Match the following plant propagation definitions with their appropriate term.
1) Propagation of plants from vegetative parts like leaves and stems
2) Tip of canes are bent to the ground and covered with a small mount of soil. When a new plant has developed at the tip, it can be cut from the parent plant.
3) Process by which segments of different plants are connected and induced to grow together as one plant
4) Growing plants in sterile test tubes to avoid disease. Plants grown in medium and maintained in a special controlled environment room