Leaf rust

Genetics, polyploidy, and inheritance

Genetics, polyploidy, and inheritance

This topic explores the genetic makeup of coffee species, how polyploidy shaped Arabica’s evolution, and why inheritance patterns are key to breeding programs and future resilience.

Arabica vs Canephora (Robusta) vs Liberica/Excelsa

Arabica vs Canephora (Robusta) vs Liberica/Excelsa

This topic compares the three main commercial coffee species—Arabica, Robusta (Canephora), and Liberica/Excelsa—covering their genetics, cultivation environments, bean traits, flavor profiles, and market roles.