Definition - What does Seed mean?
In botany, seeds refer to the embryonic plants growing in hard or semi-hard outer coverings. The seedling stage is an essential part of propagation in seed plants. They emerge from the ripened ovule after pollen fertilization. The seed coat is developed from the ovule integuments while the embryo inside comes from the zygote. Seeds are crucial to the reproductive process of angiosperm as well as gymnosperm plants.
MaximumYield explains Seed
Angiosperm seeds are produced in fruits within the tough, fleshy interior. On the other hand, gymnosperm seeds do not require any special structure to grow and develop directly on cone bracts. With time, they become gradually enclosed by the cone scales.
Seed production varies in response to insects, climate, diseases, and the plant’s internal cycle. According to botanists, both spatulate and linear gymnosperms have two different types of seeds, while dicotyledons plants have 10 varieties of seeds and monocotyledon plants boast six various types of seeds.
While most plants are propagated by seedlings, some seeds are dispersed through the wind. These include poplar, milkweed, orchids, and pine, among others. Seeds produced by Dioclea and Mucuna plants are quite buoyant. As such, they are dispersed through water as they wash up on beaches or float in ponds and rivers.