Glossary

A pollen tube is the structure that grows from a germinating pollen grain toward the ovule, carrying the male reproductive cells. It is part of the process between pollination and fertilization in mango flowers. Suitable pollen placement is therefore only an early step, not proof that a seed and fruit will develop. Temperature, compatibility, and flower condition can influence success. This concept helps explain why a tree can have abundant insect visits yet retain only a small share of its flowers as fruit.