Regeneration of cereals

Seed dormancy

  • Cultivated cereals: none.
  • Wild cereals: fresh grains may germinate irregular or not at all.

In many cases germination is normal after a storage period of about a year. For some accessions this period is longer. Dormancy can be broken by periods of alternate temperatures.


Cultivated winter cereals are sown in October and are vernalized under natural conditions in the field during the winter.
Winter type wild cereals are sown in trays in January and after germination the trays are placed in an unheated greenhouse for at least six weeks.

Crop phenology

Phen cereals.jpg


  • Cultivated winter types (barley, wheat, oats): October.

  • Cultivated spring types (barley, wheat, oats): March.

Grains are sown at a density of 300 seeds per m2, with 1.25 m2 sown. The distance between the rows is 25 cm. When an accession is susceptible to lodging, the plot is being supported by a rope around canes at the four corners.

Wild cereals are sown (spring types) or planted (winter types) in pots, in the greenhouse, 30-64 plants per accession. The plants are supported by 2-4 rings with 30 cm in diameter. During flowering, the ears are wrapped up in perforated polythene bags in order to collect the seeds which scatter as soon as ripe


  • Winter types: July.
  • Spring types: August.

The grains of cultivated cereals are harvested using a small combine, or by hand and stored in bags together with the fieldnumber and pre dried on a drying floor. Accessions with plants which do not ripen at the same time are harvested twice manually. The wild species are harvested by hand by cutting the ears, wrapped up in the bags and predried on a drying floor or drying chamber.

Pest and disease control

  • Preventive: Seed treatment against soil pathogens.
  • Non-preventive: Mildew (Erysiphe graminis)