It seems to me that the term "crop plants" you have often heard in daily life.For the first time about this concept is mentioned on the lessons of natural history in junior secondary school.But in this article I propose to reveal this concept is wider dwell on these kinds of flora of our planet, to understand the history of their origin and the benefits they can bring to us.
Section 1. crops.Definition
This type of plants, in contrast to the wild, specially grown man.What for?Well, the goals can be very different.Typically, in order to obtain certain foods or as feed for farm animals.Sometimes they even used as therapeutic drugs.
scholars argue that cultural plant has its own area, which means that the artificial creation of certain climatic conditions, it can be grown everywhere, that is,regardless of the place of origin of the original.Unfortunately, however, no species can spread naturally.
Section 2. Crop plants and the history of their "domestication»
If you delve into the history, we can conclude that this type of plant cultivation began a long time ago, back in the stone age.It was then, in addition to hunting and gathering, to grow native thought of what he needed.He began to collect the seeds and throw them in the pre-loosened and moistened soil.
took a little more time, and the old man who had already begun to lead a more settled life, learned tolerably well take care of the crops.Of course, it took effort and patience, but the plants are planted and watered regularly released from the ubiquitous weed.Around especially valuable species even erected a fence in order to protect plants from trampling or eating many animals.
At first artificial selection was quite unconsciously, culture and the best were chosen based solely on consumer qualities, for example, larger fruits or sweet taste.But this subsequently led to the creation of cultivated plants.
very first still very primitive agriculture of the Bronze Age gave rise to the emergence of large centers on the cultivation of a particular type.Subsequently, most of these homes, as a result of travel, wars and mass merchandisers, flora began to spread widely across the globe.
Section 3. Cultivated plants and their types
Frankly, there are several ways to classify all crop plants of the planet.In this article I will try to tell you about the most basic.
Quite often these plants are classified by taking as the basis of their economic purpose.As a result, it appears that there are the following groups:
- fodder;
- dyeing;
- drugs;
- honey;
- food;
- spinning;
- specifications.
I managed to find another classification, but, because of its inconvenience is used much less frequently.In accordance with her crop plants are considered on the basis of substances contained within are:
- alkaloidosoderzhaschimi;
- protein-containing;
- fiber;
- fatty oilseeds;
- krahmalonosnymi;
- sugar-based;
- ether-oil.
But the most logical and the most frequently used is considered classification, which was based on the sectoral principle.In accordance with this culture are divided into:
- vegetables (root, leaf, onion, fruit, pryanoaromaticheskie, stem);
- fruit (stone fruit, nut, pome, subtropical, citrus fruits, berries);
- field (melons (according to some scholars), legumes, cereals, tubers, forage grasses, roots, cereals, medicines, oil, spinning, tobacco, essential-oil).
addition, identified two distinct groups: the vines and ornamental plants that are engaged in, respectively, viticulture and floriculture.
