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seedling
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thumb|Monocot (left) and dicot (right) thumb|right|Seedling of a Scots pine thumb|Grass seedlings (150-minute time lapse)
Research
61,976 papers- Germination and seedling establishment in orchids: a complex of requirements.Annals of botany · 2015
- Regulation of seedling growth by ethylene and the ethylene-auxin crosstalk.Planta · 2017
- Sowing success: ecological insights into seedling microbial colonisation for robust plant microbiota engineering.Trends in plant science · 2025
- Characterization of Seed-to-Seedling Transmission of Alternaria brassicicola in Broccoli.Plant disease · 2024
- Characterization of Seedling Greening Process in Plant Photomorphogenesis.Methods in molecular biology (Clifton, N.J.) · 2021
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Article
8 sectionsContents
- Photomorphogenesis and etiolation
- Seedling growth and maturation
- Pests and diseases
- Transplanting
- Images
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- References
- Bibliography
thumb|Monocot (left) and dicot (right) thumb|right|Seedling of a Scots pine thumb|Grass seedlings (150-minute time lapse)
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). The two classes of flowering plants (angiosperms) are distinguished by their numbers of seed leaves: monocotyledons (monocots) have one blade-shaped cotyledon, whereas dicotyledons (dicots) possess two round cotyledons. Gymnosperms are more varied. For example, pine seedlings have up to eight cotyledons. The seedlings of some flowering plants have no cotyledons at all. These are said to be acotyledons.