Monocot & Dicot Seeds
Flowering plants generally referred to as angiosperms, fall into two classes, based on the number of cotyledons or seed leaves, within their seeds. For monocotyledons, also referred to as monocots, seeds contain only one cotyledon and when a monocot seed germinates, it produces a single. It is usually long and narrow, like a mature leaf. On the other hand, dicotyledons or dicots are the first leaves of a seedling and serve to absorb nutrients in the endosperm or food storage of the seed. They are not used for photosynthesis. Both monot and dicot seeds require similar conditions for seed germination.
What You Need To know About Monocot Seeds
- The embryo contains only one cotyledon.
- Plumule is lateral, cotyledons is terminal.
- Plumule and radicle are surrounded by coleoptiles and coleorhizae respectively.
- Mostly albuminous.
- Seed germination is hypogeal
- A large endosperm is present inside the seed, feeding the embryo
- The plumule goes upward with the plumule sheath.
- Primary root formed from the radicle perishes with time and replaced by a tuft of adventitious fibrous roots.
Examples Of Monocots
- Day flower
- Day lily
What You Need To Know About Dicot Seeds
- The embryo contains two cotyledons.
- Plumule is terminal, cotyledons are lateral.
- Coleoptiles and coleorhizae are absent.
- Mostly albuminous or exalbuminous.
- Seed germination is either hypogeal or Epigeal
- The seed contains a tiny endosperm.
- Plumule is pushed upwards by the actively growing epicotyl or hypocotyl
- Radicle produces the primary root which persists and bears many lateral roots.
Examples of Dicots
- Sweet pea
Also Read: Difference Between Monocot And Dicot Roots
Difference Between Monocot And Dicot Seeds In Tabular Form
|BASIS OF COMPARISON||MONOCOT SEEDS||DICOT SEEDS|
|Description||The embryo contains only one cotyledon.||The embryo contains two cotyledons.|
|Plumule & Cotyledon||Plumule is lateral, cotyledons is terminal.||Plumule is terminal, cotyledons are lateral.|
|Coleoptiles And Coleorhizae||Plumule and radicle are surrounded by coleoptiles and coleorhizae respectively.||Coleoptiles and coleorhizae are absent.|
|Food Storage||Mostly albuminous.||Mostly albuminous or exalbuminous.|
|Germination||Seed germination is hypogeal||Seed germination is either hypogeal or Epigeal|
|Endosperm Size||A large endosperm is present inside the seed, feeding the embryo||The seed contains a tiny endosperm.|
|Plumule||The plumule goes upward with the plumule sheath.||Plumule is pushed upwards by the actively growing epicotyl or hypocotyl|
|Radicle||Primary root formed from the radicle perishes with time and replaced by a tuft of adventitious fibrous roots.||Radicle produces the primary root which persists and bears many lateral roots.|
Also Read: Difference Between Monocot And Dicot Leaf