Agriculture Reference
In-Depth Information
TABLE 3:
Selection criteria of each farmer for each variety and varieties' changes.
Farmer
Criteria of selection
Variety se-
lected
Significant changes compared to original
version
AVO
Ideotype: plants late to
bolt and flower
Selection method: trans-
planting only the latest
plants
“Monarch
Long Stand-
ing”
Shorter petioles
Less bolting and flowering on May 29
FD
Ideotype: nothing, wish
of increasing diversity
Selection method: no
selection in the field but
elimination of the spiny
seeds after harvest ('Eté
de Rueil' is supposed to
be a variety with non-
spiny seeds)
“Eté de Rueil”
More anthocyanin
More acute leaves
More bolting and flowering on May 22
Less bolting and flowering on May 29
MC
Ideotype: plants with
big, dark green, narrow,
spear shaped and smooth
leaves
Selection method:
negative selection by
elimination of the plants
not sufficiently of the
type wished
“Eté de Rueil”
More « yellow » leaves (chromameter)
More anthocynin on the petiole
More acute leaves
Thicker leaves
More bolting and flowering on May 22
and 29
“Supergreen”
Narrower leaves
More erect leaves
More bolting on June 4
More flowering on May 29
“Verbeterde
Hollandia”
More « yellow » and « green » leaves
(chormameter)
More flowering on May 29
“Viking”
More « yellow », « greener » and lighter
leaves (chromameter)
Less erect leaves
More blistered leaves
“Viking
Matador”
Longer leaves
More bolting on May 22
