We can see many embryos in the seeds of some plants. What is this phenomenon called ? Give two examples
Answers
In one seed making of two or more than two embryos on account of the existence and fertilization of more embryonic sac or to origination of embryos in the embryonic sac externally.
It occurs mainly in animal and plant species and it occurs in nine-banded armadillo where four similar twins are born which are genetically different from one another.
The process of formation of two or more embryo in a ovule is known as Polyembryony. The phenomenon, polyembryony is not a supernatural but a common trait in plants. There are various type of polyembryony in plants. They are
Cleavage polyembryony
Embryos from cells of embryo sac other than egg
Embryos from endosperm
Embryos arise from the cells outside embryo sac
Some practical value of polyembryony are
- It forms a great significance in horticulture by producing uniform seedlings.
- It provides better clones in citrus plant
- It develop tap root system.
- They are free from diseases.