Limambo

Lettuce

Variety Description

Variety used for comparison: 'Limassol'

Summary: At harvest maturity, the plant of 'Limambo' has a small diameter whereas the plant of 'Limassol' has a medium sized diameter. The degree of undulation of the leaf margin of 'Limambo' is strong whereas it is strong to very strong for 'Limassol'. The plants of 'Limambo' are not resistant to Bremia lactucae isolates Bl:33EU and Bl:35EU whereas the plants of 'Limassol' are resistant to Bremia lactucae isolates Bl:33EU and Bl:35EU.

Description:

PLANT: Lollo type, glass house and open culture type, small diameter, absent or weak degree of overlapping of upper part of leaves, few to medium number of leaves, no head formation, medium degree of axillary sprouting, bolting begins very late under long day conditions, absent or very weak intensity of fasciation at flowering stage

LEAF: medium thickness, semi-erect attitude at harvest maturity, absent or very few divisions, medium oblate to broad obtrullate shape, rounded tip, flat in longitudinal section, absent or very weak anthocyanin colouration, yellowish green leaf, light to medium intensity of green colouration, weak glossiness on upper side, medium degree of blistering, very small to small blisters, strong undulation of margin, flabellate (fan shaped) venation
INCISIONS OF MARGIN ON APICAL PART OF LEAF: shallow, dense to very dense, bidentate type, very shallow secondary incisions of margin

SEED: white seed coat

DISEASE REACTIONS: resistance to Bremia lactucae isolates Bl: 16EU, Bl: 17EU, Bl: 20EU, Bl: 21EU, Bl: 22EU, Bl: 23EU, Bl: 24EU, Bl: 25EU, Bl: 26EU, Bl: 27EU, Bl: 29EU, Bl: 30EU, Bl: 31EU present; resistance to Lettuce mosaic virus (LMV) pathotype II present; resistance to Nasonovia ribisnigri biotype Nr: 0 present; resistance to Bremia lactucae isolates Bl: 33EU and BL: 35EU absent

Origin & Breeding History: 'Limambo' (breeder's reference 86-LE2741 RZ) was developed from an initial cross between proprietary parent lines conducted in the Netherlands in 2015. Selection criteria included disease resistance, pest resistance as well as leaf characteristics. The variety was stable after six generations of pedigree selection. In August 2019, 86-LE2741 RZ was selected in Dinteloord, Netherlands, and designated as 'Limambo'.

Tests & Trials: The detailed description of 'Limambo' is based on the UPOV report of Technical Examination, application number SLA4699, purchased from the Naktuinbouw in Roelofarendsveen, Netherlands. The trial was conducted by the Naktuinbouw in Roelofarendsveen, Netherlands in 2022.

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Lettuce: 'Limambo'

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Lettuce: Reference variety 'Limassol'