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Microculture of Betula growth and differentiation of callus cultures and protoplasts /McCulloch, Steven M. January 1980 (has links)
Thesis (M.S.)--University of Wisconsin--Madison. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Molecular variation in populations of Betula LHowland, Diane E. January 1992 (has links)
No description available.
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The products formed from the oxidation of the hemicellulose from the white birch, Betula populofolia, (M), with periodic acidEzrre, Lizabdro Lastra, 1911- January 1940 (has links)
No description available.
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Establishment of ectomycorrhizal fungi on roots of birch (Betula spp.)Gibson, Fiona January 1987 (has links)
No description available.
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The distribution and ecology of morphological types of Betula pendula Roth and Betula pubescens Ehrh., in Great BritainLilly, Susan J. January 1986 (has links)
The genus <i>Betula</i> occurs worldwide and is morphologically very variable; this variation is reflected in the two arborescent taxa which occur in Britain. In this work morphological data from birch were recorded from sites throughout Britain, with a view to defining morphological types derived from multivariate analyses such as cluster and discriminant analyses. Once these types had been defined, their distribution was investigated in relation to broad complexes of environmental factors. The multivariate analyses gave three morphological types which were equivalent to <i>B. pendula, B. pubescens</i> ssp. <i>pubescens</i> and <i>B. pubescens</i> ssp. <i>odorata</i> as described in published floras. Of the original characters used in the data base however, a total of 19 separated the three types, although there remained much overlap. A distinct separation, however, occurred between the type with pubescent twigs and hairs (<i>B. pubescens</i> ssp. <i>pubescens</i>) and the other glabrous types, but when these attributes were removed from the analysis, much morphological overlap was evident. Removal of these attributes was though necessary as they were 'masking' the ability of other characters to discriminate between the glabrous types. Each of the morphological types was associated with slightly different, but overlapping, complexes of environmental factors. <i>B. pendula</i> had an affinity with relatively cold winters, warm summers, dry areas towards the south and east, and was not found in the far north-west of Scotland. In contrast, <i>B. pubescens</i> ssp. <i>pubescens</i> was associated with relatively warm winters, cool summers, wet areas and did not show any relationship with areas of low rainfall or latitude. <i>B. pubescens</i> ssp. <i>pubescens</i> showed less environmental specificity, but was associated with wetter areas, relatively high altitude, towards the west, and also showed no association with low rainfall. The response to different photoperiodic treatments varied differently between taxa at different latitudes, but was similar at similar latitudes.
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Metal/ammonia reduction of furan derivatives and synthesis of cycloalkane-1, 3-diones / by Richard Ostcliffe WarrenWarren, Richard Frederick Ostcliffe January 1982 (has links)
Typescript (photocopy) / v, 169 leaves : ill. ; 31 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.) Dept. of Organic Chemistry, University of Adelaide, 1983
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Tree ring dynamics in mountain birch /Hoogesteger, Jan. January 2006 (has links) (PDF)
Thesis (licentiate)--Swedish University of Agricultural Sciences, 2006. / Thesis documentation sheet inserted. Appendix reprints three journal articles co-authored with others. Includes bibliographical references. Also issued electronically via World Wide Web in PDF format; online version lacks appendix.
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The isolation and analysis of the hemicelluloses from white birch woodWesterbeke, Donald, 1916- January 1938 (has links)
No description available.
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The relationship between chromosome size and deoxyribonucleic acid content in birch (Betula) species.Taper, L. Janette. January 1971 (has links)
No description available.
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Population Dynamics of the birch leaf miner, Fenusa Pusilla (Lepeletier), on the blue birch, Betula Caerulea Grandis Blanchard, in Quebec.Cheng, Hsien-Hua. January 1967 (has links)
No description available.
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