Lettuce
Origin and history:
Lettuce originates from the Mediterranean region and has been grown for thousands of years for its tender leaves. The Riana variety was developed at the Vegetable Research and Development Station (V.R.D.S.) in Buzau, Romania, with the aim of offering a product of superior quality, hardy and adapted to the environmental conditions of the region.
Botanical characteristics:
Riana lettuce is an annual herbaceous plant with large, smooth leaves of a bright light green. The leaf rosette is compact, with a crisp texture and a fresh, slightly sweet taste. The plant reaches a height of approximately 20-25 cm and forms a well-defined head with an average weight of 250 g.
Growing conditions:
Riana lettuce prefers fertile, well-drained soils with a neutral pH. It can be grown both in the open field and in greenhouses and other protected structures. The optimum planting period is early spring (March-April) or late autumn (September-October). It is a species that tolerates low temperatures well, but it requires consistent watering in order to keep the leaves tender.
Care and maintenance:
To ensure vigorous growth, Riana lettuce needs regular weeding to remove the weeds that compete with it for space. Fertilising may be carried out with compost or organic manures, applied in moderation. It is important to avoid waterlogging the soil, in order to prevent the roots from rotting.
Propagation:
Riana lettuce is propagated from seed, which may be sown directly into the soil or in cellular trays for seedling production. Germination generally takes 7-10 days at temperatures of 16-20°C. The seedlings can be planted out in the field approximately 4-6 weeks after sowing.
Uses
Riana lettuce is ideal for fresh consumption and is used in salads and sandwiches or as a garnish. Its pleasant taste and crisp texture make it an excellent choice for a healthy, balanced diet.