Answer:
data from his experiments
Step-by-step explanation:
Interestingly, at the time Gregor Mendel primarily performed experiments with pea plants and then recorded his results.
In fact, it is believed that Mendel's genetic experiments took a period of about eight years (1856-1863) after which he published data from his experiments in 1865. It was this data from his experiments with pea plants that led to his development of the theory of inheritance.