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  2. Seed - Wikipedia

    en.wikipedia.org/wiki/Seed

    In addition to the three basic seed parts, some seeds have an appendage, an aril, a fleshy outgrowth of the funicle , (as in yew and nutmeg) or an oily appendage, an elaiosome (as in Corydalis), or hairs (trichomes). In the latter example these hairs are the source of the textile crop cotton.

  3. Seedling - Wikipedia

    en.wikipedia.org/wiki/Seedling

    A seedling is a young sporophyte developing out of a plant embryo from a seed. Seedling development starts with germination of the seed. A typical young seedling consists of three main parts: the radicle (embryonic root), the hypocotyl (embryonic shoot), and the cotyledons (seed leaves).

  4. Germination - Wikipedia

    en.wikipedia.org/wiki/Germination

    It allows the seedling to become anchored in the ground and start absorbing water. After the root absorbs water, an embryonic shoot emerges from the seed. This shoot comprises three main parts: the cotyledons (seed leaves), the section of shoot below the cotyledons , and the section of shoot above the cotyledons . The way the shoot emerges ...

  5. Endosperm - Wikipedia

    en.wikipedia.org/wiki/Endosperm

    In the caryopsis, the thin fruit wall is fused to the seed coat. Therefore, the nutritious part of the grain is the seed and its endosperm. In some cases (e.g. wheat, rice) the endosperm is selectively retained in food processing (commonly called white flour), and the embryo and seed coat removed. The processed grain has a lower quality of ...

  6. Radicle - Wikipedia

    en.wikipedia.org/wiki/Radicle

    The radicle emerges from a seed through the micropyle. Radicles in seedlings are classified into two main types. Those pointing away from the seed coat scar or hilum are classified as antitropous, and those pointing towards the hilum are syntropous. If the radicle begins to decay, the seedling undergoes pre-emergence damping off. This disease ...

  7. Flowering plant - Wikipedia

    en.wikipedia.org/wiki/Flowering_plant

    As the embryo and endosperm develop, the wall of the embryo sac enlarges and combines with the nucellus and integument to form the seed coat. The ovary wall develops to form the fruit or pericarp, whose form is closely associated with type of seed dispersal system. [68] Other parts of the flower often contribute to forming the fruit.

  8. Agricultural cycle - Wikipedia

    en.wikipedia.org/wiki/Agricultural_cycle

    A grafted plant consists of two parts: first rootstock, which is the lower part of the plant that comprises roots and the lowest part of the shoot; second, the branches and primary stem, which consists of the upper and main part of the shoot which gradually develops into a fully nourished plant. [1]

  9. Ovule - Wikipedia

    en.wikipedia.org/wiki/Ovule

    Location of ovules inside a Helleborus foetidus flower. In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: the integument, forming its outer layer, the nucellus (or remnant of the megasporangium), and the female gametophyte (formed from a haploid megaspore) in its center.