Triacontanol 0.05% GR Plant Growth Regulator Uses
Triacontanol 0.05% GR is a CIB-registered plant growth regulator (PGR) based on triacontanol, a naturally occurring long-chain fatty alcohol, formulated as soil-application granules to support stronger root establishment and more vigorous early growth in Cotton, Rice, Chilli, Tomato and Groundnut. This page lists its mode of action, key benefits and the complete crop-wise recommended dose as per the approved CIB label.
Which Growth Problem Is This For?
Triacontanol 0.05% GR is applied to the soil before sowing or transplanting as a preventive growth booster rather than a curative spray for a visible symptom. The table below maps the early-growth issues in Cotton, Rice, Chilli, Tomato and Groundnut that this soil treatment is generally used to get ahead of.
| Crop | Growth Problem | What You'll See / When to Use |
|---|---|---|
| Cotton | Weak seedling establishment | Thin, uneven stand and slow early growth after sowing; granules mixed into the soil 2-3 days before sowing to support root and shoot vigor from germination onward |
| Rice (Paddy) | Poor early tillering and root vigor | Transplanted seedlings slow to establish with a weak root system; granules mixed into the soil 2-3 days before transplanting |
| Chilli | Slow seedling growth after transplanting | Transplants showing stunted early growth and delayed canopy build-up; granules applied to the soil 2-3 days before transplanting |
| Tomato | Uneven germination-stage growth | Variable seedling size and slow early canopy development; granules applied to the soil 2-3 days before transplanting |
| Groundnut | Weak early root and shoot development | Slow germination-stage growth that can carry through to weaker pod set later; granules mixed into the soil 2-3 days before sowing |
Mode of Action
Triacontanol is a naturally occurring long-chain fatty alcohol plant growth regulator. Applied as soil-mixed granules ahead of sowing/transplanting, it is taken up by the developing root system and influences cell division and elongation, chlorophyll synthesis and enzyme activity within the plant. This promotes stronger, more extensive early root development and more vigorous initial vegetative growth, giving the crop a better foundation to build yield on through the rest of the season.
Features & Benefits
- Supports stronger root establishment and more uniform seedling vigor right from germination/transplanting
- Applied once to the soil before sowing/transplanting — no repeat spraying required
- Same proven per-acre dose across Cotton, Rice, Chilli, Tomato and Groundnut, simplifying planning across a mixed-crop farm
- Very low active-ingredient quantity per acre makes it an economical addition to standard pre-sowing/pre-transplanting field preparation
Recommended Usage of Triacontanol 0.05% GR Plant Growth Regulator
The table below gives the recommended dose per acre for each crop. The CIB label specifies the identical dose across all five crops.
| Crop | Active Ingredient per Acre | Formulation (Granules) per Acre | Application Timing |
|---|---|---|---|
| Cotton | ~5.1 g | ~10.1 kg | Mix into soil 2-3 days before sowing |
| Rice (Paddy) | ~5.1 g | ~10.1 kg | Mix into soil 2-3 days before transplanting |
| Chilli | ~5.1 g | ~10.1 kg | Mix into soil 2-3 days before transplanting |
| Tomato | ~5.1 g | ~10.1 kg | Mix into soil 2-3 days before transplanting |
| Groundnut | ~5.1 g | ~10.1 kg | Mix into soil 2-3 days before sowing |
Doses above are converted from the official CIB label rate, expressed per hectare (1 ha ≈ 2.47 acres): 12.5 g a.i./ha and 25 kg formulation/ha convert to approximately 5.1 g a.i./acre and 10.1 kg formulation/acre. This is a granular soil-broadcast application, not a foliar spray — the CIB label does not specify a water-dilution volume or a pre-harvest interval (PHI) for this formulation, since it is applied to the soil at sowing/transplanting, well ahead of harvest. Always confirm against the current product label before use.
How to Use
- Identify your crop and confirm the per-acre granule quantity from the table above (the same dose applies uniformly across Cotton, Rice, Chilli, Tomato and Groundnut).
- Measure out the required quantity of granules for the total area to be treated.
- Mix the granules thoroughly and evenly into the soil of the field or nursery bed 2-3 days before sowing or transplanting.
- Ensure the soil has adequate moisture at the time of application so the granules can begin acting in the root zone ahead of sowing/transplanting.
- Proceed with normal sowing or transplanting 2-3 days after the granules have been mixed into the soil.
Precautions & Safety
- Wear gloves and a mask while handling and mixing the granules into the soil.
- Store in a cool, dry place away from direct sunlight and moisture, out of reach of children and animals, with the container tightly closed.
- Do not exceed the recommended per-acre quantity — over-application does not improve results and only adds unnecessary cost.
- Apply only to soil intended for sowing or transplanting; avoid spilling granules near ponds, wells, drains or other water sources.
- Wash hands and any exposed skin thoroughly with soap after handling.
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.