Hybrid vigour in crop improvement is brought about through
Answer Details
Hybrid vigor in crop improvement is brought about through crossbreeding.
Hybrid vigor, also known as heterosis, is the phenomenon where the offspring of two genetically diverse parents exhibit superior characteristics than their parents. Crossbreeding is a method of plant breeding that involves crossing two genetically different varieties to create a hybrid with desirable traits such as improved yield, quality, or disease resistance.
Introduction, mass selection, and inbreeding are plant breeding methods, but they do not produce hybrid vigor. Introduction refers to the introduction of new varieties into an area for cultivation. Mass selection involves selecting the best plants from a population for breeding. Inbreeding refers to the mating of closely related individuals, which often leads to decreased genetic diversity and reduced plant vigor.
Therefore, the correct option for the process that brings about hybrid vigor in crop improvement is "crossbreeding."