Variety — may refer to: *Variety (botany), a rank in botany below that of species. *Variety (cybernetics), the number of possible states of a system or of an element of the system. *Variety (linguistics), a concept that includes for instance dialects,… … Wikipedia
Variety (botany) — In botanical nomenclature or biological nomenclature, variety is a low level taxonomic rank below that of species and signifies members of different populations can interbreed easily, but not usually such that all traits (appearance attributes)… … Wikipedia
Plant breeders' rights — (PBR), also known as plant variety rights (PVR), are intellectual property rights granted to the breeder of a new variety of plant (or to another person or entity that can claim title in the new plant variety by, for example, agreement with the… … Wikipedia
plant disease — ▪ plant pathology Introduction an impairment of the normal state of a plant that interrupts or modifies its vital functions. All species of plants, wild and cultivated alike, are subject to disease. Although each species is… … Universalium
Plant breeding — is the art and science of changing the genetics of plants in order to produce desired characteristics.[1] Plant breeding can be accomplished through many different techniques ranging from simply selecting plants with desirable characteristics for … Wikipedia
Plant physiology — is a subdiscipline of botany concerned with the function, or physiology, of plants.Salisbury, Frank B. Cleon W. Ross, 1992. Plant physiology , 4th ed. (Belmont, California: Wadsworth Publishing). ISBN 0 534 15162 0] Closely related fields include … Wikipedia
Plant nutrition — is the study of the chemical elements that are necessary for plant growth. There are several principles that apply to plant nutrition.Some elements are essential, meaning that the absence of a given mineral element will cause the plant to fail to … Wikipedia
plant patent — A patent issued for new strains of asexually reproducing plants. Plant patents last for 20 years from the date the patent is filed. Certain sexually reproduced plants also may be protected under the Plant Variety Protection Act of 1970 for… … Law dictionary
Plant Variety Protection Act — The Plant Variety Protection Act of 1970 (PVPA), 7 U.S.C. §§ 2321 2582, is an intellectual property statute in the United States. The PVPA gives breeders up to 25 years of exclusive control over new, distinct, uniform, and stable sexually… … Wikipedia
plant breeding — Introduction application of genetic (genetics) principles to produce plants that are more useful to humans. This is accomplished by selecting plants found to be economically or aesthetically desirable, first by controlling the mating of… … Universalium
