The Causes Of Water: Different Factors For Germination

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Germination is the early stage of growth of a plant from a seed through the uptake of carbon dioxide. An indication that germination has occurred is through the penetration of the radicle through the structures around the embryo (Bewley, 1055). There are multiple factors that affect seed germination, one of which is water. Water is necessary for seed germination to occur because water rehydrates the seed, enabling it to grow. Without water, the seed can remain dormant. Dormancy occurs when seeds do not germinate, even when placed in the right conditions, in order for seeds to disperse and avoid germination at an unwanted period of time (Allott, Mindorff, 435). Some seeds contain hormones that inhibit germination, and water is necessary to washes the hormones out of the seed in order to germinate. An excess of water can also inhibit germination, as was seen in the experiment by Heather Jerrett and Delia Gillen. When their conditions were too wet, an anaerobic condition persisted, and seeds were unable to germinate (Jerrett, Gillen). In nature, acid rain is formed when sulfur oxides and nitrogen oxides incorporate into rain. These rains usually have pH of 5.6. This is particularly deadly to plants such as turning leaves brown, reducing photosynthesis ability, and damage the leaf chlorophyll, impacting overall forest environment. (Talbot, Harwood, Coates, 276) Oxygen is also required for seed germination because the seed must undergo a variety of chemical reactions that use

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