Citrus research is a field of study that focuses on the cultivation, genetics, physiology, and utilization of citrus fruits such as oranges, lemons, limes, grapefruits, and tangerines. This research aims to improve citrus fruit quality, productivity, disease resistance, and post-harvest storage. It also looks at the nutritional benefits and potential health properties of citrus fruits. Citrus research may involve studies on breeding new citrus varieties, identifying and managing citrus diseases, assessing the impact of environmental factors on citrus production, and exploring innovative techniques for citrus cultivation. Overall, citrus research plays a crucial role in the sustainable production and advancement of the citrus industry globally.