These properties of vegetables are, of course, could not yet explain, but, more importantly, carefully memorized manifested a certain action of plants. Since little information is initially multiplied from age to age, and the "piggy bank" of human knowledge about plants, more and more enriched. With further population growth and increased need for many, especially valuable at this stage of development, types of plants, including vegetables. Nature does not have time to replenish their resources. This prompted the man to the introduction (the introduction to the culture) of such plants, and thus elevated him to a new stage of development. A new direction in plant introduction was associated with the expansion of human activities, with the emergence of commodity exchange between the population of individual districts and then states, wars, and travel. It is from this direction due to the introduction of useful plants have the appearance of the home potatoes, sunflower, tomato, cucumber, parsley, dill, pepper and other valuable crops, without which it is now hard to imagine our existence. Thus, the introduction to the culture of unknown species of wild vegetables from the local wild flora or alien or attraction for the cultivation of other countries, new types of crops are constantly replenished vegetable range of many peoples, Another feature of these two trends is the introduction of plant breeding activities of man. Selection can not only improve by the nature of the types and forms of plants, selecting the most valuable among them or creating new varieties, but also actively interfere in the process of speciation. The achievements of modern plant breeding related to the third direction in the introduction of plants, a feature which is that taken from the overseas. domestic or wild or cultivated plants or new varieties of plants themselves are not naturalized (not entered directly into the culture), and is used only to any part of their genetic material for the "construction" of new varieties are widely cultivated crops. Introduction of plants - an important reserve diversification of vegetables.