In fact, the lettuce we eat most often has many varieties and shapes, including purple, green and round. The most common ones are Roman emperors, Caesar, Malec, generals, Salinas, Great Lakes, Eastern Renaissance, Empress, Olympia and so on.
1, Olympia
The extremely early-maturing crisp-leaf spherical variety introduced from Japan has strong heat resistance, many gaps in the small leaf margin, dense leaf bulbs, crisp and tender quality and good taste, and is suitable for cultivation in late spring, early summer, summer and early autumn.
2. Beishan No.3
Beishan 3 is heat-resistant and high humidity-resistant, with large outer leaves and thick leaf sheath. Suitable for cultivation in spring, summer and autumn, with short harvest period and close planting in summer. It is also a good variety suitable for soilless culture in greenhouse, but it is difficult to harvest seeds because of late bolting.
3. Caesar
Caesar is also introduced from Japan, which has strong heat resistance, good disease resistance, late bolting, fertilizer tolerance, neat plant growth, compact plant shape and crisp quality, and is suitable for spring and autumn protected land and summer open cultivation.
4, the emperor
Dihuang is a variety introduced from the United States, which is heat-resistant and disease-resistant, adaptable, with compact leaves, flat top, crisp and tender quality and excellent quality. Suitable for cutting cultivation in spring, summer and autumn, and also suitable for protected cultivation in winter and early spring.
5, mosaic lettuce
Mosaic lettuce, produced in Germany, belongs to hemispherical root type, with good quality, bitter taste, heat resistance, strong adaptability, strong resistance to pests and diseases, heat clearing, anti-inflammatory and hypnotic effects, and is suitable for open field cultivation and protected field cultivation in spring and autumn.
6. Salinas
Dunaliella salina is heat-resistant, resistant to downy mildew and top scorch, with strong and tidy plants, few outer leaves, dense leaves, good appearance and good quality, but the maturity is consistent, and it is more resistant to transportation, so it is suitable for summer cultivation.