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Cos lettuce "Romana Mortarella verde d Inverno" (Roman lettuce)
Lactuca sativa var. capitata
1.79€
Ex Tax: 1.45€
Ex Tax: 1.45€
Roman lettuce (Cos lettuce, Romaine) "Romana Mortarella verde d'Inverno".
Romaine lettuce (or Cos) belongs to the heading subspecies of lettuce. The head of Roman lettuce is distinguished by its looseness and the delicate nutty taste of its juicy green leaves.
This variety is mid-early (full maturity 90 days after sowing), grown from spring to autumn in open ground.
For early production, it is grown through seedlings (sowing seeds in greenhouses: April - May).
Very light- and moisture-loving. Planting scheme 30 x 30 cm.
Romaine lettuce (or Cos) belongs to the heading subspecies of lettuce. The head of Roman lettuce is distinguished by its looseness and the delicate nutty taste of its juicy green leaves.
This variety is mid-early (full maturity 90 days after sowing), grown from spring to autumn in open ground.
For early production, it is grown through seedlings (sowing seeds in greenhouses: April - May).
Very light- and moisture-loving. Planting scheme 30 x 30 cm.
* Romaine lettuce is sown from early July to late August for autumn consumption.
Sowing rate for head varieties with one thinning up to 2 kg/ha, with two - 2.5-3.0 kg/ha.
With the seedless method of growing (direct sowing), double thinning is carried out.
The seedling method of growing is used to obtain an early harvest. First, seedlings are grown, which are then pricked out into pots. To obtain seedlings, seeds are sown 30...35 days before planting in the field. 0.5 g of seeds are sown in one box. At a temperature of +20+22°C, shoots appear in 2-3 days, after which the temperature is reduced to +10+12°C. In the true leaf phase, seedlings are pricked out into cubes or pots. When planting, the cube is buried no more than two-thirds of its height.
Care of crops consists of shallow loosening of row spacing, weeding, and watering in dry weather. The irrigation regime affects the concentration of nitrate ions in plants, especially at high temperatures. During the period of head formation, watering is carried out only along the furrows.
Harvesting is carried out in the evening or early morning when the plants are cooled and therefore better retain their fresh marketable appearance.
In its properties, Romaine is similar to late-ripening varieties of head lettuce but differs from them in unpretentiousness, resistance to bolting, and longer storage duration.
Roman lettuce is cold-resistant; well-hardened seedlings withstand a temperature drop to -3°C. But during the period of head formation, even the lightest frosts negatively affect the further growth of plants.
Roman lettuce is very demanding of high illumination. Shaded places are not suitable for it, because with a lack of light, small and very loose heads are formed.
Like all head lettuces, Roman lettuce is demanding of high soil moisture but does not tolerate waterlogging, since prolonged rains lead to plant rot. At the same time, a lack of moisture in the soil negatively affects the size and density of the head and can cause premature bolting (leaves become bitter).
