Principles of Plant Breeding

Introduction

• Qualitative characters: Character under simple genetic control. i. e governed by one or few genes (Oligogenes)are known as qualitative characters.E.g. Flower colour, Fruitshape
• Quantitative characters: Character under complex genetic control. i. e governed by many genes (polygenes)are known as quantitative characters .E.g. Grain yield, drought tolerance, etc.