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Characterisation and evaluation data

Experiment descriptionTrait nameTrait methodScoreScore link
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 1
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 1
Lettuce variety descripti[...] Leaf glossiness of upper side1=absent or very weak, 3=[...] 6
Lettuce variety descripti[...] Head shape1 = narrow elliptic, 2 = [...] 3
Lettuce variety descripti[...] Growing conditions1 = indoor, 2 = outdoor, [...] 2
Lettuce variety descripti[...] Leaf blistering1 = absent or very weak, [...] 3
Field trial. Sowing date [...] Heart formation-8
Field trial. Sowing date [...] HomogeneityAt harvest maturity (3=he[...] 7
Field trial. Sowing date [...] Tipburn sensitivityAt harvest maturity2
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 1
Field trial. Sowing date [...] Plant diameterAt harvest maturity, rela[...] 5
Field trial. Sowing date [...] Leaf shape(1=narrow elliptic,2=el.,[...] 6
Field trial. Sowing date [...] Side shoot formation tendAt harvest maturity1
Lettuce variety descripti[...] Leaf attitude at juvenile stage1 = erect, 3 = semi-erect[...] 5
Field trial. Sowing date [...] Leaf anthocyanin contentAt harvest maturity1
Field trial. Sowing date [...] Leaf venationAt harvest maturity (1= n[...] 1
Field trial. Sowing date [...] Bolting timeCount the days from sowin[...] 117
Field trial. Sowing date [...] Head heightAt harvest maturity, rela[...] 3
Lettuce variety descripti[...] Bolting time(1=very early, ..., 9=ver[...] 7
Lettuce variety descripti[...] Leaf margin undulation1 = absent or very weak, [...] 1
Lettuce variety descripti[...] Head size1=very small,..,9=very la[...] 4
Lettuce variety descripti[...] Leaf anthocyanin coloration(1=absent, 9=present)1
Lettuce variety descripti[...] Head formation1 = absent, 2 = open head[...] 3
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 1
Field trial. Sowing date [...] Seedling anthocyanin cont(1=not present,9=present)1
Lettuce variety descripti[...] Leaf thickness1 = very thin, 3 = thin, [...] 7
Lettuce variety descripti[...] Plant diameter1=very small,..,9=very la[...] 4
Field trial. Sowing date [...] Leaf color(1=yellow, 2=green, 3=gra[...] 2
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 1
Lettuce variety descripti[...] Seedling anthocyanin cont(1=absent, 9=present)1
Lettuce variety descripti[...] Size of leaf blisters1 = very small, 3 = small[...] 4
Field trial. Sowing date [...] Head leaves overlapAt harvest maturity (1= n[...] 6
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 1
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 1
Field trial. Sowing date [...] Seed color(1=white,2=black,3=varieg[...] 2
Lettuce variety descripti[...] Seed color1 = white, 2 = yellow, 3 [...] 3
Field trial. Sowing date [...] Leaf color intensity(3=light, 5=medium, 7=dar[...] 5
Lettuce variety descripti[...] Leaf attitude at harvest maturity1 = erect, 3 = semi-erect[...] 5
Field trial. Sowing date [...] Leaf blisteringAt harvest maturity5
Field trial. Sowing date [...] Head shapeAt harvest maturity, in l[...] 3
Field trial. Sowing date [...] Leaf margin undulationAt harvest maturity2
Lettuce variety descripti[...] Time period until marketable maturity(1=very early, ..., 9=ver[...] 7
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 1
Field trial. Sowing date [...] Leaf divisionAt harvest maturity (1=0,[...] 1
Field trial. Sowing date [...] Seedling cotyledon shape(1=narrow elliptical, 2= [...] 2
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Experiment details

Experiment desciptionDataset remarkExperiment start yearExperiment end yearExperiment report
Field trial. Sowing date 16/3, planting date 26,27/4/94. 23 reference varieties. Location de Goor. Planting distance 30x30. Mainly butterhead, grasse and stalk lettuce.Phenotypic data CGN1994
Lettuce variety descriptions made available by the Netherlands Inspection Service for Horticulture up and until 2013. Descriptions are included for varieties that matched the CGN accession name.Phenotypic data CGN2013
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