Tissue culture can be used to help grow plants that might Otherwise reproduce and grow.
For example, embryo rescue is a tissue culture technique where a scientist breaks into the ovary of a plant and removes the developing embryo from a seed before the plant might otherwise abort it.
This technique is commonly used with breeding new cultivars of grapes, maize, and chrysanthemum.
Scientists also use tissue culture to artificially germinate grains of pollen from the anthers of plants.
This process is called androgenesis, and produces plants with half of the number of chromosomes that plant of that species would normally have.
Plants that contain half of the number of chromosomes they would naturally have are called haploids.
Scientisits use this technique because generating haploid plants can make the expression of recessive character traits more visible in a shorter amount of time when compared to using hybrid plants.
It is used to observe different traits like cold tolerance easily in forages and agronomic crops.