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Genotype differences in resistance to moisture stress in barley / Laurence George Lewin.Lewin, L. G. January 1980 (has links)
1 v. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Agronomy, 1980
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Marker assisted backcrossing for gene introgression in barley (Hordeum vulgare L.) / by Stephen P. Jefferies.Jefferies, Stephen P. January 2000 (has links)
Bibliography: leaves 183-211. / xii, 211 leaves ; col. ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This study evaluates the backcross breeding method for the introgression in barley of agronomically important traits into a malting quality background using molecular markers. / Thesis (Ph.D.)--University of Adelaide, Dept. of Plant Science, 2000
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The cytology and breeding behavior of a complete interchange stock in barley (Hordeum vulgare L.)Morgan, Sharon Lee, 1954- January 1978 (has links)
No description available.
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Novel alleles from wild barley for breeding malting barley (Hordeum vulgare L.) / by Jason K. Eglinton.Eglinton, Jason Konrad January 2003 (has links)
"November, 2003" / Bibliography: leaves 174-191. / viii, 196 leaves : ill. (some col.), photos (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This study aims to identify and characterise novel alleles for key malting quality genes from wild barley, wild barley being a source of novel genetic variation that could be exploited to develop superior barley varieties. / Thesis (Ph.D.)--University of Adelaide, School of Agriculture and Wine, Discipline of Plant and Pest Science, 2004
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Marker assisted backcrossing for gene introgression in barley (Hordeum vulgare L.)Jefferies, Stephen P. January 2000 (has links) (PDF)
Bibliography: leaves 183-211. This study evaluates the backcross breeding method for the introgression in barley of agronomically important traits into a malting quality background using molecular markers.
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Exploiting Hordeum vulgare subsp. spontaneum genetic resources : diversity analysis and germplasm developmentMatus, Iv��n Ariel 19 December 2002 (has links)
Wild barley (Hordeum vulgare subsp. spontaneum) could be a source of useful
genes for improving cultivated barley. The useful genes present in Hordeum
vulgare subsp. spontaneum may be new alleles at described loci, or these may be
entirely new genes in the sense that there is limited allelic variation at these loci in
the cultivated germplasm pool. This research was directed at gene discovery in wild
barley and involved two steps: (i) characterization of diversity using genetic
markers and (ii) development and characterization of novel germplasm for gene
discovery.
Simple Sequence Repeats (SSRs) of known map location were used to survey three
representative groups of barley germplasm: a sample of crop progenitor (Hordeum
vulgare subsp. spontaneum) accessions, a group of mapping population parents,
and a group of varieties and elite breeding lines. The objectives were to determine
the informativeness and utility of SSRs in differentiating and classifying the three
sets of barley germplasm. Crop progenitors had the highest number of alleles per
SSR locus, followed by mapping population parents and elite breeding lines. The
cluster analysis indicated a high level of diversity within the crop progenitor
accessions and within the mapping population parents. It revealed a much lower
level of diversity within the elite breeding germplasm.
A set of Recombinant Chromosome Substitution Lines (RCSLs) representing
introgressions of Hordeum vulgare subsp. spontaneum genome in to a cultivated
barley background were developed using the Advanced Backcross strategy. An
accession of Hordeum vulgare subsp. spontaneum was the donor parent and the
variety "Harrington" was the recurrent parent. The RCSLs were developed via two
backcrosses to the recurrent parent followed by six generations of selfing. The
genomic architecture of the RCSLs was determined by molecular marker
fingerprinting with SSRs. The consequences of introgressions of Hordeum vulgare
subsp. spontaneum genome segments into the recurrent parent were assessed in
terms of inflorescence yield components, malting quality traits, and domestication-related
traits. Hordeum spontaneum subsp. spontaneum, despite its overall inferior
phenotype, contributed favorable alleles for some characters of agronomic
performance. In other cases, the introgressions caused a disruption of the
Harrington phenotype, a "reverse genetics" approach to gene discovery. / Graduation date: 2003
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Quantitative trait locus mapping of yield and yield components in barley (Hordeum vulgare L.)Traore, Abdoulaye 23 December 1993 (has links)
Higher grain yield is a key objective in barley (Hordeum vulgare. L) breeding.
Despite extensive research on the genetics of yield and its components, selection for
yield per se is still the most extensively employed because of negative relationships
among components, modest correlations between yield and any particular component,
and the additional resources required for measuring the components. The development
of quantitative trait locus (QTL) detection procedures allows for an alternative
approach to this issue. The objective of this investigation was to determine the
biological basis of observed grain yield QTLs, with particular reference to yield
components and yield-related traits. Yield and yield component traits were assessed in
a population of spring barley doubled haploids from a cross of 'Steptoe' x 'Morex'.
The scope of inference of the experiment was broadened by using reference QTL data
sets from the multiple environment assessment of the same population. Both positive
and negative relationships among yield, component, and related trait QTLs were
observed. The QTL data indicate that indirect selection for yield via yield
components would be ineffective. The yield QTL effects in this germplasm were
largely attributable to lodging and basal internode length. Localization and
interpretation of yield QTLs may be useful for studying orthologous gene expression
in other germplasm and in developing multiple character selection strategies. / Graduation date: 1994
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Effects of Hordeum vulgare and Hordeum bulbosum genotypes, seed age, culture methods and plant growth regulators on barley haploid productionQian, Jiajing January 1992 (has links)
Four experiments were conducted with the objectives of (i) comparing the suitability of various H. bulbosum clones for haploid production, (ii) determining the parental effects of H. bulbosum and barley genotypes on percentage of pollinated florets yielding caryopses with rescuable embryos and on embryo viability, (iii) comparing different stages for embryo culture and caryopsis culture, and (iv) attempting to produce barley haploids directly from cultured immature caryopses. The results demonstrated: that reproductive characteristics of H. bulbosum clones varied with environmental conditions; that the hybrid H. bulbosum clones MBC-3 and MBC-4 were superior to their parents Cb2920 and Cb2929 as pollen donors; that both parental genotypes and date of harvesting after pollination had large effects on percentage of pollinated florets yielding caryopses with rescuable embryos and on embryo viability; that haploid plantlets can be generated from haploid caryopsis culture without embryo rescue, but only at a low frequency and with a slow rate of germination.
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Changes in storage proteins and nucleic acids during development of barley endospermHasell, Yvonne P. C. (Yvonne Paulene Claudette) January 1975 (has links)
No description available.
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Effects of Hordeum vulgare and Hordeum bulbosum genotypes, seed age, culture methods and plant growth regulators on barley haploid productionQian, Jiajing January 1992 (has links)
No description available.
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