Growing of food grain crops (cereals and pulses). Grain crops. Grain crops, for example, wheat, oats, rice, corn, soybean, and beans, all have different responses to a changing climate. The two main types of commercial grain crops are cereals and legumes. The term specifically refers to seeds of plants of the grass family, such as wheat, corn, and rice; seeds of non-edible grass species are also often called "grains." Pulses includes baked beans; red, green, yellow and brown lentils; chickpeas (chana or garbanzo beans) garden peas, black-eyed peas, runner beans, broad beans (fava beans), kidney beans, butter beans (Lima beans), haricots, cannellini beans, flageolet beans, pinto beans and borlotti beans.