a group of organisms occurring in nature and assumed to be genetically almost identical (Johannsen, 1903 quoted by C. D. Darlington and K.Mather, The elements of genetics, 1949, London, Allen & Unwin); a population of genetically identical individuals (E. C. Stakman & J. G. Harrar, Principles of plant pathology, 1957, New York, Ronald Press Co. A sub- division of a species, subspecies or serotype which may be distinguished from other subdivisions of the species by the possession of some special or usefully diagnostic physiological character ` (Bact. Code, Rec. 8a (2) annot.). a sub- division of a physiologic race; a sub-race.
A genetically homogeneous population composed only of closely similar individuals; a genotypic race or group of organisms.
( Genet population with identical genetic constitution. ( BCFT).
A group of individuals in nature, all with essentially the same genetic constitution. A species consists of several biotypes. A group of individuals with the same genotype. Biotypes may be homozygous or heterozygous.
A population within a species that has distinct genetic variation.
a genotypic race (Lawrence. Taxonomy of vascular plants. 1951. p. 741). Comment: Not a nomenclatural term, and in recent times considered too vague for general use.
organisms sharing a specified genotype or the genotype (or peculiarities) so shared
a group of individuals within a species that share genetic traits
a group of plants within a species (a subset of the original population) that has biological traits, such as resistance to a particular herbicide, not common to the population as a whole
a group of plants within a species that has biological traits that are
a population of plants within the same species that has specific traits in common
A naturally occurring population consisting of individuals with the same genetic makeup
A species of the same plant with differing physical or biological characteristics.
(pl. biotypes) A subgroup within a species usually characterized by the possession of a single or a few characters in common.
A subspecies of organism morphologically similar to but physiologically different from other members of the species. ()