Plant Breeding

In restricted sense a hybrid is a cross between two genetically different (homozygous) inbred lines. Such a cross is also called a “F1-hybrid” or a single cross.

Products of a series of other crosses also may be called hybrids. In some plant species, it is not possible to create completely homozygous lines: due to inbreeding depression, they lose their fitness after a few selfings. Hybrids are then made by crossing lines that only have been selfed for a few generations.

Examples: leek, cichory.

Key Document Information

Authors: Prof. Dr. ir. Dirk Reheul

Subject: Breeding

Publication Date: August2012


Contributors: Shiphar Mulumba

Format: pdf

Language: English

Keywords: Breeding, Dirk Reheul, Hybrid breeding, plant breeding


Learn Everything You Ever Wanted to Know about Sweetpotato!

13 Trainer of Trainers Modules in 4 Languages



Follow us

About us

This site provides a venue for sweetpotato scientists, practitioners, and farmers to share, discuss, and generate new knowledge. Information is also available for the general public to learn more about sweetpotato. The goal is to build a vibrant community of practice, providing easy access to technical and scientific information concerning sweetpotato. Anyone who registers can contribute to the site. Together we will work to enhance nutrition and food security for millions of people.

Get started

The global meeting place for people interested in all things related to Sweetpotato. Share your research and experience, ask and answer questions, meet