Final answer:
Mendel performed hybridizations by transferring pollen from the anther of the male plant to the female ova.
Step-by-step explanation:
Mendel performed hybridizations in plants by manually transferring pollen from the anther of a mature pea plant to the stigma of a separate mature pea plant. The anther is part of the male structure (stamen) that produces male gametes (pollen), while the stigma is part of the female structure (pistil) that receives the pollen and guides it to the female gametes (ova) in the ovary.