Variety traits

Vegetation period — Opium poppy

Papaver somniferum L.

The vegetation period of the opium poppy is calculated in days from full emergence to biological seed maturity and varies from 85 to 135 days.

In the reference 12 varieties crop Opium poppy, where this is mentioned in the description.

The duration of the vegetation period of the opium poppy in variety trials is recorded from the date of full emergence to the onset of biological seed maturity. In specialized studies aimed at producing green capsules, the count may be taken up to the technical maturity of the fruits.

The range of the vegetation period for this crop is from 85 to 135 days. The duration of this interval directly determines the planning of sowing and harvesting dates, as poppy development is sensitive to temperature conditions: the optimal temperature for the emergence–flowering phase is 10–15 °C, and for the flowering–maturation period, it is 20–25 °C.

Agrotechnological measures take into account the resistance of seedlings to spring frosts down to 3–4 °C, which allows for the efficient use of the available vegetation period with early sowing dates. Furthermore, the duration of the development period correlates with the phases of alkaloid accumulation in the milky sap of the capsules.

General information about the subject — on the page Vegetation period.

Sources7

Varieties of Opium poppy mentioned in the description

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.