The prevention of growth and or spread of unwanted plants.
A plant growing in a location where it is not wanted, often competing with cultivated plants.
Diminished or failed response of PLANTS to HERBICIDES.
Pesticides used to destroy unwanted vegetation, especially various types of weeds, grasses (POACEAE), and woody plants. Some plants develop HERBICIDE RESISTANCE.
A plant genus of the family EUPHORBIACEAE, order Euphorbiales, subclass Rosidae. Commercial natural RUBBER is mainly obtained from Hevea brasiliensis but also from some other plants.
The science, art or practice of cultivating soil, producing crops, and raising livestock.
A plant species in the CHENOPODIUM genus known for edible greens.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
A plant genus in the CHENOPODIACEAE family.
The presence of bacteria, viruses, and fungi in the soil. This term is not restricted to pathogenic organisms.
The reproductive organs of plants.
The terminal segment of the LARGE INTESTINE, beginning from the ampulla of the RECTUM and ending at the anus.
Failure of voluntary control of the anal sphincters, with involuntary passage of feces and flatus.
Measurement of the pressure or tension of liquids or gases with a manometer.
Recording of visual and sometimes sound signals on magnetic tape.
The storing or preserving of video signals for television to be played back later via a transmitter or receiver. Recordings may be made on magnetic tape or discs (VIDEODISC RECORDING).
A food group comprised of EDIBLE PLANTS or their parts.
A plant genus of the family ERICACEAE.
A class of BRYOPHYTA which is best known for Sphagnum forming PEAT bogs.
The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants.
A plant genus of the family CUPRESSACEAE. The species are slow growing coniferous evergreen trees or shrubs.
Slender-bodies diurnal insects having large, broad wings often strikingly colored and patterned.
A republic in western Africa, south of GUINEA and west of LIBERIA. Its capital is Freetown.
Collections of facts, assumptions, beliefs, and heuristics that are used in combination with databases to achieve desired results, such as a diagnosis, an interpretation, or a solution to a problem (From McGraw Hill Dictionary of Scientific and Technical Terms, 6th ed).
Prolamins in the endosperm of SEEDS from the Triticeae tribe which includes species of WHEAT; BARLEY; and RYE.
A plant genus of the family LILIACEAE. Members contain steroidal saponins.
A plant genus of the family GERANIACEAE. Geranium is also used as a common name for PELARGONIUM.
Cell surface receptors that bind to ACETYLGLUCOSAMINE.
A plant genus of the family FABACEAE. Members contain wistarin, wisteria lectin and wistariasaponin.
The fleshy or dry ripened ovary of a plant, enclosing the seed or seeds.
Protein or glycoprotein substances of plant origin that bind to sugar moieties in cell walls or membranes. Some carbohydrate-metabolizing proteins (ENZYMES) from PLANTS also bind to carbohydrates, however they are not considered lectins. Many plant lectins change the physiology of the membrane of BLOOD CELLS to cause agglutination, mitosis, or other biochemical changes. They may play a role in plant defense mechanisms.
PLANTS, or their progeny, whose GENOME has been altered by GENETIC ENGINEERING.
Global conflict involving countries of Europe, Africa, Asia, and North America that occurred between 1939 and 1945.
Herbicides that remove leaves from trees and growing plants. They may be either organic or inorganic. Several of the more persistent types have been used in military operations and many are toxic. (From Hawley's Condensed Chemical Dictionary, 11th ed)
A powerful herbicide used as a selective weed killer.
An herbicide with strong irritant properties. Use of this compound on rice fields, orchards, sugarcane, rangeland, and other noncrop sites was terminated by the EPA in 1985. (From Merck Index, 11th ed)
The aggregate business enterprise of building.
The application of smoke, vapor, or gas for the purpose of disinfecting or destroying pests or microorganisms.
Affection; in psychiatry commonly refers to pleasure, particularly as it applies to gratifying experiences between individuals.