Encyclopedic Dictionary of Plant Breeding and Related by Rolf H. J. Schlegel

By Rolf H. J. Schlegel

Encyclopedic dictionary comprises transparent and worthwhile definitions of the phrases linked to plant breeding and comparable scientific/technological disciplines. offers precious tables, examples, and breeding schemes to make the information effortless to entry and make the most of.

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Alloplasmic rye containing a wheat cytoplasm); usually leads to meiotic disturbances and sterility gene alloploid (allopolyploid): a plant that arises after natural or experimental crossing of two or more species or genera; they may contain genomes of the parents in one or more copies cyto >>> amphiploid >>> Figures 3, 8 alloploidy >>> alloploid >>> allopolyploid allopolyploid: plants with more than two sets of chromosomes that originate from two or more parents; the sets contain at least some nonhomologous chromosomes cyto >>> Figure 3 >>> Table 17 allopolyploidy >>> allopolyploid allosome: a chromosome deviating in size, form, or behavior from the other chromosomes (autosomes), such as the sex chromosome or B chromosome cyto >>> heterochromosome allosteric: an enzyme whose activity is altered when its structure is distorted by an organic compound at a nonsubstrate site phys chem allosteric effect: the binding of a ligand to one site on a protein molecule in such a way that the properties of another site on the same protein are affected chem allosteric transition: a change from one conformation of a protein to another conformation chem allosubstitution: the replacement of a chromosome or chromosome arm by an alien chromosome or chromosome arm cyto allosynapsis >>> allosyndesis allosyndesis: chromosome pairing of completely or partially homologous (homoeologous) chromosomes cyto allotetraploid syn amphidiploid: a plant that is diploid for two genomes, each from a different species cyto >>> Figure 8 24 Encyclopedic Dictionary of Plant Breeding and Related Subjects allotetraploidy >>> allotetraploid allotopic: a type specimen of the sex opposite that of the holotype bot; in immunology, an antibody that acts as an antigen to other antibodies of the same species that have variant molecular sites meth allozygosity: homozygosity in which the two alleles are alike but unrelated gene allozygote: a zygote heterozygous for different mutant alleles gene allozyme: isoenzymes of protein nature whose synthesis is usually controlled by codominant alleles and inherited by monogenic rations; they show a specific banding pattern if separated by electrophoresis phys >>> Table 29 alluvial soil: soils developed on fairly recent alluvium (a sediment deposited by streams and varying widely in particle size); usually they show no horizon development agr alpha amylase >>> falling number alpha complementation (of beta-galactosidase): pUC18 and similar vectors contain only a small part of the whole gene for beta-galactosidase; this small part gives rise to a truncated protein that forms an enzymatically active hetero dimer with a specific mutant beta-galactosidase biot alpha helix: the right-handed, or less commonly left-handed, coillike configuration of a polypeptide chain that represents the secondary structure of some protein molecules gene alpha level >>> significance level alpha-bromonaphthalene: a chemical agent that is used for artificial chromosome condensation; for several hours root tips are treated with a saturated water solution prior to staining cyto Alternaria: a genus of fungi; it forms yellowish-brown conidia that are divided by transverse and longitudinal septa; there are many species, including important plant pathogens (early blight of potato, Alternaria solani; black rot of carrot and rape, A.

Caused by Colletotrichum lindemuthianmum in dwarf bean, Elsinoe ampelina in grape, Kabtiella caulivora in clover, Gloeosporium ribis glossulariae in gooseberry, Colletotrichum linicolum in linseed, C. oligochaetum in cucumber, C. graminicolum in rye and maize, or C. , poisonous baits or copper stripping) hort meth >>> C banding >>> G banding banding pattern: the linear pattern of deeply stained bands and weakly staining interbands that results from more or less defined local differences in the degree of DNA compactation along the chromosome cyto band-pass: a microscopic filter that passes light of a certain restricted range of wavelength micr band-seeding: placing forage crop seed in rows directly above but not in contact with a band of fertilizer agr bar chart >>> bar diagram >>> histogram bar code: a pattern of light and dark lines on labels that can be read by a light pen for direct entry into a computer; used for tagging and labeling of plants, seed accessions, etc.

Radicina and A. 1 nanometer); the unit is named after Swedish pioneer of spectroscopy A. J. , in the auricles, awns, nodes, and coleoptiles of many cereals) chem phys anthoxanthin: the yellow- or orange-colored matter of yellow flowers and fruits bot 34 Encyclopedic Dictionary of Plant Breeding and Related Subjects anthracnose: a general term for any of several plant diseases in which symptoms include the formation of dark and often sunken spots on leaves, fruits, etc. , caused by Colletotrichum lindemuthianmum in dwarf bean, Elsinoe ampelina in grape, Kabtiella caulivora in clover, Gloeosporium ribis glossulariae in gooseberry, Colletotrichum linicolum in linseed, C.

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