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41-CR2283 RZ

By

Rijk Zwaan

Mini Crunchy Cos Lettuce

  • Baby cos for open field and hydroponic production
  • Sweet and crisp leaves
  • Suitable for whole head or whole leaf processing
  • Good vigour and size in winter
  • Strong against bolting and tip-burn in summer
  • Can be machine harvested when planted at high populations
  • Contains the “knox” trait, extending the shelf-life
  • Suitable for year-round production in most areas
  • Resistances: HR Bl:29-38,40EU/Fol:1/Nr:0.

Additional comments and cultural notes
Resistance key:

  • HR = High Resistance IR = Intermediate Resistance
  • Bl = Bremia (Downy mildew)
  • Nr = Nasanovia aphid
  • LMV = Lettuce mosaic virus
  • Fol = Fusarium oxysporum f. sp. conglutinans

Rabello RZ

By

Rijk Zwaan

Cos Lettuce

Mini Type

  • Baby cos for open field and hydroponic production
  • Very strong against bolting and tip-burn
  • Suitable for twin pack or whole head processing
  • Best suited to Spring, Summer and Autumn harvest
  • Disease Resistance HR Bl:29-38, 40EU/Fol:1/Nr:0.

Additional comments and cultural notes
Disease Resistance Key:

Tendita RZ

By

Rijk Zwaan

Cos Lettuce

  • Sweet and crisp leaves with a crunchy texture
  • Mini cos type with a high leaf count suitable for processing as separate leaves. Can also be harvested as whole heads for twin packs
  • Strong against bolting
  • Suitable for hydroponics and outdoor soil cultivation
  • Can be grown year-round but performs better in warmer temperatures, spring to autumn
  • Disease Resistance HR Bl:29, 30, 33-40EU/Fol:1/Nr:0.

Additional comments and cultural notes
Disease Resistance Key:

  • HR = High Resistance IR = Intermediate Resistance
  • Bl = Bremia lactucae (Downy mildew)
  • Nr = Nasanovia aphid
  • Fol = Fusarium oxysporum f.sp. lactucum

AUVONA RZ

By

Rijk Zwaan

Cos Lettuce

  • Open-heart type for Spring, Summer and Autumn harvest
  • Solid mid rib with less pinking and longer shelf life
  • Crisper leaf texture than previous open heart types with more leaf blister and “crunch”
  • Very uniform leaf length and high processing recoveries
  • Strong narrow light green leaves with darker outside leaves
  • Broad plant base
  • Sweet flavour
  • Disease Resistance HR Bl:32EU/Fol:1

Additional comments and cultural notes
Disease Resistance Key

  • HR = High Resistance IR = Intermediate Resistance
  • Bl = Bremia lactucae (Downy mildew)
  • Fol = Fusarium oxysporum f.sp. lactucum

BLANES RZ

By

Rijk Zwaan

Cos Lettuce

Mini Gem Type

  • Dark green leaves
  • Best suited to baby Cos Hearts but can be used for loose leaves
  • Very good flavour, sweet
  • Best suited to Autumn, Winter and Spring production
  • Slow bolting relative to other mini hearting types
  • Disease Resistance HR Bl:32EU/Fol:1 IR LMV:1.

Additional comments and cultural notes
Disease Resistance Key:

  • HR = High Resistance IR = Intermediate Resistance
  • Bl = Bremia lactucae (Downy mildew)
  • LMV = Lettuce Mosaic Virus
  • Fol = Fusarium oxysporum f.sp. lactucum

CHICARITA RZ

By

Rijk Zwaan

Cos Lettuce

  • Smooth strong elongated leaves with a crisp crunchy texture
  • Mini Cos type that can be harvested as whole heads or processed as separate leaves
  • Strong against bolting
  • Suitable for hydroponics and outdoor soil cultivation
  • Can be grown year round
  • Very interesting alternative to Iceberg
  • Disease Resistance HR Bl:29, 30, 33-35, 37, 38, 40EU/Fol:1/Nr:0 IR LMV:1.

Additional comments and cultural notes
Disease Resistance Key:

  • HR = High Resistance IR = Intermediate Resistance
  • Bl = Bremia lactucae (Downy mildew)
  • Nr = Nasanovia aphid
  • LMV = Lettuce Mosaic Virus
  • Fol = Fusarium oxysporum f.sp. lactucum

MADELONA RZ

By

Rijk Zwaan

Cos Lettuce

Open-heart type for Spring, Summer and Autumn harvest

  • Very similar to Auvona with the added benefit of wider resistances to Downy Mildew and Nasonovia Aphid
  • Solid mid rib with less pinking and longer shelf life
  • Sweet flavoured dark green leaves with slight blister and “crunch” to texture
  • Very good recovery rate when processing for whole leaves or Caesar salads
  • Dual purpose for processing and sleeving for fresh market
  • Disease Resistance HR Bl:29-34, 36, 39, 40EU/Nr:0 IR Ss(Rs).

Additional comments and cultural notes
Disease Resistance Key:

  • HR = High Resistance IR = Intermediate Resistance
  • Bl = Bremia lactucae (Downy mildew)
  • Nr = Nasanovia aphid
  • SS(RS) = Sphingomonas suberifacieus (Corky Root)

PATRONA RZ

By

Rijk Zwaan

Cos Lettuce

Open heart type for Winter harvest

  • Solid mid rib with less pinking and longer shelf life
  • Best suited to Autumn, Winter and Spring harvest. Strong against twisting. Complements Auvona for year round production
  • Very uniform leaf length and high processing recoveries
  • Strong narrow, light green leaves with darker outside leaves
  • Disease Resistance HR Bl:29-34, 36, 39, 40EU/Nr:0 IR LMV:1.

Additional comments and cultural notes
Disease Resistance Key:

  • HR = High Resistance IR = Intermediate Resistance
  • Bl = Bremia lactucae (Downy mildew)
  • Nr = Nasanovia aphid
  • LMV = Lettuce Mosaic Virus

RAFAEL RZ

By

Rijk Zwaan

Cos Lettuce

Mini Type

  • Versatile variety for year round production
  • Small cos for whole leaf processing. Leaves are easy to separate
  • Dark green glossy leaf colour
  • Good shelf life and great flavour
  • Suitable for hydroponics and outdoor soil cultivation
  • Can be grown for cos hearts or whole heads
  • Disease Resistance HR Bl:29, 30, 33-40EU/Fol:1/Nr:0.

Additional comments and cultural notes
Disease Resistance Key:

  • HR = High Resistance IR = Intermediate Resistance
  • Bl = Bremia lactucae (Downy mildew)
  • Nr = Nasanovia aphid
  • Fol = Fusarium oxysporum f.sp. lactucum

Salvius RZ

By

Rijk Zwaan

Cos Lettuce

Strong Winter Vigour

  • Large frame and dark green leaves
  • Medium blistered or savoyed leaves
  • Fast growing tall plants
  • Good vigour and disease resistance through cool wet weather
  • Disease Resistance HR Bl:32EU/Nr:0 IR Ss(Rs)

Additional comments and cultural notes
Disease Resistance Key:

  • HR = High Resistance IR = Intermediate Resistance
  • Bl = Bremia lactucae (Downy mildew)
  • Nr = Nasanovia aphid
  • Ss(Rs) = Sphingomonas suberifacieus (Corky Root)