Since plant cells are totipotent any part of the plant having actively dividing cell can be grown into a new plant by tissue culture, however, it is the stem mostly used for vegetative propagation.
Shoot is the second part of a plant to grow.
The part of pineapple that you plant to grow pineapples is the the Pineapple Crown.
The stem.
The roots.
Lemons grow on trees.
Bran is a part of the wheat plant.
fruit/ seed
It should be the flowers
Stem (bulb)
the seed splits open and the plant starts to grow.
The part that you eat is part of the root system and grows underground.
leaves