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Red Lady 786 papaya — Taiwan F1 hybrid Photo: placeholder pending image-fill pass

Red Lady 786 papaya — Taiwan F1 hybrid

Red Lady 786 is an F1 hybrid papaya (Carica papaya) developed by Known-You Seed Company of Taiwan and is the most widely planted commercial papaya hybrid in India. The variety is preferred because the seedlots produce a high proportion (around 65-70%) of hermaphrodite plants — which set fruit reliably without separate pollinators — combined with field tolerance to papaya ringspot virus (PRSV) and consistently high productivity. ICAR-IIHR Bengaluru and ICAR-CISH Lucknow have evaluated the hybrid in multi-location trials and it features in package-of-practice recommendations across most papaya-growing states.

Key characteristics

  • Type: F1 hybrid, predominantly hermaphrodite
  • Breeder: Known-You Seed Co., Taiwan
  • Plant: dwarf to semi-dwarf, first fruit at 60-80 cm from ground
  • First harvest: 8-9 months from sowing
  • Productive life: 24-30 months under good management
  • Fruit: oblong to pyriform, 1.5-2.5 kg, deep-red firm pulp, aromatic
  • TSS: 13-14 °Brix
  • Yield: 80-100 t/ha (around 35-45 t/acre) over the full productive cycle, with 40-60 fruits per plant per season
  • PRSV response: tolerant (field tolerance, not immunity)

Cultivation

Seedlings are raised in pro-trays under polyhouse or shade-net conditions and transplanted at 50-60 days. Recommended spacing is 6 ft x 7 ft to 7 ft x 8 ft on raised beds, giving 800-1,200 plants/acre. Drip irrigation and fertigation are standard; ICAR recommendations suggest 200-250 g N, 200-250 g P₂O₅ and 250-300 g K₂O per plant per year, split into 8-12 doses. Mulching with organic residue or plastic film reduces soil temperature stress and weed competition. Deep planting must be avoided; the polybag soil line should remain at the field surface to prevent stem rot (Papaya Stem Rot Planting Depth).

Pest and disease profile

The principal constraint is PRSV (Papaya Ringspot Virus Management); Red Lady's tolerance extends the productive life of the orchard but does not eliminate the need for vector and roguing management. Papaya mealybug (Paracoccus marginatus, Papaya Mealybug Paracoccus) is a major pest in south India, controlled effectively by the introduced parasitoid Acerophagus papayae. Stem rot caused by Phytophthora palmivora, Pythium aphanidermatum and Fusarium spp. is the main soilborne problem. Papaya leaf curl virus and red spider mite are secondary constraints.

Adoption and use

Red Lady 786 dominates commercial papaya plantings in Andhra Pradesh, Telangana, Karnataka, Maharashtra, Gujarat and Tamil Nadu, supplying fresh table fruit to organised retail and wholesale markets. A smaller proportion is processed into juice, fruit bars and papain. The combination of hermaphroditism, PRSV tolerance and high yield is the principal reason for its near-total displacement of open-pollinated varieties such as Pusa Delicious in commercial blocks.

See also: Papaya Taiwan Red Lady, Papaya Ringspot Virus Management, Papaya Stem Rot Planting Depth, Papaya Mealybug Paracoccus.

References

  1. Papaya hybrid evaluation — multi-location trials. ICAR-Indian Institute of Horticultural Research, Bengaluru.
  2. Papaya cultivation — Package of Practices. ICAR-Central Institute for Subtropical Horticulture, Lucknow.