Monocots will have only one seed leaf inside the seed coat. Most of the time it is only a thin leaf because the endosperm to feed the new plant is not inside the seed leaf.
Examples of Monocot Seeds:
Rice, wheat, maize, bamboo, palm, banana, ginger, onion, garlic, lilies, daffodils, iris, tulips are examples of Monocot seeds.
Characteristics of Monocot Seeds:
Cotyledon is single with an embryo.
Pollen is single with the pore.
Parts of the flower are in multiples of three.
The parallel of major leaf veins.
Scattered stem vascular bundles.
Absent of secondary growth.
The structure of Seed monocot is explained below:
Embryos of monocot seeds have one large cotyledon, and that’s called scutellum. This scutellum is shield-shaped and is located towards the side of the embryo axis. In monocot seeds, the endosperm is covered from a proteinous layer called aleurone layer. The embryo axis of monocots is of shoot tip; they are enclosed in a sheath called coleoptile and a root tip radicle which is enclosed in coleorhiza.
Most of the monocot seeds are thick, swollen endosperms for nourishment. They are also called albuminous. During the embryo development, the endosperms are not entirely developed, and it is the nourishing tissues in seeds.
Dicot seeds(Dicotyledons) are the seeds which have two embryonic leaves and cotyledons. They are one of the two groups into which all the flowering plants were divided.
Examples of Dicot Seeds:
Bitter gourd seeds, Castor seeds, Mango seeds, Neem Seeds, Night Jasmine seeds, Papaya seeds and, Tamarind seeds.
Characteristics of Dicot seeds:
It contains two cotyledons.
The outer covering of dicot seed is the seed coat, which has two layers called outer testa and inner tegmen.
The embryo stays within the seed coat and includes an embryonic axis and two cotyledons. These cotyledons are mostly fleshy and full of reserve food materials.
Dicots are also known as Dicotyledons. All the flowering plants or angiosperms are divided into groups. So far there are about 2,00,00 species of cotyledons have been discovered. In dicots, the embryo will have an embryo axis and two cotyledons. The appearance of cotyledons is swollen as they preserve the food for developing seedlings. There are two ends for the embryo axis. The formation of shoot tip called plumule and root tip at the lower end called the radicle. This content is covered with a protective coat called seed coat which is made up of Testa and Tegmen.
The difference between the Monocot and dicot seeds are mentioned below:
1. What are the Three Types of Embryo?
Answer: The three types of the embryo are - embryo axis, radicle, cotyledon.
2. What is Dicot? Give a Dicot Example.
Answer: It's a group of flowering plants that have two seed leaves. Dicot Example- Bitter gourd seeds, Castor seeds, Mango seeds.
3. What is Monocot? Give Monocot Example
Answer: Mono means one and a cotyledon is a seed leaf. Monocot Example - Rice, wheat, maize, bamboo, palm, banana, ginger.
4. Can Dicot Seeds Store Food Materials?
Answer: Yes, dicot seeds can store food materials.
5. What is Scutellum?
Answer: Embryos of monocot seeds have one large cotyledon which is called scutellum.
6. What does an Embryo Consist of in Dicot?
Answer: In dicot, the embryo consists of the embryo axis and two cotyledons.
7. How many Species of Dicotyledons are Discovered so far?
Answer: Around 2,00,000 species of dicotyledons have been discovered.
8. What is the Seed Coat Made up of?
Answer: The seed coat is made up of an outer layer called testa and an inner layer called tegmen.