Frecciarossa
ActiveLactuca sativa L. · Lettuce
MARALDI SEMENTI S.r.l.
IT
4 records
Variety traits
Lettuce Vigor
Lactuca sativa L.
An integral indicator of lettuce seed quality, determining their ability for uniform germination and intensive vegetative mass development at early stages.
In the reference 129 varieties crop Lettuce, where this is mentioned in the description.
To assess lettuce vigor, laboratory methods are employed, such as the slant test, which allows for the analysis of root development speed, and accelerated aging tests, which reveal seed resistance to adverse conditions. Modern breeding utilizes computer vision to measure the projected canopy area and seedling growth dynamics in mm²/day.
High vigor in lettuce is critical for commercial cultivation, as it enables uniform emergence and reduces the need for thinning. Plants with this trait close the canopy faster, which suppresses weeds, and demonstrate higher marketable yields due to active biomass accumulation.
General information about the subject — on the page Vigor.
Varieties of Lettuce mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Floriantine
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Flocoon
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
4 records
Flavius
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Fernandola
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Faction
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
5 records
Extranet
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Exframe
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Excentric
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
El Toro
Protection expiredLactuca sativa L. · Lettuce
Harris Moran Seed Company
NL
3 records
Eglantine
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
8 records
Edwige
WithdrawnLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Deangelia
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Danielita
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
6 records
Dagama
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Crystique
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Cortesita
ActiveLactuca sativa L. · Lettuce
Syngenta UK Ltd
NL
6 records
Cornouaï
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
4 records
Cocarde
ActiveLactuca sativa L. · Lettuce
ReinSaat KG
AT
FR
4 records
Cobain
ActiveLactuca sativa L. · Lettuce
Nunhems B.V., 6083 AB Nunhem
NL
5 records
Cinnabar
Application submittedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Cimbral
ActiveLactuca sativa L. · Lettuce
NUNHEMS
NL
5 records
Cherola
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
5 records
Cassenas
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records