Krischan
Application submittedLactuca sativa L. var. capitata L. · Head lettuce
DE
1 record
Cultivation
Open-field cultivation — head lettuce
Lactuca sativa L. var. capitata L.
Growing head lettuce in the open field requires strict control over temperature and light regimes to prevent premature bolting. The most important factors for success are the selection of varieties based on day length and adherence to the optimal plant spacing.
In the reference 22 varieties crop Head lettuce, where this is mentioned in the description.
Head formation in this crop is a specific reaction to the slowing of the apical bud growth. Under unfavorable conditions, such as high temperatures or long day length, plants are prone to an early transition to the flowering phase. Head-forming varieties are more demanding of light intensity than leaf varieties; therefore, even minor shading prevents the leaves from closing tightly into a head.
Agrotechnology in the open field excludes dense planting: the placement density ranges from 9 to 16 plants per square meter depending on variety characteristics. When using the seedling method, it is critical to avoid deep burial of the root collar in the soil, which delays development. Variety selection must strictly correspond to the growing season due to differences in the hybrids' response to the photoperiod.
General information about the subject — on the page Open field.
Varieties of Head lettuce 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.
Królowa Lata LEG
Application submittedLactuca sativa L. var. capitata L. · Head lettuce
PL
1 record