Plant production is a field of study that focuses on the cultivation and harvesting of plants for food, fuel, and other products. NECTAR, which is a sweet liquid produced by flowers, is an important plant product that is used in many different industries. SAP, which is a watery fluid that circulates through a plant's vascular system, is also an important plant product that is used in many different industries. Both NECTAR and SAP are essential components of plant production.