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A measurement of greenbug, Toxoptera graminum (Rond.), damage to the root systems and other plant parts of several varieties of wheatOrtman, Eldon Emil. January 1957 (has links)
Call number: LD2668 .T4 1957 O77 / Master of Science
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Inheritance of resistance to anthracnose in watermelonDutta, Sisir Kamal. January 1958 (has links)
Call number: LD2668 .T4 1958 D89 / Master of Science
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Measurement of maize weevil and fungi damage to stored cornMora, Miguel A January 2011 (has links)
Digitized by Kansas Correctional Industries
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Phytophthora megasperma var. sojae race 4 : varietal reactions and inheritance of resistanceSim, Thomas January 2011 (has links)
Digitized by Kansas Correctional Industries
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Effect of growth stage and variety on tolerance of winter wheat (Triticum Aestivum L.) to 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba (2-methoxy-3,6-dichlorobenzoic acid), and bromoxynil (3,5-dibromo-4-hydroxybenzonitrile) /,Mosier, Dwight George January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
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Characterization of virus disease resistance in Lactuca sativaSingh, Rampal January 1994 (has links)
No description available.
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Evolution and spread of paraquat resistant barley grasses (Hordeum glaucum Steud. and H. leporinum Link) / Imam Hidayat.Hidayat, Imam January 2004 (has links)
"February 2004" / Bibliography: leaves 150-185. / xiii, 185 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 project was designed to investgate new resistant populations of Hordeum spp; to assess the role of gene flow in spreading resistance; to determine the fitness of resistant individuals in accelerating resistance evolution; and to identify genetic relationships between resistant and susceptible populations using DNA markers." / Thesis (Ph.D.)--University of Adelaide, School of Agriculture and Wine, Faculty of Sciences, 2005
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Expression of secondary metabolites following manipulations of the C:N ratio in spotted knapweed, Centaurea maculosa Lam.Brodhagen, Marion L. 12 June 1998 (has links)
Spotted knapweed, Centaurea maculosa Lam. (Compositae) is an extremely
successful introduced weed species in the northwestern United States. Multiple factors
may be responsible for its success, including chemical defense. Two different types of
putative chemical defense agents are the focus of this thesis. The first is a bitter-tasting
sesquiterpene lactone, cnicin, which occurs at high concentrations in foliar tissues; the
second is a group of polyacetylenic compounds produced in the roots. This study
represents the first designation of structural identities to polyacetylenic compounds from
North American populations of C. maculosa. Both cnicin and polyacetylenic compounds
have demonstrated biological activity, suggesting roles in chemical defense. In order to
test predictions of chemical defense hypotheses for this plant, concentrations of cnicin
and polyacetylenes were measured in a greenhouse experiment in response to varying soil
nitrogen and light availability. Light and soil nitrogen availability were important in
determining concentrations and content of cnicin, whereas polyacetylene concentrations
were not significantly affected by differences in these environmental parameters. Cnicin concentrations were also measured in a field experiment in response to varying levels of
soil nitrogen and water. No significant differences in cnicin concentrations were
observed among treatments in either young (rosette-stage) or mature aerial tissues. / Graduation date: 1999
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Inheritance of durable type disease resistance to leaf rust in wheat (Triticum aestivum L.em Thell)Das, Modan Kumar 28 March 1990 (has links)
Graduation date: 1990
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Resistance in alfalfa to the blue alfalfa aphid, Acyrthosiphon kondoi Shinji, in relation to environmental factorsLowry, David William January 1979 (has links)
No description available.
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