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Caravel

Lettuce

Denomination: 'Caravel'
Botanical Name: Lactuca sativa
Applicant/Holder: Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Burgemeester Crezeelaan 40
Postbus 40, 2678 ZG
De Lier
2678 KX
Netherlands
Breeder: Bram Koebrugge, Rijk Zwaan Zaadteelt en Zaadhandel B.V., De Lier, Netherlands
Agent in Canada: Rijk Zwaan Canada Ltd.
1008 Mersea Road 7
Leamington, Ontario
N8H 3V8
Canada
Tel: +1 519 322 0442
Application Date: 2021-01-29
Provisional Protection:: 2021-01-29
Application Number: 21-10416
Grant of Rights Date: 2022-02-10
Certificate Number: 6528
Date rights surrendered: 2024-01-26

Variety Description

Variety used for comparison: 'Yacht'

Summary: The plant of 'Caravel' is larger in diameter than the plant of 'Yacht'. The leaf blade of 'Caravel' is dark green while that of 'Yacht' is medium to dark green.

Description:

PLANT: multileaf Batavia type, open type culture, small diameter, absent or weak degree to overlapping of upper part of leaves, many leaves, no head formation, absent or very weak axillary sprouting, begins bolting very late under long day conditions, very strong intensity of fasciation at flowering stage

LEAF: thin, semi-erect attitude at harvest maturity, absent or very few divisions, obovate shape, rounded tip, flat in longitudinal section, absent or very weak intensity of anthocyanin colouration, dark green, weak glossiness of upper side, very weak to weak blistering, very small to small blisters
LEAF BLADE: medium to strong undulation of margin, venation is flabellate
INCISIONS OF MARGIN ON APICAL PART OF LEAF: very shallow to shallow, very shallow secondary incisions of margin, medium density, irregularly dentate

SEED: black seed coat

DISEASE REACTIONS: resistance to Downy mildew (Bremia lactucae) isolates Bl:16EU, Bl:17EU, Bl:20 EU, Bl:21 EU, Bl:22 EU, Bl:23 EU, Bl:24 EU, Bl:25 EU, Bl:26 EU, Bl:27 EU, Bl:29 EU, Bl:30 EU, Bl:31 EU present; resistance to Lettuce mosaic virus (LMV) pathotype II present; resistance to Nasonovia ribisnigri biotype Nr:0 present; no resistance to Downy mildew (Bremia lactucae) isolate Bl:33 EU

Origin & Breeding History: 'Caravel' (experimental designation 79-530 RZ) originated from a cross conducted in the summer of 2009 in Fijnaart, Netherlands. The criteria used for making selections were dark green leaf colour and vigour, combined with resistance to Downy mildew (Bremia lactucae) and Lettuce mosaic virus (LMV-1). The variety was stable after 8 generations and it later became known as 'Caravel'.

Tests & Trials: The detailed description of 'Caravel' is based on the UPOV report of Technical Examination, application number SLA3821, purchased from the Naktuinbouw in Roelofarendsveen, Netherlands. The trial was conducted by the Naktuinbouw in Roelofarendsveen, Netherlands in 2018.

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Caravel
Lettuce: 'Caravel' (top) with reference variety 'Yacht' (bottom)

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