What do grafting experiments in cocklebur plants demonstrate about the floral hormone?
The hormone is produced only in the roots.
The hormone is not translocated in plants.
The hormone is responsible for root development.
The hormone can be translocated between plants.
The grafting experiments in cocklebur plants provide evidence that the floral hormone can be translocated from one plant to another, indicating that the hormone can move between different plant tissues through grafting.
Option 4 is the correct answer.