The process of breeding two different varieties of crop plants each having a desired characteristics, is known as

1. selection
2. hybridization
3. crossing
4. introduction

Correct Answer: (b) hybridization

Explanation:

 The process of breeding two different varieties of crop plants each having desired characteristics is known as hybridization.

[Extra information:

In biology, and specifically in terms of botany, hybridization is the process of breeding among individuals of the same or different species.

When the individuals undergoing hybridization belong to different species, it is known as interspecific hybridization.

While, when the individuals undergoing hybridization are genetically different organisms but belonging to the same species, are termed as intraspecific hybridization.

Offsprings produced during the hybridization process can be completely fertile, partially fertile, or infertile (sterile).]