Exact leaf lettuce is one of the most popular varieties, attracting attention for its excellent taste and ease of care. It has unique characteristics that make it ideal for growing in a variety of climates. It's important to thoroughly study the characteristics, positive and negative qualities of this plant, and give it the attention it deserves.
History of origin
This is a frisee-type chicory lettuce variety developed by the Dutch company Rijk Zwaan in 2013. It is suitable for both processing and fresh market sale.
Introduction to the variety
Exact is an excellent choice for those who appreciate fresh, green leaves. This variety is highly heat- and cold-hardy and resistant to diseases and pests, making it reliable in a variety of conditions.
The crop is successfully grown both in open ground and in greenhouses. Ripening time is 48-56 days. It has excellent shelf life, maintaining freshness for a long time. The average yield reaches 5.5-6 kg per square meter.
Description of appearance and taste
The plant has a compact size: the height reaches about 19 cm, and the diameter is up to 20 cm. Distinguishing characteristics:
- Weight varies from 500 to 750 g.
- The rosette is semi-erect with large, broadly rhombic, light green leaves with a glossy surface.
- The edge has a characteristic strongly wavy shape with jagged cuts, and the structure itself is crisp.
- ✓ Resistance to sudden temperature changes, which is rare among leafy lettuces.
- ✓ Ability to maintain the crispy structure of leaves even after long-term storage.
These characteristics make this variety particularly appealing to lovers of fresh and crisp salads. The greens have a sweet and delicate flavor, free from bitterness.
The health benefits of Exact leaf lettuce
It is a rich source of vitamins and minerals, including vitamin A, vitamin K, vitamin C, and vitamin E. It contains potassium, magnesium, iron, and calcium, which are essential for the normal functioning of the body.
Beneficial properties:
- The high vitamin C content helps strengthen and improve the skin's condition thanks to its antioxidant properties, which fight harmful free radicals and prevent premature aging. It also strengthens the body's defenses, helping prevent various infections and diseases.
- Vitamin A maintains eye health, improves vision in the dark and prevents age-related changes.
- Due to its low calorie content and high fiber content, it helps maintain weight and creates a feeling of satiety.
- Vitamin K helps prevent blood clots and improve blood circulation, which reduces the risk of cardiovascular problems.
- Numerous antioxidants protect the body from free radicals, preventing the development of various diseases, including cancer.
Agrotechnical subtleties
The plant prefers loose, fertile, and well-drained soil. Before planting, dig the soil to a depth of 20-30 cm, adding compost or humus. The pH should be neutral or slightly acidic.
- ✓ The optimal soil temperature for sowing seeds should not be below +5°C.
- ✓ The soil should be loosened to a depth of at least 25 cm before planting to ensure good aeration of the roots.
Lettuce grows best in sunny or semi-shaded areas. Avoid shaded areas, as this can slow growth and reduce the quality of the leaves.
Peculiarities:
- Sow seeds directly into open ground or for seedlings. For the former, sow in early spring or fall. Dig furrows and plant the seeds 1-2 cm deep, keeping a distance of 20-30 cm between rows.
- For seedlings, place the seeds in containers filled with potting mix and cover with plastic wrap until sprouts appear. Once sprouts appear, provide them with light. Transplant the grown plants into open ground.
Provide the crop with comprehensive care. Follow simple agricultural practices:
- Water your greens frequently, especially in hot weather. Apply water at the roots, avoiding drips. The soil should be moderately moist but not waterlogged.
- Feed your lettuce with a complete mineral fertilizer or organic matter (such as compost) every 3-4 weeks. Too many nutrients can lead to nitrate accumulation in the leaves.
- Remove yellowed or diseased areas to prevent disease and improve air circulation. If necessary, protect plants from strong sun or frost.
- Weed the area regularly to remove weeds that may compete with lettuce for nutrients and water. Periodic loosening of the soil helps improve aeration and drainage.
- × Avoid watering during hot periods of the day to prevent leaf burn.
- × Avoid stagnant water to avoid the development of fungal diseases.
The crop has a strong immune system, but if not properly cared for, plantings can suffer from diseases and insect attacks:
- Aphid. It sucks the sap from the leaves, which can cause them to deform and wilt. Insecticides such as Actellic or Karbofos, as well as natural remedies such as garlic or tobacco infusion, will help.
- Snails and slugs. They eat leaves, leaving behind traces. Use special baits, such as pellets with metal decorin, and place barriers of ash or slaked lime around the area.
- Caterpillars. They cause severe damage. Effective control measures include the use of biological insecticides, such as Baktofit or Dendrobacillin, which target the pests without harming the plant.
- Peronosporosis (downy mildew). It appears as gray spots on the underside, which may eventually develop a white coating. Fungicides such as Metalaxyl or Ridomil Gold are effective. Prevention is important: avoid overwatering and ensure good ventilation.
- Powdery mildew. Characterized by a white powdery coating that causes the shoots to wilt. Fungicides such as Skor or Topaz will help solve the problem. Regularly remove affected leaves and ensure proper spacing between shoots to improve air circulation.
- Blackleg. It appears as dark spots at the base of the stem, which can lead to rot and death of the plant. Copper-based products, such as HOM or Bordeaux mixture, can help. Prevention involves proper watering and using sterile planting material.
Reviews
Exact lettuce is an excellent choice for those who value the freshness and flavor of greens in their diet. Its low maintenance and high nutritional value make it versatile and easy to grow. By following simple planting and care guidelines, you'll be able to reap bountiful harvests and high-quality plants with excellent flavor.