Question

In maize, hybrid vigour is exploited by:

• A. Inducing mutations
• B. Bombarding the seeds with DNA
• C. Crossing of two inbreed parental lines
• D. Harvesting seeds from the most productive plants

Answer 1

The correct option is C Crossing of two inbreed parental lines

In maize, hybrid vigour or heterosis is exploited by crossing of two inbred parental lines. Hybrid varieties were first developed in maize, which is a cross-pollinated crop. In such crops, the parents of hybrid varieties are, ordinarily, inbred lines.