PHENOTYPIC CHANGES IN DIFFERENT SPINACH VARIETIES GROWN AND SELECTED UNDER ORGANIC CONDITIONS - Organic Agricultural Practices - page 256

TABLE 2: Origin of the varieties tested by each farmer the first year of the experiment.

Variety name Seed bank or

origin

Accession
number

Year of
registration
if registered

Name of the
farmer if chosen

Hollandia CGN 9421 1943

Verbeterde Hollandia CGN 9420 1943 MC

Vroeg Reuzenblad CGN 9644 1943

Breedblad Scherpzaad Zomer CGN 9400 1943

Proloog CGN 9440 1961

Resistoflay CGN 9442 1963

Duetta CGN 14170 1962

Pre Vital CGN 9468 1962

Spinoza CGN 9451 1963

Virtuosa CGN 9466 1963

Amsterdams Reuzenblad CGN 14179 1943

Advance CGN 14181 1955

Viking CGN 9463 1943 MC

Nobel CGN 14173 1943

D'été de Rueil La semeuse MC and FD

Viking-Matador Germinance MC

Matador foncé GEVES 10595

Monstrueux de Viroflay GEVES

Alwaro GEVES 13054 MC

Supergreen GEVES 14601 MC

Monarch Long Standing GEVES 14751 AVO

When the farmer had chosen several varieties, they were multiplied
individually under cages in order to avoid intercrossing. On-farm, the plot
size was at least 100 plants and 5 m² per variety. Selection was carried
out differently according to the farmer, and could include the elimina-
tion of unsuitable plants, the selection of plants corresponding to a given
type, or only through natural selection in their environmental conditions.
Three farmers participated in the experiment (MC, FD and AVO). All of
them sowed the spinach in spring the fi rst year and two of them (MC and
FD) decided to sow the varieties in winter for the second year because,