Plant tissue culture is like growing plants from tiny pieces called samples. Imagine a large plant as a full cake, and plant tissue culture as a few crumbs from the edge of the cake. These crumbs might be very small, but they contain everything needed to grow into a whole new cake!
To start, scientists carefully take the samples from healthy plants and clean them to make sure there is no dirt or bacteria around. They then put these samples into a special container with a special liquid that has all the nutrients and vitamins needed to grow into new plants.
Over time, the liquid will make the samples grow into tiny little plants. These little plants are called "calluses" and they sort of look like warts. From the calluses, new plants can be grown by transferring them into soil and giving them light and water.
This process has many benefits, such as being able to produce a lot of plants quickly that all have the same traits as the original sample plant. This is very useful for farmers who want to grow a lot of the same crop, and for scientists who want to study plants in a controlled environment.
In conclusion, plant tissue culture is like growing a whole new cake from a few crumbs!