A Seed Develops From What Part Of The Flower Plant Growth Stages – How Plants Grow

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Plant Growth Stages – How Plants Grow

The growth stages of plants mirror those of other organisms with an initial, reproductive, and terminal stage, except that some plants have an additional dormant stage. The terms for these phases are: vegetative, reproductive, senescence, and dormancy.

Beginning as a seed, a plant seed is like a fertilized egg. It contains food stores for new plant life and a protective outer shell. During the first stage of plant growth, the vegetative stage, the seedling absorbs moisture and nutrients from the food stores inside the seed. When the plant absorbs the food of the seed and begins to grow the root stem and shoot to form leaves, it penetrates the protective wall of the seed and begins to grow. The root grows in warm, moist earth, while the shoot grows upward toward sunlight and warm air. After germination, the leaves unfold and the roots continue to grow and spread. This continues until the seedling is fully developed with roots, root hairs and leaves. Roots and leaves absorb moisture and nutrients from the soil, water and air.

The next stages of plant growth will be the reproductive stage. At this stage, when the seedling matures, it produces a flower that has either male or female parts or both. The flower contains pollen, which is then transferred to the egg part of the flower and grows into new seeds or seed pods to maturity. Pollination can occur with the help of wind, vibrations, insects such as bees, and animals. Or, humans can artificially breed and cross breed plants through pollination efforts or by grafting other plants. The advantage of seed pollination is that gene diversity can occur, which can help survival.

The third growth phase occurs after new seeds or pods are formed and propagated for new plant life. This would be senescence or aging in plants. This is seen in autumn as the leaves on certain deciduous trees change color before falling. Aging plants show the same deterioration as other organisms, such as free radical damage and telomere shortening.

Another stage of growth that is distinct from senescence is dormancy. During dormancy, the plant goes into a state of hibernation, allowing it to survive harsh winter weather and revive with new growth in the spring without going through the seed stage. This is easily seen in trees, that in autumn the leaves drop and the sap comes up, then the tree goes dormant until new buds emerge in the warm weather of spring, the whole cycle goes on for years until the tree grows. Finally dies. Dormancy can give plants an edge because they can build on the previous year’s growth rather than starting from seed. This gives them a competitive edge for sunlight and soil, as they are larger.

The stages of plant growth are all part of the chain of life, similar to the growth and decay of other organisms.

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