Effects of Morphological Characterization in Different Bolting Period of Lettuce

Abstract

Bolting is the beginning of flowering and plays an important role in plant growth and development. Detecting changes between and after bolting will provide the foundations for molecular studies of lettuce. Here, we observed morphological characterization and paraffin section in different parts of the lettuce in different growth period. The results showed that as the seedling grew, the lettuce transformed from vegetative growth to reproductive growth, the growth rate of the leaves became slow, the internodes of the stem were significantly elongated, at the same time, the growing cone had significantly increased in size and become long. The results imply that paraffin section can allow a preliminary judgment of lettuce period which can provide a foundation material for molecular studies of lettuce.