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  • 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.
11

Attractivity of plant volatiles and a semichemical-based bait to the western spotted cucumber beetle, Diabrotica undecimpunctata Mannerheim (Coleoptera: Chrysomelidae)

Hongtrakul, Tawatchai 02 December 1997 (has links)
The adult western spotted cucumber beetle (WSCB), Diabrotica undecimpunctata undecimpunctata Mannerheim is considered a major pest of snap beans grown for processing in Western Oregon. Control consists of 1 or 2 insecticide sprays prior to harvest. A commercial semiochemical-based insecticide bait, Adios TIC��, 1.3% carbaryl + 5% buffalo gourd root powder + 0.7% TIC mixture (1,2,4-trimethoxybenzene, indole, and trans-cinnamaldehyde, 1:1:1), was evaluated for the control of WSCB in commercial snap beans. Adios TIC�� did not result in improved WSCB control as reflected by number of beetles and pod damage. Twenty one plant volatile compounds were evaluated for their attractivity to WSCB in snap bean and squash fields by comparing the number of beetles caught on sticky traps in 1 to 3 day periods. The chemicals beta-ionone, benzyl alcohol, and indole consistently attracted significantly more beetles than unbaited traps. An equal part of these chemicals caught more WSCB than those baited with any of the two component mixture blends or even individual components. Captures of WSCB increased significantly as doses of the 1Bb mixture in trap increased. Baited traps placed inside and at the edge of alfalfa fields caught similar numbers of WSCB. More WSCB were caught on traps inside than outside fields. Traps baited with the 1Bb mixture placed at canopy level or at 10-15 cm above canopy caught equal numbers of WSCB. Traps below plant canopy caught fewer WSCB. Most WSCB were caught from 10:00 to 13:00 hrs and from 16:00 to 18:00 hrs. Fresh preparations of IBb were the most attractive to the beetle. The majority of WSCB attracted by the IBb mixture were males (���80%). Its individual components, indole and benzyl alcohol attracted mostly females (���73% and 70% respectively), beta-ionone attracted mostly males (���80%). / Graduation date: 1998
12

Studies on cucumber mosaic virus and its genome : replication in protoplasts, and the use of molecular hybridization

Gonda, Thomas John January 1979 (has links)
xv, 153 leaves : photos., graphs, tables ; 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 Biochemistry, 1980
13

Separation and in vitro translation of the four major species of virion RNA of cucumber mosaic virus

Schwinghamer, Mark Wayne January 1977 (has links)
xii, 115 leaves : ill., tables ; 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 Biochemistry, 1978
14

Gene expression and subgenomic RNAs of cucumber mosaic virus /

Gordon, Karl H. J. January 1983 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, 1984. / Includes bibliographical references (10 unnumbered leaves ).
15

Studies on cucumber mosaic virus and its genome : replication in protoplasts, and the use of molecular hybridization.

Gonda, Thomas John. January 1979 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Biochemistry, 1980.
16

Manganese Stresses and Mineral Nutrition of Cucumber Plants

Crawford, T. W. Jr., Stroehlein, J. L., Kuehl, R. O. 05 1900 (has links)
Cucumber plants in the vegetative phase of growth received deficient, sufficient, or toxic treatment of manganese (Mn) during a 15-day period beginning 43 days after germination. Deficiency and toxicity of manganese both supressed accumulation of fresh and dry weight. Stem length, number of leaves, and number of seconday meristems per plant were not significantly different among Mn treatments. Manganese-deficient plants accumulated less manganese and nitrogen but more copper and iron, and about the same amount of zinc, phosphorus, and potassium as the Mn-sufficient plants. Manganese toxicity caused cucumber plants to accumulate less copper, nitrogen, phosphorus, and potassium, but more manganese, and about the same amounts of iron and zinc as the Mn-sufficient plants.
17

Molecular studies on cucurbit yellow stunting disorder virus

Livieratos, Ioannis January 1999 (has links)
No description available.
18

Gene expression and subgenomic RNAs of cucumber mosaic virus / by Karl H.J. Gordon

Gordon, Karl H. J. January 1983 (has links)
Includes bibliography (10 unnumbered leaves) / 66 leaves, [20] leaves of plates : ill ; 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, 1984
19

Encapsidation of nucleic acids by cucumovirus coat proteins / Baoshan Chen.

Chen, Baoshan January 1991 (has links)
Copy of author's previously published work, inserted. / Bibliography: leaves 83-99. / ix, 99, [43] leaves, [29] leaves of plates : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Investigates an improved method with high efficiency for reassembly of CMV (Cucumber mosaic virus) and TAV (Tomato aspermy virus). Physico-chemical, serological and biological analyses show that the reassembled particles are indistinguishable from the native viruses. / Thesis (Ph.D.)--University of Adelaide, Dept. of Crop Protection, 1992
20

Characterisation of minor RNAs associated with plants infected with cucumber mosaic virus /

Afsharifar, Alireza. January 1997 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Plant Science, 1997. / Includes bibliographical references (leaves 127-138).

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