Skip to content
Technical Kisanखेती, तकनीक के साथ
ENहिं
Natural RubberAll seasonsBudded cloneUpdated 28 August 2026

RRII 430

An RRII 400-series clone valued for high yield with a relatively wind-firm, well-branched crown; recommended where wind damage has been a problem for RRII 105.

SeasonAll seasons
Maturity periodPerennial — 6–7 years to first tapping, then tapped for ~25–30 years
Expected yieldHigh, with a wind-firm, well-branched crown
Suitable soilDeep, well-drained laterite / lateritic loam, acidic pH 4.5–6.0

Quick facts

Crop
Natural Rubber
Type
Budded clone
Season
All seasons
Maturity period
Perennial — 6–7 years to first tapping, then tapped for ~25–30 years
Seed rate
Not a seed crop — about 445 budded plants per hectare at 4.9 × 4.9 m spacing
Expected yield
High, with a wind-firm, well-branched crown
Suitable soil
Deep, well-drained laterite / lateritic loam, acidic pH 4.5–6.0
Release
Released by the Rubber Research Institute of India in the RRII 400 series

About this variety

RRII 430 is an RRII 400-series clone that combines high yield with a sturdier, well-branched, relatively wind-firm crown. It is a useful choice on the more wind-exposed sites of the traditional belt, where RRII 105 has been prone to branch snap and wind throw.

Key characteristics

    Plant typeBudded clone
    MaturityPerennial — 6–7 years to first tapping, then tapped for ~25–30 years
    Yield potentialHigh, with a wind-firm, well-branched crown
    Disease resistanceGood general disease tolerance
    SoilDeep, well-drained laterite / lateritic loam, acidic pH 4.5–6.0
    SeasonAll seasons

Sowing & cultivation

  • Sowing timeField-plant with the first steady monsoon rains, roughly June–July
  • Seed rateNot a seed crop — about 445 budded plants per hectare at 4.9 × 4.9 m spacing
  • Spacing4.9 × 4.9 m (about 445 trees/ha)
  • Sowing methodPlant into pre-dug, refilled 75 cm pits on a contour layout, with a leguminous cover crop between the rows
  • IrrigationRainfed in the traditional belt; immature-phase irrigation only in dry non-traditional tracts
  • FertilizerGraduated immature NPK-Mg mixtures in split rounds; a mature-rubber mixture once or twice a year after opening
  • HarvestingOpened at year 6–7 on girth; then alternate-day tapping, refoliation rest and monsoon rain-guarding

Soil & climate

Soil

Suitable soil
Deep, well-drained lateritic soils, including the windier ridge and coastal sites
pH
4.5–6.0

Climate

Climate
A good choice for wind-exposed parts of the traditional belt; its firmer crown reduces branch and wind-throw losses

Yield & maturity

Maturity period

Perennial — 6–7 years to first tapping, then tapped for ~25–30 years

Expected yield

High, with a wind-firm, well-branched crown

Actual yield depends on sowing time, soil, irrigation, weather, seed quality and crop management.

Pest & disease considerations

Major diseases

Management notes

  • Prophylactic abnormal-leaf-fall spray before the monsoon
  • Its wind-firm crown reduces but does not eliminate wind risk — shelter belts still help on the most exposed ridges

Advantages & considerations

Why farmers may choose it

  • Wind-firm, well-branched crown — less branch snap and wind throw than RRII 105
  • High yield
  • Suited to exposed ridge and coastal sites

Things to consider

  • Still needs the pre-monsoon abnormal-leaf-fall spray
  • A traditional-belt clone; not for the cold north-east

Suitable regions

Wind-exposed sites in the traditional belt where RRII 105 has suffered wind damage

  • Kerala
  • Tamil Nadu

Frequently asked questions

When should I choose RRII 430?

On wind-exposed parts of a plantation — ridge tops, coastal edges, gaps in shelter — where RRII 105 or other clones have suffered branch snap and wind throw. RRII 430 has a firmer, better-branched crown while still giving a high yield.

Sourced from: Rubber Board / Rubber Research Institute of India, Rubber Board — clone recommendations. editorial policy.