Species and cultivars
a) European plum (Prunus domestica):
- Origin : North America
- Vigorous tree i.e. tree height is 8-10 m
- Twigs and under surface of leaves are covered with small hairs
- Fruit shape round
- Cultivated at higher elevation (13oo-2000m)
- High chilling requirement (1000-1200 hrs)
- Fruits born in spurs
b) Japanese plum (Prunus salicina):
- Origin: China
- Tree height is small
- Hair is absent (glabrous)
- Heart shaped fruit
- Cultivated at lower heights (1000-1600m)
- Low chilling requirement (700-1000hrs)
- Fruits born in spurs and 1 year old shoots