Seed germination may be defined as the fundamental process by which different plant species grow from a single seed into a plant. This process influences both crop yield and quality. During the beginning stage of germination, the seeds take up water rapidly and this results in swelling and softening of the seed coat at an optimum temperature. This stage is referred to as Imbibition. In certain cases, a temperature below the moderate level slows down seed germination and promotes fungal growth. In some cases, germination stops at a temperature above the moderate level. In simple words, germination can be defined as the growth of a seed into a young plant or a seedling. The seed coat, which is resistant to water and gases, restricts water-uptake and oxygen exchange. By rupturing the seed coat, a radicle emerges to form a primary root. The seed starts absorbing underground water. After the emerging of the radicle and the plumule, the shoot starts growing upwards
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