Bolls are protective capsules that develop from the flowers of certain plants, such as cotton plants. They are an important part of the plant's reproductive cycle and serve as a protective structure for the developing seeds.
Bolls are typically round or oval in shape and are made up of several layers. The outer layer, or exocarp, is often tough and fibrous, providing protection for the developing seeds inside. Inside the exocarp, there are layers of fibers and a network of vascular tissues that supply nutrients to the developing seeds. The seeds are surrounded by a fluffy material called cotton fiber, which is harvested for various commercial uses.
The main function of bolls is to protect the developing seeds from environmental stresses, such as pests, diseases, and harsh weather conditions. Additionally, the fibers within the bolls provide insulation and support for the seeds as they mature.