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Some phases of the biology of the wheat stem maggot (Meromyza americana Fitch) (Diptera, Chloropidae)Allen, Merle Walter January 2011 (has links)
Typescript, etc. / Digitized by Kansas State University Libraries
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The effect of the spring generation of Hessian fly (Phytophaga destructor (Say)) on the yield of standing culms of three varieties of wheatRedlinger, Leonard Maurice January 1947 (has links)
Typescript, etc.
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Sources of resistance to wheat straw-worm Harmolita grandis (Riley)Gates, Dell Edward. January 1952 (has links)
Call number: LD2668 .T4 1952 G3 / Master of Science
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The ability of wheat plants to recover from differing amounts of feeding injury caused by the greenbug (Toxoptera graminum Rond.)Matthew, David Leonard. January 1953 (has links)
Call number: LD2668 .T4 1953 M37 / Master of Science
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An investigation of the natural fluorescence of wheat kernal parts and farinaceous residues of certain insectsFlaherty, Michael. January 1951 (has links)
Call number: LD2668 .T4 1951 F56 / Master of Science
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Aural detection of larvae of wheatAdams, Robert Eugene. January 1953 (has links)
Call number: LD2668 .T4 1953 A3 / Master of Science
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The effect of fungicidal seed treatment on wheat plant emergence and bunt controlKing, Claude Lewis. January 1953 (has links)
Call number: LD2668 .T4 1953 K5 / Master of Science
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The extent of damage and reproduction of Tribolium confusum and T. Castaneum in wheat with different moisture contentsDaniels, Norris Eugene. January 1952 (has links)
Call number: LD2668 .T4 1952 D35 / Master of Science
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Further studies on competition among physiologic races of the leaf rust of wheatImel, Clarence. January 1950 (has links)
Call number: LD2668 .T4 1950 I4 / Master of Science
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Pathogenic variability and adaptation of Septoria tritici to different wheat cultivarsAhmed, Hafiz Uddin 01 November 1993 (has links)
Experiments were done to determine pathogenic variability
and pathogenic adaptation of Septoria tritici to different
wheat cultivars. Fifteen S. tritici isolates from
California, Oregon, and Texas were evaluated on seedlings of
two sets of geographically diverse wheat cultivars under
greenhouse conditions. Significant isolate effects, cultivar
effects, and isolate X cultivar interactions were found,
though the interaction terms were very small compared to the
main effects of isolate and cultivar. All except one isolate
were virulent to two sets of cultivars, and the virulence
patterns varied among the isolate-cultivar combinations.
Variability in virulence among the S. tritici isolates
within and between locations also was observed. The isolates
were usually more virulent to the cultivars of the same
geographic origin than cultivars of other locations, and
this demonstrates location-specific adaptation of S.
tritici.
Four populations of S. tritici, secured from four
winter wheat cultivars grown in a field experiment, were
evaluated on seedlings of the same wheat cultivars under
greenhouse conditions. Significant spore population
differences, cultivar differences, and spore population X
cultivar interactions were obtained. The interaction term
was fairly large compared to the main effect of spore
population, and it is likely that the significant
interaction was due to increased virulence of S. tritici to
its own cultivar of origin. The "own" spore population
(inoculation with spore population obtained from the same
cultivar) produced significantly larger area under disease
progress curve on the cultivar of origin than the "others"
(inoculation with spore populations obtained from other
cultivars), suggesting cultivar-specific adaptation of S.
tritici. Spore populations obtained from the two susceptible
cultivars indicated general adaptation to all of the test
cultivars, whereas, the spore population secured from the
most resistant cultivar showed specific adaptation to its
cultivar of origin. Consequences of pathogenic variability,
increased virulence, and adaptation of S. tritici to wheat
cultivars are discussed. / Graduation date: 1994
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