How to choose lettuce leaves are the color of lettuce leaves, the hardness of lettuce leaves, and the tenderness of lettuce leaves.

1, the color of lettuce leaves

For the look of green, no yellow leaves this is the basic, of course, this is also a sign of fresh vegetables. If the lettuce leaves look yellowish, then it is certainly not fresh.

2, lettuce leaf hardness

To pinch the lettuce leaf, if you can make a relatively crisp sound, and accompanied by a lot of water seepage, then it means that the lettuce leaf is relatively fresh, so the lettuce leaf is very good.

3, lettuce leaves old and young

Can be found, as a result of tender lettuce leaves may be relatively better taste, older lettuce leaves eat up will be a kind of difficult to chew, so you can look at the lettuce leaves old and young, lettuce leaves look more tender and yellow, but not to the yellow is the case is a more tender, while the darker color is the case is a more tender, and the darker color is the case is a more tender, and the darker color is the case is a more tender. The darker the color is, the lettuce leaves are already a little bit old.

Lettuce varieties:

1, pointed leaf lettuce

Leaf lanceolate, pointed at the apex, the leaf cluster is smaller, the internode is sparse, the surface of the leaf is smooth or slightly wrinkled, the color green or purple. Fleshy stems stick-shaped, under the thick on the thin. Late-maturing, more heat-resistant in the seedling stage, can be used for fall or overwintering cultivation. The main varieties are: willow leaf lettuce, Beijing purple leaf lettuce, Shaanxi pointed leaf white shoots, Chengdu pointed leaves, Chongqing Wannian pile, Shanghai pointed leaves, Nanjing white skin fragrant early species.

2, round leaf lettuce

Leaf blade long obovate, slightly rounded at the top, the leaf surface is more crumpled, leaf cluster is larger, the internode is dense, the stem is thick (lower part of the thick, the two ends of the gradual thinning), the maturity period is early, the cold resistance is strong, heat-resistant, and more for the overwintering spring lettuce cultivation. The main varieties are: Beijing carp melon shoots, Chengdu hanging silk red, two white skin, two green skin.

Reference: Baidu Encyclopedia - Lettuce