Variety traits
Lactuca sativa L.
Uniformity of lettuce determines the degree of plant homogeneity based on morphological and physiological traits, which is critical for simultaneous harvesting.
In the reference 40 varieties crop Lettuce, where this is mentioned in the description.
For lettuce (Lactuca sativa L.), uniformity is characterized by the homogeneity of plants in terms of weight, rosette size, height, leaf count, head density, and stage of market maturity. Assessment is carried out visually or quantitatively, including the use of computer vision systems that analyze canopy projection area and plant compactness.
High uniformity at a level of 90–95% allows for single-pass harvesting, which increases marketability up to 98% and reduces labor costs. Heterogeneity in growth rates is an indicator of failures in irrigation, nutrition, or microclimate management, requiring adjustments to production conditions.
General information about the subject — on the page Uniformity.
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.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Lactuca sativa L. · Lettuce
Nunhems BV (NL)
Lactuca sativa L. · Lettuce
Rijk Zwaan, NL
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
NUNZA B.V.
Lactuca sativa L. · Lettuce
SYNGENTA SEEDS B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
Syngenta Seeds B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
SLUIS & GROOT SEED B.V.
Lactuca sativa L. · Lettuce
ENZA ZADEN
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Lactuca sativa L. · Lettuce
Syngenta Crop Protection AG
Lactuca sativa L. · Lettuce
Syngenta Crop Protection AG
Lactuca sativa L. · Lettuce
WAYCOTT BILL
Lactuca sativa L. · Lettuce
Syngenta Seeds B.V.
Lactuca sativa L. · Lettuce
Nunhems Netherlands B.V.
Lactuca sativa L. · Lettuce
Nunhems B.V., 6083 AB Nunhem