• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 192
  • 85
  • 82
  • 74
  • 28
  • 9
  • 5
  • 5
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 1
  • Tagged with
  • 521
  • 119
  • 119
  • 106
  • 97
  • 90
  • 85
  • 77
  • 50
  • 50
  • 50
  • 48
  • 44
  • 43
  • 42
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

Isolation, structures and properties of anthocyanins and wine pigments / by Robert E. Asenstorfer.

Asenstorfer, Robert E. January 2001 (has links)
Includes bibliographical references (leaves 218-227). / xviii, 227 leaves : ill. (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This study concerns the structures, equilibrium distributions and formation of pigments found in red wine... A new method was developed for the isolation of C4-substituted pigments from the wine and grape marc extracts which was based on the reactivity of anthocyanins with bisulphite ion to form anionic bisulphite addition products. / Thesis (Ph.D.(Ag.Sc.))--Adelaide University, Dept. of Horticulture, Viticulture and Oenology, 2001
82

A study of the interaction between susceptible and resistant grapevines and phylloxera / by Alison Valerie Kellow.

Kellow, Alison Valerie January 2000 (has links)
Includes bibliographical references. / xiii, 183, [58] leaves : ill. (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This thesis comprises a study of the interaction between grapevine roots and the gall-forming pest grape phylloxera (Daktulospaira vitifoliae Fitch). / Thesis (Ph.D.)--Adelaide University, Dept. of Horticulture, Viticulture and Oenology, 2001
83

Sugar accumulation in the developing grape berry / by Spencer C. Brown

Brown, Spencer Craig January 1981 (has links)
Typescript (photocopy) / xxv, 272 leaves : ill., (some col.) ; 30 cm / 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 Plant Physiology, 1981
84

Early diagnosis and detection of Eutypa dieback of grapevines.

Lardner, Richard January 2003 (has links)
Eutypa dieback of grapevines, caused by Eutypa lata, is a major cause of reduced longevity in vineyards worldwide. The fungus grows in the woody tissue of infected vines, producing translocatable toxins that cause foliar symptoms of the disease. By the time foliar symptoms are evident the pathogen may have become well established in the vine. One aim of this study was to develop DNA markers to allow rapid reliable identification of E. lata and to detect the pathogen in infected wood. The second aim was to analyse secondary metabolite production by E. lata in order to gain information on the compounds responsible for the foliar symptoms of the disease and to identify metabolites which could be used as markers to detect the early stages of the disease prior to the expression of foliar symptoms. In addition, genetic variation of the pathogen was assessed using RFLP and RAPD analysis. Two techniques were used to develop DNA markers; first, SCAR markers derived from RAPD fragments were developed and, second, an E. lata genomic DNA library was constructed, from which DNA fragments specific to E. lata were identified. These markers were used in either PCR- or Southern hybridisation-based assays to detect the pathogen in infected wood. PCR-based detection of the pathogen in infected wood was prone to inhibition by phenolic compounds, however, Southern hybridisation techniques were capable of detecting E. lata in wood. Genetic variation among 38 isolates of E. lata was assessed using six randomly selected clones from the genomic DNA library. A subset of 11 isolates was subjected to RAPD analysis using 10 random primers. Considerable genetic diversity, in terms of RFLP and RAPD profiles, was observed among isolates. There was no apparent correlation between grouping of isolates following neighbour joining analysis and either host species or geographic origin of isolates. The RAPD and RFLP profiles of two isolates differed significantly from the majority of the other isolates. These isolates, which were morphologically similar to all other isolates, were subsequently found not to be E. lata. Secondary metabolite production of 11 isolates was analysed by HPLC following growth on a range of media. A wider range of secondary metabolites was detected in E. lata than has previously been reported. Two of the secondary metabolites, eutypine and an unidentified compound with a retention time of 19.6 min, were produced by eight of nine isolates of E. lata. Neither of the non-E. lata isolates produced these compounds. It was concluded that the remaining isolate of E. lata may have lost the ability to produce these compounds following storage. Whilst a wider range of isolates needs to be screened before a candidate marker can be selected, these results suggest that certain compounds are present in the majority of E. lata isolates and, hence, may prove suitable markers for the detection of the pathogen prior to the expression of foliar symptoms. The molecular probes developed in this study will allow the rapid and reliable identification and detection of E. lata in grapevine cane or wood. These probes also have the potential to be used as a research tool to gather information on the epidemiology of the disease and to assess the efficacy of potential control agents against E. lata. Suitable control measures could then be applied to vines which have been shown by the use of chemical markers to have latent infection. Used in combination, therefore, the DNA and biochemical markers could facilitate improved management of eutypa dieback. / Thesis (Ph.D.) -- University of Adelaide, School of Agriculture and Wine, 2003.
85

Structure and chemistry of flavour precursors in grapes /

Strauss, Christopher R. Unknown Date (has links) (PDF)
Thesis (Ph. D.)--Dept. of Organic Chemistry, University of Adelaide, 1983. / 8 leaves of plates in pocket. Includes bibliographical references (leaves 148-154).
86

Viroids in grapevines : transmission via seeds and persistence in meristem-regenerated vines /

Wah, Yan Fong Wan Chow. January 1996 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Plant Science, 1997? / Includes bibliographical references (leaves 127-152).
87

Biosynthesis and translocation of secondary metabolite glycosides in the grapevine Vitis vinifera L. /

Gholami, Mansour. January 1996 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Horticulture, Viticulture and Oenology, 1996? / Copies of author's previously published articles inserted. Includes bibliographical references (leaves 121-144).
88

The absorption, translocation and accumulation of 32P labelled systematic insecticides in grape-vines, with particular reference to their use for the control of Phylloxera vitifoliae Fitch /

Coombe, B. G. January 1956 (has links) (PDF)
Thesis (M. Ag. Sci.)--University of Adelaide, 1957. / Spine title: Systemic insecticides in grape vines. Typescript (copy). Includes bibliographical references (leaf . 82-84).
89

The molecular biology of anthocyanin biosynthesis in grape berry skins /

Boss, Paul K. January 1998 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Horticulture, Viticulture and Oenology, 1998? / Copies of author's previously published works inserted. Addendum enclosed in pocket on back end paper. Includes bibliographical references (leaves 192-221).
90

The biology and ecology of rampion mignonette Reseda phyteuma L. /

St John-Sweeting, Robin. January 1998 (has links) (PDF)
Thesis (M. App. Sc.)--University of Adelaide, Dept. of Agronomy and Farming Systems, 1998? / Includes bibliographical references (leaves 82-89).

Page generated in 0.0339 seconds