in the school curriculum in the classroom familiarization with the environment, natural history, biology, provided the study wildlife.As part of the familiarization with the life of flora children learn what cultural and wild plants.The band's name becomes clear after children informed about the types of growing conditions.The deepening and broadening of the concept is due to get acquainted with how a person uses the plant belonging to one group or another.
cultivated and wild plants.Names
2 class of secondary school - this is the period when children begin to receive systematic knowledge about the objects of animate and inanimate nature.An earlier study of the subject is propaedeutic character.But in the second class are introduced, for example, concepts such as cultural and wild plants.
group name becomes clear after the children exercises serving to compare a pair of plants.For example, an apple tree and spruce, birch, and plums, gooseberries and juniper, tomato and mother-and-stepmother, peas and chicory.The teacher offers children to pay attention to where grow compared species, which are necessary conditions for them, caring for them.
After this work the children easily come to the conclusion that all the plants are divided into two large groups.Those who care for the person referred to as cultural.Wild plants have received its name due to the fact that they are growing everywhere.For their development, maturation, fruiting does not require human intervention.
main differences of wild plants from the cultural
for plant growth and development requires certain conditions.Cultural forms such conditions created by man.He looks for a favorable place to land plants, feeding produces them, remove weeds, harvests and protects against pests and diseases.
Wild plants, whose name can be found in numerous reference books, do not need to create special conditions.They adapt to life in the wild.
grounds for classification
Wild plants, names and photos which are so familiar to us, appeared on Earth much earlier cultivated species.In other words, the planet was originally inhabited only by wild plants.They gave early man food, shelter, clothing, work tools.
engaged in gathering, people accumulate experience through which they assessed the positive properties of roots, leaves, stems, fruit of some plants.Gradually man learned the most useful for yourself types to grow close to their own homes and enjoy the results of their work over a longer period of time than it was during the gathering.So began to appear cultivars, as a result of care that improves their taste and other qualities.
Wild plants whose names are well known, are divided into groups.Scientists distinguish among them the grass, trees, shrubs.For example, you can easily determine which group includes nettle, chamomile, birch, hazel, rye and cornflower.I must say that such groups are divided and cultivated plants.
Natural areas and distribution of plant species diversity of
which wild plants are represented, name and their significance in economic activities directly linked to an area of land where they grow.
abundance of food and medicinal wild plant species observed in tropical and sub-tropical humid climate.In the area of tundra and forest tundra plant species diversity leaner, but there can be concentrated large reserves, such as mosses, lichens, used in different sectors of the economy.Herbaceous plants and shrubs that give a good crop of berries, is also not uncommon for the harsh northern regions.
Wild plants: the value of human
Wild plants, examples of whose names are given in textbooks and other reference books, are composed of many useful for the human body substances.Today, we continue the study of this group for the content of protein, carbohydrates, fats, vitamins, minerals, vegetable oils.
Man has long been looking for ways to use wild plants as food.Since ancient times, distributed collection of strawberries, blueberries, blueberry, cranberry and many others.The fruits, leaves, stems consumed both in fresh and in processed form.
Medicinal properties
Among the medicinal raw materials occupy a special place wild plants.The name and value of medicines made on the basis of herbs, parts of trees and shrubs that grow in the wild, has been actively studied and created, and the list has grown considerably.Rich experience in the use of wild plants as medicines is available to traditional healers.
However, the amount is fully understood and used by man as part of medicaments of flora is only 4% of the total number of species that are wild plants.The names of new species are regularly replenished the list.
should be noted that more than half of the raw material intended for pharmaceutical production, supplied by the collection of medicinal plants in the wild.Only a small part of them cultivated.
Terms collecting raw
When collecting medicinal and edible wild plants necessarily need to follow the rules by which you can exclude evidence of poisoning or other adverse effects on the body.Permission is granted to collect a well-known plant species.Those that are questionable in appearance, the use of rules, are not subject to collection.Above-ground parts of the plants are usually harvested before flowering.At this time, shoots and leaves a gentle, do not contain dangerous compounds.Collection of plants is recommended in clear weather in the afternoon when possible moisture dew.
forbidden to collect plants along the road near the landfill, sewers, or industrial facilities.Their products are often assembled burning dust containing dangerous to human health.
Collected materials should not be stacked too tightly.This may lead to damage plants.It usually manifests itself in the darkening of their parts.Burning and prickly plants such as nettle, fresh-water sponge, better to collect the gloves.A tough stems of other convenient cut with a knife.
Parts of plants that have visible damage, such as the build-up, rust, rot, collecting is not recommended.They may include in their composition substances that are harmful to human health.
