Variety traits

Abundance and duration of potato flowering

Solanum tuberosum L.

For potatoes, there are no uniform quantitative indicators for the abundance or duration of flowering, as this trait is not critical for the economic value of a cultivar.

In the reference 18 varieties crop Potato, where this is mentioned in the description.

In state variety testing protocols for potatoes, the flowering phase is recorded only as a phenological observation, which allows for the determination of the growing season duration and the maturity group of the cultivar. Standardized units for assessing flowering intensity, such as scores or the number of flowers per plant, are not provided for in official agronomic practice.

Biologically, the flowering period coincides with the phase of maximum haulm accumulation, after which the redistribution of substances to the tubers occurs. Flowering intensity is highly dependent on external weather conditions, particularly temperature and humidity, which affect pollen fertility; furthermore, modern breeding programs allow for the existence of virtually non-flowering forms.

Scientific data confirm the absence of a direct correlation between the abundance of flowering and tuber yield. The flowering and tuberization phases are relatively independent processes; therefore, flowering indicators are not used when selecting a cultivar for production or for making agronomic decisions.

General information about the subject — on the page Abundance and duration of flowering.

Sources8

Varieties of Potato 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.