What kinds of lettuce do you have? How to select seeds?

Lettuce is a common green vegetable, high nutritional value, eat crisp sweet and delicious, in the market much welcomed by consumers. Although lettuce planting is relatively simple, but farmers before planting lettuce, the most important thing is to select seeds, so what varieties of lettuce? How to select seeds? Let's take a look at it together with Xiaobian.

1. Olympia

A very early maturing variety with crisp leaves and bulb type introduced from japan. Strong heat tolerance, bolting very late. The outer leaves are small and the leaf margin is notched. The leaf ball is firm, crisp and tender in quality and good in taste. It is suitable for cultivation in late spring, early summer, summer and early autumn.

2. Beishan No.3

It is also a very early variety introduced from Japan, with strong heat resistance, high humidity tolerance and late bolting. The outer leaves of the bulb are large, the leaf sheath is thick, and the inner leaves are gradually smaller and less, belonging to the "leaf heavy" variety. Suitable for late spring, summer and autumn cultivation, from planting to harvest time is only 40-50 days, summer suitable for dense planting, but also suitable for greenhouse soilless culture of improved varieties. But because bolting is very late, it is not easy to pick seeds.

3. Caesar

A very early maturing variety introduced from japan. Strong heat tolerance, good ball setting at high temperature, disease resistance, late bolting, fertilizer tolerance. Appearance plant growth neat, compact plant shape. The quality is crisp and tender. Suitable for spring and autumn protected land and summer open field cultivation.

4 The Emperor

It is a mid-early maturing variety introduced from the United States. This variety is resistant to heat and disease and has strong adaptability. The bulb is compact and the top of bulb is flat. It is a leaf weight variety. Crispy and refreshing, good quality. Suitable for spring, summer and autumn cultivation in the open field, but also suitable for winter and early spring cultivation in protected areas.

5 The Queen

Medium-early variety introduced from USA. The heat-tolerance is slightly worse than "Emperor" and bolting is late. It is more resistant to vegetable mosaic virus disease and apical scorch disease. Leaf ball oblate round, compact ball was light green. Delicate and crisp texture, good flavor.

6. Salinas

Medium-early variety introduced from USA. It is heat-resistant, bolting late, resistant to downy mildew and top scorch. The plants grow vigorously and neatly with few outer leaves and compact leaf bulbs. Good appearance, good quality, but consistent maturity. More resistant to transport, can adapt to summer cultivation.

7. Avantgarde 75

A medium-early maturing variety introduced from the United States in early years. It has strong adaptability, can be cultivated in summer, but the yield is low, and it should be harvested in time. It is easy to cause top scorch disease and rot under high temperature and high humidity. When cultivated in cool weather, the plant is larger and grows vigorously. Therefore, it is suitable for winter and early spring conservation. Cold tolerance, mosaic disease resistance.

8. Karaske

An early maturing variety introduced from the United States. Strong heat tolerance, resistance to mosaic virus disease and top scorch, bolting late, very suitable for late summer and early autumn cultivation. The bulb is oblate, bigger and tighter than Emperor's, less deformed bulb and better in appearance. It is a leaf weight variety.

9. Pegasus

It is an early maturing variety introduced from the United States. It has the advantages of resistance to mosaic virus disease and extreme resistance to top scorch. Summer cultivation showed good heat tolerance and early bolting resistance. The bulb is medium in size, turquoise, darker than the Emperor variety, and compact.

10. Vegetable mosaic

Produced in Germany, Chinese Academy of Agricultural Sciences introduced the latest varieties, belonging to the semi-ball type, Compositae annual vegetables. Good quality, bitter taste, heat resistance, adaptability, disease and insect resistance, with heat, anti-inflammatory, hypnotic effect, suitable for spring and autumn open cultivation and protected cultivation.

The above is the introduction of lettuce varieties, planting lettuce, must choose full particles, uniform size seeds, seeds bought back, to carry out some special treatment. They can be soaked in warm water for a period of time, so that the seed coat can be softened to a certain extent, which is very helpful for improving the germination rate.

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