Variety traits
Lactuca sativa L.
Lettuce yield is the mass of marketable leaves or heads obtained per unit area at the stage of technical maturity.
In the reference 158 varieties crop Lettuce, where this is mentioned in the description.
To evaluate yield, the mass of the marketable portion of plants is measured per 1 m² in protected ground or in t/ha under field conditions. Measurements are taken at the stage of technical maturity, with head varieties accounting for the mass of the head, and leaf varieties accounting for the mass of the entire rosette of leaves, including the percentage of marketable product output.
Productivity indicators are highly dependent on cultivation technology. In spring greenhouses, the yield is 0.4–0.6 kg/m², under intensive hydroponic cultivation it reaches 2.6–3.5 kg/m² or more, while in field conditions, the average values are about 35 t/ha.
General information about the subject — on the page Yield.
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 B.V.
Lactuca sativa L. · Lettuce
Syngenta, NL
Lactuca sativa L. · Lettuce
NUNHEMS
Lactuca sativa L. · Lettuce
Syngenta Seeds B.V.
Lactuca sativa L. · Lettuce
VRIEND RONALD JAN
Lactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
Lactuca sativa L. · Lettuce
Graines Gautier SA (FR)
Lactuca sativa L. · Lettuce
Zaadunie B.V.
Lactuca sativa L. · Lettuce
Cora Seeds, I
Lactuca sativa L. · Lettuce
BEJO ZADEN
Lactuca sativa L. · Lettuce
BEJO ZADEN
Lactuca sativa L. · Lettuce
Semenarna Ljubljana, SI
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
VOLCANI-HAZERA
Lactuca sativa L. · Lettuce
WILLIAN WAYCOTT_ / CYRO PAULINO DA COSTA_
Lactuca sativa L. · Lettuce
RIJK ZWAAN Z.Z. B.V.
Lactuca sativa L. · Lettuce
SVS Holland B.V.
Lactuca sativa L. · Lettuce
Seminis Vegetable Seeds
Lactuca sativa L. · Lettuce
Sativa Rheinau AG (CH)
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Lactuca sativa L. · Lettuce
Seminis Vegetable Seeds
Lactuca sativa L. · Lettuce
S & G Seeds BV (NL)
Lactuca sativa L. · Lettuce
Syngenta Seeds B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)