University of Duhok

Faculty of Agriculture

Field crops department

Rezgar I. S. A. Sinjari

Plant breeding

Plant breeding can be define as

a science as

well as an art of improving the genetic make up of plant in relation to their economic use.

Contents:

1. define of plant breeding

2. Aims of plant breeding

3. Methods of plant breeding

A- Introduction.

B- selection.

C- Hybridization.

4- Summary.

Objective of plant breeding

Higher yield Improved

qualityDisease

resistance Wider

adaptability

Methods of plant breeding

Introduction

Selection

Hybridization

Mutation

Tissue culture

Polyploidy

Plant Introduction

Types of plant Introduction

Primary introduction

Secondary introduction

Selection:Select a single or group plants which have desirable characters than other from a mixed population containing variation.

Types of selection

Mass selection

Pure line selection

Pedigree method

Bulk method selection

hybridization:

it refers to cross (mating) between difference genotypes in genetic to transfer one character or some characters.

Types of hybrids

Single cross hybrids

Double cross hybrids

Three way cross hybrid

Summary of lecture

Plant breeding

(as science and art)

Hybridization

introduction

mutation

selection

Thank You for Your Attention