The modern technique in the field of crop variety improvement is known as ________.

Crop variety improvement:

1. It involves methods to modify plants genetically for a better yield.
2. Crop variety improvement is possible by two methods-
   • Hybridization
   • Genetic engineering
3. Genetic engineering is a modern technique in the field of crop variety improvement in which desired gene from one organism is introduced into another organism and in the case of plants, this results in the development of genetically modified crops.

Final answer: The modern technique in the field of crop variety improvement is known as genetic engineering.