The life cycle of a plant
Method of reproduction
- asexual reproduction: from a part of the plant a new plant grows (clone)
- sexual reproduction seed is combination of egg cell and pollen grain
Asexual life cycle
Potato tuber
apple
scionwood
cutling
The sexual life cycle of a plant
apple
Apple is mainly a cross pollinator
because of self-incompatibility
pollination scheme in apple varieties
is pollinated by
Selfincompatibility:
egg cell is genetically incompatible with
pollen grain of the same plant)
(recognition at stigma) cross fertilisation
x = compatible
x = self-compatible
= self-incompatible