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Saunf (Fennel)RabiOpen-pollinatedUpdated 1 September 2026

RF-101

A Rajasthan release, tall and erect with stout stems and long, bold grain, and the shortest duration of the commonly named fennel varieties — highly resistant to Ramularia blight, the crop's major disease.

SeasonRabi
Maturity period145–160 days
Expected yield~16.0 q/ha (6.5 q/acre)
Suitable soilLoam

Quick facts

Crop
Saunf (Fennel)
Type
Open-pollinated
Season
Rabi
Maturity period
145–160 days
Seed rate
10–12 kg/ha for direct sowing
Expected yield
~16.0 q/ha (6.5 q/acre)
Suitable soil
Loam
Release
Released 2002 · Rajasthan

About this variety

RF-101 is a Rajasthan-bred fennel variety, released in 2002, described as tall and erect with stout stems and long, bold grain. It matures in 145 to 160 days — the shortest duration among the commonly grown named varieties, which matters directly for a crop that already spends five to eight months in the field. Its standout trait is high resistance to Ramularia blight, fennel's major leaf disease, reported consistently in variety-screening trials, with a reported yield of about 6.5 q/acre (roughly 16 q/ha). For a Rajasthan grower on a field with a known blight history, RF-101 is one of the two strongest resistant options, alongside the newer AF-3.

Key characteristics

    Plant typeOpen-pollinated
    Maturity145–160 days
    Yield potential~16.0 q/ha (6.5 q/acre)
    Disease resistanceHighly resistant to Ramularia blight
    SoilLoam
    SeasonRabi

Sowing & cultivation

  • Sowing timeMid-September to mid-October
  • Seed rate10–12 kg/ha for direct sowing
  • Spacing45–60 cm between rows

Soil & climate

Soil

Suitable soil
Well-drained loam

Yield & maturity

Maturity period

145–160 days

Expected yield

~16.0 q/ha (6.5 q/acre)

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

Pest & disease considerations

Advantages & considerations

Why farmers may choose it

  • The strongest, most consistently documented Ramularia blight resistance of the commonly grown varieties.
  • Shortest duration among the named varieties here, reducing the crop's overall weather-risk exposure.

Things to consider

  • Bred and mainly recommended for Rajasthan — check local trial performance before growing it outside that state.

Suitable regions

States this variety is recommended for — check locally, since a state can have more than one recommended zone.

  • Rajasthan

Sourced from: Screening of Fennel Varieties Against Powdery Mildew and Ramularia Blight. editorial policy.