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The stages of germination of a pea plant: A. seed coat, B. radicle, C. primary root, D. secondary root, E. cotyledon, F. plumule, G. leaf, H. tap root. The part of the plant that first emerges from the seed is the embryonic root, termed the radicle or primary root. It allows the seedling to become anchored in the ground and start absorbing water.
Sowing is the process of planting seeds. An area that has had seeds planted in it will be described as a sowed or sown area. When sowing it is important to: Use quality seeds; Maintain proper distance between seeds; Plant at correct depth; Ensure the soil is clean , healthy , and free of pathogens (disease causing microorganisms)
These plants tend to propagate in this manner anyway, and potting a new limb will give extra plants without having to sow new seed. Simple layering can also help when a plant has overgrown its pot and is drooping over the side. The long stem is layered into another pot until it roots, thus bringing it back to soil level. [6]
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The seed pods have five valves which coil back rapidly to eject the seeds in a process called explosive dehiscence [9] or ballistochory. This reaction is where the name 'touch-me-not' comes from; in mature seed pods, dehiscence can easily be triggered with a light touch. The plant blooms from late spring to early fall.
precision seeding, where seed is placed at a precise spacing and depth; hydroseeding, where a slurry of seed, mulch and water is sprayed over prepared ground in a uniform layer. Broadcast seeding is of particular use in establishing dense plant spacing, as for cover crops and lawns. In comparison to traditional drill planting, broadcast seeding ...
A seedbed of rice plants. A seedbed or seedling bed is the local soil environment in which seeds are planted. Often, it comprises not only the soil but also a specially prepared cold frame, hotbed or raised bed used to grow the seedlings in a controlled environment into larger young plants before transplanting them into a garden or field.
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