~0.10 g a.i.) | ~162–202 litres | 3 sprays at 25, 45 and 65 days after transplanting |
| Chilli | ~101 ml (~0.10 g a.i.) | ~162–202 litres | 3 sprays at 25, 45 and 65 days after transplanting |
| Tomato | ~101 ml (~0.10 g a.i.) | ~162–202 litres | 3 sprays at 25, 45 and 65 days after transplanting |
| Groundnut | ~101 ml (~0.10 g a.i.) | ~162–202 litres | 3 sprays at 25, 45 and 65 days after sowing |
| Tea | ~101 ml (~0.10 g a.i.) | ~162–202 litres | 3 sprays: 1st on mature plants, 2nd one month after the 1st, 3rd one month after the 2nd |
Doses above are converted from the official CIB label rate, expressed per hectare (1 ha ≈ 2.47 acres): 0.25 g a.i./ha, 0.25 litre formulation/ha and 400–500 litres water/ha convert to approximately 0.10 g a.i./acre, 101 ml formulation/acre and 162–202 litres water/acre. Always confirm against the current product label before use.
How to Use
- Identify your crop and its current growth stage, and confirm the dose and spray timing from the table above.
- Measure the required quantity of Triacontanol 0.1% EW and pre-mix it in a small quantity of water, then add it to the spray tank filled with the full recommended water volume for your acreage, stirring well.
- Spray as a fine, uniform mist over the foliage using a knapsack, power or boom sprayer, ensuring full leaf coverage on both upper and lower surfaces.
- Apply during the cooler hours of early morning or late evening, and avoid spraying in strong wind or if rain is expected within a few hours, as this can wash off the spray and reduce effectiveness.
- Repeat the remaining sprays at the stage/interval given in the table — do not bunch sprays closer together than recommended, as this does not improve results and only increases input cost.
Precautions & Safety
- Wear appropriate personal protective equipment (gloves, mask, full-sleeve clothing) while mixing and spraying.
- Check compatibility before tank-mixing with other pesticides, fertilisers or micronutrients; do a small jar test first if unsure.
- Store in a cool, dry place away from direct sunlight, heat and out of reach of children and animals; keep the container tightly closed.
- Do not exceed the recommended dose or spray frequency — over-application does not improve results and only adds unnecessary cost.
- Wash hands, face and exposed skin thoroughly with soap after handling, and avoid contaminating ponds, wells or other water sources with spray residue or rinse water.
Brand names mentioned on this page are registered trademarks of their respective owners and are referenced here for identification purposes only; FarmMate is not affiliated with or endorsed by these brands. This page is for general information only — always consult your local agricultural extension office and confirm the current product label before use.