Lettuce is one of the salad
crops grown commercially across the world. Lettuce was grown for centuries and
was originated in Asia continent. The demand for salad crops are increasing day
by day due to their diet value and medicinal values. In India, it is yet to
gain significance in terms of commercial crop cultivation. Lettuce is a leafy
vegetable which can be consumed raw. Among all the lettuce varieties, Romaine
lettuce variety is famous for its nutrition values. Lettuce is mainly used in
food items like wraps, sandwiches apart from using as leafy vegetable. China is
top producer of lettuce in the world. Lettuce plant leaves are mainly in the
green and red colour spectrums. Lettuce produces smooth, radical, spirally arranged
leaves. There are other improved varieties whose colours are available in
yellow, gold or blue leaves. When it comes to shape, they have a wide range of
shapes and texture from dense head to iceberg type. Lettuce plants can be
spread about 15 to 30 cm. Lettuce can be grown in greenhouse, polyhouse and
even hydroponically. Read more about lettuce growing here.
