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Characterisation and evaluation data

Experiment descriptionTrait nameTrait methodScoreScore link
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] c
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 9
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 8
Lettuce variety descripti[...] Leaf glossiness of upper side1=absent or very weak, 3=[...] 4
Lettuce variety descripti[...] Head shape1 = narrow elliptic, 2 = [...] 1
Lettuce variety descripti[...] Growing conditions1 = indoor, 2 = outdoor, [...] 2
Lettuce variety descripti[...] Leaf blistering1 = absent or very weak, [...] 5
Field trial, sowing date [...] Heart formation-3
Field trial, sowing date [...] HomogeneityAt harvest maturity (3=he[...] 7
Field trial, sowing date [...] Tipburn sensitivityAt harvest maturity1
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Field trial, sowing date [...] Plant diameterAt harvest maturity, rela[...] 5
Field trial, sowing date [...] Leaf shape(1=narrow elliptic,2=el.,[...] 2
Field trial, sowing date [...] Side shoot formation tendAt harvest maturity2
Lettuce variety descripti[...] Leaf attitude at juvenile stage1 = erect, 3 = semi-erect[...] 2
Field trial, sowing date [...] Leaf anthocyanin contentAt harvest maturity1
Field trial, sowing date [...] Leaf venationAt harvest maturity (1= n[...] 1
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 9
Field trial, sowing date [...] Bolting timeCount the days from sowin[...] 101
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 1
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 9
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 9
Field trial, sowing date [...] Head heightAt harvest maturity, rela[...] 4
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 1
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 9
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 1
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 9
Lettuce variety descripti[...] Bolting time(1=very early, ..., 9=ver[...] 9
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 1
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 9
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 1
Lettuce variety descripti[...] Head size1=very small,..,9=very la[...] 6
Lettuce variety descripti[...] Leaf anthocyanin coloration(1=absent, 9=present)1
Lettuce variety descripti[...] Head formation1 = absent, 2 = open head[...] 3
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 9
Lettuce variety descripti[...] Lactuca Mozaic VirusResistance to LMV strain [...] 9
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Field trial, sowing date [...] Seedling anthocyanin cont(1=not present,9=present)1
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 9
Lettuce variety descripti[...] Leaf thickness1 = very thin, 3 = thin, [...] 6
Lettuce variety descripti[...] Plant diameter1=very small,..,9=very la[...] 6
Field trial, sowing date [...] Leaf color(1=yellow, 2=green, 3=gra[...] 2
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Screening (2000-2002) by [...] Bremia lactucaeResistance to B. lactucae[...] 1
Screening (2000-2002) by [...] 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[...] 3
Field trial, sowing date [...] Head leaves overlapAt harvest maturity (1= n[...] 6
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Experiment details

Experiment desciptionDataset remarkExperiment start yearExperiment end yearExperiment report
Field trial, sowing date 15-03, planting date 21-04, planting distance 30x30, 40 plants per object. Location 'de Goor', 23 reference varieties. Mainly butterhead.Phenotypic data CGN1993
Observation of seedcolor.Phenotypic data CGN1997
Screening (2000-2002) by 7 comp. associated with Plantum NL, stand. NAKT method, 30 pl. per race per acc., scoring % resist. plants, in general seperate scores by two diff. comp. per race, using the means when scores not too conflicting.Phenotypic data CGN2000
Screening of TSWV (Tomato Spotted Wilt Virus) by RijkZwaan using mechanical inoculation method (PRI-IPO) on 9 young plants per acc., scoring of symptoms after 1-2 weeks using a scale ranging from 0 (fully resistant) to 4 (susceptible).Phenotypic data CGN2002
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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