Plant Reproduction
摘要
This chapter focuses on flowers, fruits, and seeds. Plant reproduction involves sexual and asexual processes. Flowers are the reproductive structures of angiosperms, facilitating pollination and fertilization. Pollination vectors, including wind, water, and animals, are supported by diverse pollen types adapted to specific vectors. Fertilization leads to seed formation within fruits. Seeds are multicellular and contain an embryo, endosperm, and seed coat, ensuring resilience and enabling germination under favorable conditions. In contrast, spores, produced by non-seed plants like ferns and mosses, are unicellular and rely on environmental conditions for growth, representing a simpler reproductive strategy. Fruits develop from ovaries and range from pome (apple) to legume (pea) and caryopsis (corn). Secondary growth, a characteristic of perennial woody plants, involves the activity of vascular cambium and cork cambium, resulting in increased girth and the formation of wood and bark. This growth supports long-term survival and enhances structural stability. Studying plant reproduction and growth processes provides insights into strategies for optimizing agricultural yield, nutrition, and sustainability.