Dictionary of Plant Breeding by Schlegel Rolf H. J.;

Author:Schlegel, Rolf H. J.;
Language: eng
Format: epub
Publisher: Taylor & Francis Group

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obconic: A solid figure with the shape of a cone; widest at the apex and pointed at the base bot

objective: The lens or combination of lenses that first receives the rays from an observed object, forming its image in an optical device, as a microscope micr

objective lens: The lower lens in a microscope that is closest to what is being looked at micr

oblate: Pollen grain with a polar axis shorter than the equatorial diameter, e.g., in >>> Tilia cordata bot >>> pollen

obligate: Restricted to a particular way of life phyt

obligate apomixis: Seed apomixis with maternal offspring of 100% bot

obligate parasite: An organism that cannot live in the absence of its host phyt

obligate weed: A weed never found in the wild stage, but growing only in association with man phyt

oblique: Unequal sides; slanting bot

oblong: Object with round ends and parallel margins, three times longer than wide bot

obpyriform: Pear-shaped, with the wide end toward the apex bot

observation: A data collection strategy in which the activities of subjects are visually examined; the observer attempts to keep his presence from interfering in or influencing any behaviors stat meth

observation tube: >>> eyepiece

obsolete variety: A plant variety that is no longer grown commercially seed

obtuse: Pointed with an angle greater than 90°; a broad pointed apex or base bot

ocDNA: An open circular DNA molecule that has at least one nick; it cannot be supercoiled and has the same density as linear DNA in CsCl/EB density gradients biot

ochre codon: UAA stop codon gene biot >>> non-sense mutation

ocimene: A volatile terpene produced by alfalfa flowers, which give them aroma phys

octopine A rare derivate of an amino acid; it is produced in some crown galls of plants; the controlling genes are part of the T-DNA of Ti plasmids chem phys > > > Figure 62 > > > www.pflanzengallen.de

octoploid: Having eight chromosome sets of identical or different complements cyto

octovalent: Chromosome configuration consisting of eight chromosomes cyto

ocular: >>> eyepiece

OECD: >>> Organization for Economic Cooperation and Development

of gardens: Term used after the Latin name of a plant to denote that the name is commonly but incorrectly used bot

off-grade: Postharvest removal of pathogen-infested or damaged fruit, seeds, or plants by screening procedures; the culled or off-graded material can later be individually analyzed or discarded meth

office action: In patenting biological material, a formal response by a patent examiner regarding a patent application or amendment adm >>> Intellectual Property Rights

offset: A young plant produced by the parent, usually as its base (offshoot) or a small bulb at the base of a mother bulb bot

offspring: >>> progeny

off‑target effect due to genome editing: Unintended cleavage and mutations at untargeted genomic sites with similar but not identical sequences compared to the target site meth biot >>> genome‑editing methods

off-type: An individual differing from the population norm in morphological or other traits; the term also includes escapes and contaminants (e.g., seeds that do not conform to the characteristics of a variety, uncontrolled self-pollination during production of hybrid seed, segregates from plants, etc.) gene agr

Ogura (cytoplasmic male sterility and fertility-restoring [cms/Rf]

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