Elemental
| Denomination: | 'Elemental' |
|---|---|
| Botanical Name: | Lactuca sativa |
| Applicant/Holder: |
Nunhems B.V. Napoleonsweg 152 Nunhem 6083 AB Netherlands |
| Breeder: |
Johan van Zee, Nunhems B.V., Nunhem, Netherlands |
| Agent in Canada: |
Aventum IP Law LLP 104-555 Legget Drive, Tower A Ottawa, Ontario K2K 2X3 Canada Tel: 613-232-5300 Ext 321 |
| Application Date: | 2023-01-03 |
| Provisional Protection:: | 2023-01-03 |
| Application Number: | 23-11158 |
| Grant of Rights Date: | 2024-05-06 |
| Certificate Number: | 7104 |
| Grant of Rights Termination Date: | 2044-05-06 |
Variety Description
Variety used for comparison: 'Akiens'
Summary: The plants of 'Elemental' have a small to medium diameter while those of 'Akiens' has a small diameter. The leaf of 'Elemental' is greyish green with a weak to medium degree of blistering while that of 'Akiens' is green with a medium to strong degree of blistering. The time of harvest maturity for the plants of 'Elemental' is late while that of 'Akiens' is medium.
Description:
PLANT: gem type, in the open field culture, small to medium diameter, medium degree to overlapping of upper part of leaves, absent or weak axillary sprouting, late harvest maturity, time of beginning of bolting is medium under long day conditions, weak intensity of fasciation at flowering stage
HEAD: small to medium sized, narrow oblate shape in longitudinal section, medium to dense
LEAF: medium thickness, erect to 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, medium to dark greyish green, weak to medium glossiness of upper side, weak to medium blistering, medium sized blisters, venation is not flabellate
LEAF BLADE MARGIN: absent or very weak degree of undulation
SEED: black seed coat
DISEASE REACTIONS: resistance to 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, Bl:33 EU, Bl:35 EU, Lettuce mosaic virus (LMV) pathotype II and Nasonovia ribisnigri (Nr) biotype Nr:0 present
Origin & Breeding History: 'Elemental' (breeder code NUN 09131 LTL) originated from a controlled self-pollination conducted in 2010 in Gravenzande, Netherlands. The criteria used for making selections were plant shape, open plant type, leaf shape and resistance to bolting, Bremia lactucae and aphids. The variety was stable after 7 rounds of selection and self pollination in 2016 and it later became known as 'Elemental'.
Tests & Trials: The detailed description of 'Elemental' is based on the UPOV report of Technical Examination, application number SLA4564, purchased from the Naktuinbouw in Roelofarendsveen, Netherlands. The trial was conducted by the Naktuinbouw in Roelofarendsveen, Netherlands from 2021 to 2022.
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Lettuce: 'Elemental'
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Lettuce: Reference variety 'Akiens'
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