Settlement (lat. Seleccio Selection, selection) is a science for creating new and improving existing varieties of cultural plants, the breed of domestic animals and micro-organisms with values and characteristics for human beings. The type, species or strains are referred to as a man-made group of organisms of one species with certain hereditary characteristics and properties, as well as a one-time response to environmental factors.

The emergence and development of sedition as science was linked to the need to address the vital issue of all mankind, such as food. This requires not only the continuous improvement of traditional agricultural practices (improvement of optimum doses of fertilizers, implementation of a range of conservation and improvement of soil fertility, etc.), but also the use of new scientific methods of food production in intensive farming.

The possibility of increasing agricultural output by an extensive means, i.e. by increasing planting areas, has long been exhausted. Therefore, the most efficient and most cost-effective way to increase agricultural productivity is to classify highly productive forms of living organisms. For example, the so-called s. green revolution :/ in the agriculture of Mexico, India and a number of other countries has led to the introduction of low-lying, semi-carlic and carlic varieties of rice, wheat and other evil crops. They are characterized not only by sustainability but also by high productivity. As a result, crop yields increased more than twice.

Main areas of modernity Selections are as follows.

1. To obtain high-yield varieties of plants, high-productive animal breeds and microorganism strains.

2. Improving product quality (e.g. taste, appearance, long-term storage capacity, protein content, carbs, vitamins, etc.).

3. Improving the physiological properties of plants, animals and microorganisms (speedness, disease resistance, pests, environmental hazards, etc.).