People started to domesticated plants for the purpose of growing food crops.
This is a technique or method through which the problem of food can be solved as the fertile and unused land can be used for cultivation. It is the process in which the wild plants have been developed or convert into food crop plants with the help of artificial selection.
The process of plant domestication usually involves an early hybridization proceeding after selective breeding. Plant domination probably began around 8,000 BCE and it includes oats, rye, barley, lentils, peas, and various fruits and nuts.