Seed Germination

[Tae-Ho Han]

https://youtu.be/TE6xptjgNR0

게시일: 2015. 12. 26.

You will learn about "Seed Germination" in this video. The life of a plant begins from a tiny seed. The seed is protected by an outer covering called a seed coat. The seed contains a small baby plant called the embryo. Conditions required for the growth of a seed are Moisture, Warmth, Nutrient rich soil, Sunlight and Good quality seed. Once, these conditions are satisfied, the seed begins to grow. The seed absorbs water from the soil and provides moisture to the embryo. The plant cells inside the seed start duplicating, enzymes get activated and the embryo starts getting nourishment. The first sign of growth is a tiny root which comes out of the seed. With more and more nourishment, the embryo starts growing. Eventually, the growing plant bursts open through the seed coat in search of sunlight to start its own process of photosynthesis. Once the seed coat falls off, the root starts growing downwards to anchor the seed and to search for more food and nutrients from the soil. Meanwhile, the shoot also starts growing upwards towards the light. Soon, we see a baby plant with tiny leaves. This process of the growth of a seed into a plant is called germination.