Why Mendel selected garden pea plant for his hybridisation experiments ?

Explanation

(i) It is an annual plant and has clear contrasting characters that are controlled by a single gene separately.
(ii) Self-fertilization occurred under normal conditions in garden pea plants. Mendel used both self-fertilization and cross-fertilization.
(iii) The flowers are large hence emasculation and pollination are very easy for hybridsation.