What is considered a primary advancement in crop management through biotechnology?

The development of pest-resistant crop varieties represents a significant advancement in crop management through biotechnology. This approach utilizes genetic engineering techniques to introduce specific traits that enhance a plant's ability to withstand pest attacks. By incorporating these traits, such as producing natural insecticides or enhancing the plant's defensive mechanisms, farmers can reduce their reliance on chemical pesticides.

This not only helps in managing pest populations more effectively but also minimizes the environmental impact associated with pesticide use. Additionally, pest-resistant varieties can lead to increased yields and improved crop quality, making farming more sustainable and economically viable.

The other options do not adequately represent the core advancements in crop management linked to biotechnology. Improving transportation methods, using non-renewable resources, or focusing solely on export markets do not directly contribute to enhancements in plant traits through biotechnological innovations. Addressing these aspects is critical for a comprehensive understanding of how biotechnology is transforming agricultural practices.