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Wong Sui Ming. / Thesis (M.Ph.)--Chinese University of Hongkong, 1979. / Bibliography: leaves 131-138. / Chapter CHAPTER I --- Introduction: / Chapter I --- Aim of study --- p.1 / Chapter II --- Plan of study --- p.1 / Chapter CHAPTER II --- Phytochemical Screening / Chapter I --- Literature review --- p.5 / Chapter II --- Experimental --- p.14 / Chapter III --- Results / Chapter (A) --- Screening for saponin and sterol --- p.15 / Chapter (B) --- Screening for tannin and polyphenol / Chapter (C) --- Screening for anthraquinone --- p.16 / Chapter (D) --- Screening for flavonoid and leucoanthocyanin / Chapter (E) --- Screening for cardenolide and bufadienolide / Chapter (F) --- Screening for cyanogenic glycoside / Chapter (G) --- Screening for alkaloid --- p.18 / Chapter IV --- Conclusion --- p.19 / Chapter CHAPTER III --- Introduction to Anthraquinone & Triterpenoid / Chapter I --- Biogenesis --- p.20 / Chapter II --- Anthraquinone / Chapter (A) --- Introduction --- p.23 / Chapter (B) --- Biogenesis --- p.25 / Chapter (C) --- Properties --- p.28 / Chapter (D) --- Spectrometry --- p.33 / Chapter (E) --- Chromatography --- p.39 / Chapter III --- Triterpenoid --- p.42 / Chapter (A) --- Pentacyclic triterpenoid --- p.44 / Chapter (B) --- General properties --- p.47 / Chapter (C) --- IR Spectra --- p.48 / Chapter (D) --- PMR Spectra --- p.50 / Chapter (E) --- Mass Spectra --- p.56 / Chapter CHAPTER IV --- Structural Elucidation / Chapter I --- Separation Scheme --- p.63 / Chapter II --- Results and Discussions --- p.66 / Chapter (A) --- "Hydroxyanthrac,_uinone" / Chapter (i) --- Chrysophanol (Hl) --- p.69 / Chapter (ii) --- Physicon (H2) --- p.82 / Chapter (B) --- Triterpenoid / Chapter (i) --- Sophoradiol (T1) --- p.90 / Chapter (ii) --- Soyasapogenol-(B) (T0) --- p.106 / Chapter (C) --- Analysis of sugars --- p.119 / Chapter III --- Experimental --- p.120 / REFERENCES --- p.131

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There is a desire to source novel legume species to combat the threat of dryland salinity to agriculture and the environment. There are already many legume weeds in temperate Australia and the potential negative impact of new species has created a justifiable impasse. Weed risk assessment presents a potential solution, but deficiencies in the current Australian system have hampered progress thus far. A greater emphasis on the impact of the weed species may be a means of solving this conflict. Therefore, this project attempted to predict the level of impact that a legume species would have upon temperate natural ecosystems. The weed impact of exotic legume species in natural ecosystems was determined by distributing a questionnaire to experts. Respondents reported that woody perennial legumes were more important than herbaceous legumes. Field measurements demonstrated that the abundance of legumes was correlated with their perceived impact in natural ecosystems. Thus, two test species lists were compiled, one of woody species and the other herbs. The woody species comprised three impact levels: major, moderate and no impact. The herbaceous species also comprised three lower impact levels: consequential, inconsequential and no impact. The identification of legume species with differing levels of impact subsequently allowed them to be compared with respect to a number of biological traits, with the aim of distinguishing impact groups based on these traits. Seedling growth was examined in the glasshouse under both high and low soil moisture. With high soil moisture, major and moderate impact legumes were distinguished by having a higher specific root length than no impact legumes. Consequential impact herbaceous legumes had lower specific leaf area than the lower impact groups. Moisture stress did not alter the comparisons between impact groups. Five reproductive traits were explored through a mixture of experimental, field sampling and literature research. Major and moderate impact legumes had a shorter juvenile period, higher seed dormancy, a smaller seed mass and higher seed production than no impact legumes. Major and moderate impact legumes could be differentiated by their seed mass and seed production. Consequential and inconsequential impact herbaceous species had higher seed production and seed dormancy than no impact species. To allow for important interactions with the environment, the ability of the test legumes to establish in temperate natural ecosystems with and without physical disturbance was studied. This provided some test of the conclusions reached from individual trait studies. The highest impact legumes were the most successful at establishing in the natural ecosystems studied. Disturbance had a positive effect on establishment, except for the major impact group where disturbance was not important. This study was able to highlight that for a legume to successfully naturalise in temperate Australia it must possess certain biological traits. Less success was achieved in distinguishing naturalised legumes of differing impact. However, growth form is important and seed mass appears a significant trait in regard to woody species. Both are easily measured traits and could be incorporated in weed risk assessment of legumes in the future. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1284153 / Thesis (Ph.D.) -- University of Adelaide, School of Agriculture, Food and Wine 2007

Thesis (Ph. D.)--University of Florida, 1982. / Typescript. Vita. Description based on print version record. Includes bibliographical references (leaves 96-104).

Thesis (Ph. D.)--University of Pennsylvania, 1913. / Added t.p.: Bulletin no. 108, April 1915, Delaware College Agricultural Experiment Station ... Newark, Delaware. Bibliography: p. 40-41.

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The present study is the first detailed worldwide revision of the whole genus Dialium. The genus has previously been revised and subdivided into infrageneric taxa (with enumeration of species of Africa and the Neotropics only) but their delimitations have been based solely on gross morphology. Therefore, in order to define the taxa, the present study reviewed the gross morphological characters and augmented them with data from anatomy, palynology, cytology and phytochernistry. This made possible a new classification which better reflects the relationships of the infrageneric taxa. The various characters are reviewed, covering gross morphology, indumentum and other epidermal characters of the leaflets, anatomy of the pulvinus, testa and wood, palynology, cytology and phytochernistry. The important taxonomic characters in Dialium are pointed out and used to define the genus and infrageneric taxa, as well as in recognising species and varieties. Some taxonomic characters are discussed in relation to geographical distribution in order to explain the present-day occurrence of infrageneric taxa east of, and one species west of, continental Africa. Evolutionary trends are explained based on these taxonomic characters. The genera in the subtribe Dialiinae are found to be closely inter-related. However, the majority of them are more closely related to each other than they are to Dialium itself. The genera Baudouinia, Eligmocarpus and Mendoravia are taxonomically rather remote from the rest of the Dialiinae and their position needs further evaluation. The subgenus Uittienia is found not to belong to Dialium and has to be reinstated as a monotypic genus but within the same subtribe. The thesis concludes with a formal taxonomic treatment of Dialium. The arrangement of the infrageneric taxa is such that it reflects their supposed taxonomic relationships. There are no new species described. Previously reduced species and infraspecific taxa are reviewed ana further reductions are made. As a result, only 27 species (4 with varieties) are now recognised out of the previously estimated 40 species.

No description available.