Breeding of Vegetable, Spice and Tuber crops (2+1)

Genetic basis and Types of Mass Selection

Genetic basis of Mass Selection

• Mass selection is used in both self pollinated and cross pollinated species.
• In case of cross pollinated species the mass selected varieties are heterozygous and heterogeneous.
• In self pollinated species, these varieties are a mixture of several pure lines, means homozygous but heterogeneous.

Types of Mass Selection

1. It can be of two types as given below.
2. Positive mass selection
3. Negative mass selection