Crop breeding is the science and practice of developing new and improved crops with desirable traits such as higher yield, disease resistance, and improved nutritional content. This process typically involves selecting and crossing plants with desirable traits to create new varieties that exhibit the desired characteristics. Crop breeding plays a crucial role in ensuring food security, as it allows farmers to grow crops that are more resilient to environmental stresses and provide higher yields. Additionally, crop breeding helps to address challenges such as climate change and the need for sustainable agriculture practices.