Under-trellis cover crops have become more prevalent in East Coast grape growing regions through either intentional planting or adoption of native vegetation, to minimize the potential for erosion and to help regulate grapevine size and vigor. These companion crops, however, have sometimes resulted in increased competition for soil nitrogen, leading to decreased vine nitrogen status and berry yeast assimilable nitrogen (YAN). The aim of this study was to determine the effects of different nitrogen fertilization methods applied at varying doses and different times, on vine and berry nitrogen parameters of cover cropped grapevines. The research described herein involved Sauvignon blanc, Merlot, and Petit Manseng grapevines (Vitis vinifera L.) subjected to different sets of nitrogen treatments, and was primarily conducted over two years. There were very few differences in pruning weights, canopy architecture, components of yield, and primary fruit chemistry amongst nitrogen treatments. Sauvignon blanc petiole nitrogen concentration, season-long chlorophyll content index (CCI) values, and berry YAN were most affected by the highest rate of soil nitrogen treatment (60 kg N/ha total split between two calcium nitrate applications at bloom and six weeks post bloom) and foliar fertilization (40 kg N/ha split over seven to nine urea applications); however, the foliar fertilization was most effective at increasing the concentration of certain individual amino acids. Petit Manseng berry YAN at harvest was increased in response to post-véraison foliar applications (10 kg N/ha split between two urea applications), corresponding to an increased concentration of nine amino acids. Merlot berry YAN, petiole nitrogen concentration, and season-long CCI values were most affected by a high rate of soil nitrogen treatment (60 kg N/ha total split between two calcium nitrate applications at bloom and six weeks post bloom) and establishing clover as the under-trellis cover crop. This study identified nitrogen treatments that improved berry nitrogen concentration and content in cover cropped sites. / Master of Science

Wang, Jing. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 138-142). / Abstracts in English and Chinese. / Abstract / Acknowledgements / Chapter Chapter One: --- Introduction --- p.7 / Chapter A. --- Background leading to the research question --- p.7 / Chapter I. --- The socialist legacy: the institutional failure of China ´ةs labor regime --- p.8 / Chapter II. --- Society in action: the emergence of migrant worker NGOs --- p.10 / Chapter B. --- Research Question --- p.16 / Chapter C. --- Significance of the research --- p.18 / Chapter D. --- Research Structure --- p.21 / Chapter I. --- Relationship with official trade unions --- p.22 / Chapter II. --- Relationship with enterprises (suppliers and MNCs) --- p.22 / Chapter III. --- Relationship with foreign NGOs --- p.24 / Chapter F. --- The Organization of the Thesis --- p.24 / Chapter Chapter Two: --- Literature Review --- p.26 / Chapter A. --- State-society relations: a Civil Society Perspective --- p.27 / Chapter B. --- Industrial relations as Embedded in the State-society Relations --- p.35 / Chapter C. --- Major Inadequacies in Literatures --- p.40 / Chapter Chapter Three: --- Methodology --- p.42 / Chapter A. --- Research Question and Research Design --- p.42 / Chapter B. --- Justifications for Case Study as an Appropriate Method for this Research --- p.44 / Chapter C. --- Selection of the Case --- p.48 / Chapter D. --- Conducting Case Studies --- p.49 / Chapter E. --- Problems Associated with the Case Study --- p.51 / Chapter F. --- Summary --- p.51 / Chapter Chapter Four: --- Impoverishment of Migrant Labor: Global Capitalism and China's Urban-rural Structural Divide --- p.51 / Chapter A. --- Global Capitalism: the Political Economy of Export-orientated Industry --- p.55 / Chapter B. --- Labor Regime Facilitative to Exploitation --- p.59 / Chapter C. --- The Socio-political Underpinnings of the Labor Regime: Residence Registration System and Two-tier Labor Market --- p.63 / Chapter D. --- Corporate Social Responsibility --- p.66 / Chapter I. --- The comeback of CSR --- p.66 / Chapter II. --- CSR labor regulatory regime --- p.69 / Chapter III. --- The story of ICO started from here --- p.71 / Chapter E. --- Summary --- p.72 / Chapter Chapter Five: --- The Emergence of ICO in the Context of CSR --- p.74 / Chapter A. --- Historical Review of Government Control on Social Organizations --- p.74 / Chapter B. --- The Strategy of ICO to Register with the Government --- p.78 / Chapter C. --- The ICO's Strategy into the Industrial Relations --- p.82 / Chapter D. --- Government --- p.87 / Chapter E. --- Western Civil Society and Foreign NGOs --- p.91 / Chapter F. --- Summary --- p.95 / Chapter Chapter Six: --- The Expansion of ICO --- p.97 / Chapter A. --- Strategy in adaptation --- p.97 / Chapter I. --- Research --- p.97 / Chapter II. --- "CSR Consulting, Training and Auditing" --- p.98 / Chapter III. --- Labor empowerment --- p.106 / Chapter IV. --- Networking --- p.108 / Chapter B. --- Management and Capacity --- p.109 / Chapter I. --- Governance structure --- p.110 / Chapter II. --- Financial management --- p.113 / Chapter III. --- Human resources --- p.115 / Chapter C. --- Enterprises --- p.116 / Chapter D. --- Government --- p.118 / Chapter E. --- Trade Unions --- p.121 / Chapter F. --- Summary --- p.124 / Chapter Chapter Seven: --- Conclusion --- p.125 / Chapter A. --- State and Civil Society: A Game of Push and Pull? --- p.126 / Chapter B. --- A Western-Bred Civil Society? --- p.127 / Chapter C. --- The Social Entrepreneur --- p.130 / Chapter D. --- Refining the Theoretical Framework of Transformation in Chinese Labor Regime and State-Society Relations --- p.134 / References --- p.138

本論文研究華人家族企業與華人家族之間的互動關係，並且以南洋兄弟煙草公司和簡氏家族作為本論文的個案研究。在論文中，將討論家族如何與為何影響公司的擁有權、控制權、公司經營和未來發展。同時，也將討論公司如何且為何影響一個家族的成立與擴張，與其他家庭的關係，以及如何從家族變成宗族。 / 在結論中，我將指出簡氏家族是一個成員不多的小家族，因此必須依賴親戚和廣東同鄉來經營。此外，雖然他們可藉著與簡氏家族的關係而進入南洋，但是他們在南洋的升遷與發展，則依賴他們的表現和與簡家的關係變化。因此在華人家族企業中，家族成員、親戚與同鄉可通過他們與家族的關係而進入企業工作，但是他們的未來取決於他們對公司的貢獻與表現，以及他們與家族之間的關係有何變化。 / 大部分的簡家成員是通過他們在海外的工作經驗而接觸並學習現代化技術，而非通過教育。此外，雖然簡氏家族在引入現代化技術以改善南洋的生產和管理，並且看似大膽且現代化，但實際上當他們在公司的權利可能因而受影響時，他們則表現得保守與傳統。因此，華人家族企業的現代化取決與華人家族企業的擁有權和控制權是否遭受威脅。如果擁有權和控制權不受影響，現代化的改革則得以實施，不然將仍然保留傳統的模式。現代化並非單純的零和模式，因此許多華人家族企業是現代與傳統的混合體。 / 由於與政治界缺乏有效的方式與溝通，南洋與簡氏家族都不可避免地受到政府的影響，無力拒絶政府的要求並為他們自己爭取更好的機會。如同民國時期其他商人與企業，當中國出現大一統政府時，他們就無法取得比較好的機會與待遇。 / 本研究也為華人家族企業指出了四個新理論。第一，當華人家族企業為股份公司時，其擁有權將影響其控制權。第二，家族成員、親戚與鄉親可進入公司，但他們的地位取決於其貢獻與表現，以及他們與家族的關係。第三，華人家族企業的現代化，取決於家族是否可保有對公司的擁有權和控制權。第四 ，企業家精神有時對公司不是好處，而是壞處。 / The thesis is a research based on a case study of the inter-relation of a Chinese family firm and a Chinese family: the Nanyang Brothers Tobacco Company and the Jian family. The article will be discussing on the rationale and practices that influence a firm on its ownership, authority, operations and developments; In addition, the ground of these influences towards its family growth, expansion, connection with other families, eventually leading to a lineage evolution. / Throughout the study, I have indicated that the Jian family is a small family. Hence, most of its members have to rely on their paternal and maternal relatives, or the Cantonese fellows to operate Nanyang. In the beginning stage, this group of family members could obtain a position in Nanyang through relationship with the Jian family. However, their career paths in Nanyang are subject to their performances and the changes of relationship with the Jian family at some point in the future. / In spite of ample working experience gained in overseas, most members from the Jian family did not learn about modernization through academic choice. Notwithstanding the evidence that the Jian family has introduced the modern skills and technology into the process of Nanyang’s manufacturing and management, it is unlikely that the authority could forgo the conventional methodology in order to adapt to the advanced formulas. Over and above that, this group of family members regards this phenomenon as a disadvantage towards their position in Nanyang. The threat level of present authority and ownership determines the success rate of the evolution within a Chinese family firm. Modernization could be realized if only the present authority were not affected. However, the evolution within a firm is not a zero-sum game. And therefore, many of the Chinese family firms adapt to the integration of modern and conventional management approach. / The lack of communication efficiency between the local government and Jian family, as well as Nanyang is the fundamental of its political position. Due to its political positioning, Nanyang unavoidably faces difficulties in declining requests from the government and to strive for greater opportunities. Like any other merchants during the Republican Era of China, they could not gain a better treatment under these circumstances. / The research indicated four principles for these Chinese family firms. Firstly, when a Chinese family firm is also a stock corporate at the same time, its ownership of the company’s share will directly impact on its individual authority. Secondly, family members, relatives, and fellows could achieve an easy entry into a Chinese family firm based on its relationship. However, the career paths in the firm are subject to their individual performances and the relationship with the family. Thirdly, the threat level of present authority and ownership determines the success rate of the evolution within a Chinese family firm. Modernization could be realized if only the present authority were not affected. Otherwise, modernization will be denied at the initial stage. Lastly, entrepreneurship is a double-edged sword. It allows a firm to unleash its greatness; or, a significant drawback. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Chong, Henry Ren Jie. / Thesis (Ph.D.) Chinese University of Hong Kong, 2015. / Includes bibliographical references (leaves 277-292). / Abstracts also in Chinese.

Doctor of Philosophy / Polyphenol oxidase (PPO) catalyses undesirable darkening in wheat products such as Asian noodles. Genetic variation for PPO activity is characterized in bread wheat. Australian wheat breeding programmes recognize that reduced PPO activity is an important quality target. Despite this interest from breeders, no varieties possessing extremely low and null PPO activity exist. The development of null PPO wheat varieties is dependant on an understanding of the genetic control of the null phenotype. Knowledge of these factors will accelerate efforts to develop them. The inheritance of PPO activity was investigated in two populations that were derived from hybrids between a null PPO genotype and Australian wheat varieties Lang and QAlBis. Observed genetic ratios were consistent with two and three gene control, respectively in these populations. QTL mapping was performed in the QALBis x VAW08-A17 population. The Diversity Array Technology (DArT) approach was employed to genotype the QALBis x VAW08-A17 population. Three highly significant QTLs that control PPO activity were identified on chromosomes 2AL, 2BS and 2DL. Close associations between PPO activity and DArT marker loci wPt-7024, wPt-0094 and wPt-2544 were observed, respectively. Collectively, these loci explained 74% of the observed variation in PPO activity across seasons. Significant QTLs on chromosomes 1B and 3B were also identified that together explained an additional 17% of variation in PPO activity. The relationship between PPO activity and yellow alkaline noodles (YAN) colour stability parameters was investigated in a DM5637*B8 x H45 doubled haploid population. PPO activity and changes in YAN brightness (ΔL* 0-24h) and yellowness (Δb* 0-24h) in both seasons were analysed. Quantitative trait analyses of PPO activity, flour yellowness (b*) and YAN colour stability was also conducted in this population. QTL mapping of variation in PPO activity in the DM5637*B8 x H45 DH population identified a highly significant QTL on chromosome 2AL, which explained 52% of the observed variation across seasons. Regression analysis identified that wPt-7024 was highly significantly associated with PPO activity in this population. A highly significant association between this marker and PPO was also identified in the QALBis x VAW08-A17 population. Collectively, the three identified QTLs (on chromosomes 2AL, 7A and 7B) explained 71% of variation in PPO activity across seasons. A highly significant (P<0.001) QTL on chromosome 2B along with significant (P<0.01) QTLs on the chromosomes 1A, 3B, 4B and 5B were found to control flour yellowness. The QTLs on 2B, 4B and 5B were detected in both seasons analysed and accounted for 90% of variation in flour b* across seasons. The study on YAN colour stability located two highly significant (P<0.001) QTLs and two significant (P<0.01) QTLs that controlled the change in brightness of yellow alkaline noodle. The 2A QTL accounted for 64% of observed variation across seasons. It was in the same location as the PPO QTL and shared a common closest marker wPt-7024. Only one significant QTL for YAN a* (0-24h) was identified. It accounted for 12% of variation across seasons and was only detected in one season. One highly significant (P<0.001) QTL and two significant (P<0.01) QTLs were identified that controlled the change in yellowness of yellow alkaline noodle. The 2A QTL accounted for 68% of observed variation across seasons. The location of this QTL corresponded with that of 2A QTLs for PPO activity and L* of YAN in this study. Furthermore, wPt-7024 was also identified as the marker with the most significant association with L*. The identification of a correlation between the characters and a common location of a highly significant QTL for each of these characters indicates that it is likely that PPO activity is directly responsible for a large proportion of the changes in brightness and yellowness of YAN. QTLs for L* and b* of YAN were detected in a common location on chromosome 1A. However, no corresponding QTL was identified that controls PPO activity, highlighting the complexity of the relationship between these traits. Resistance to three rust pathogens (Puccinia graminis, Puccinia striiformis, and Puccinia triticina) was also investigated in the DM5637*B8 x H45 DH population because they are major yield limiting diseases in wheat. Disease response data at the seedling stage were converted to genotypic scores for rust genes Sr24/Lr24, Sr36, Lr13 and Yr7 to construct a genetic linkage map. No recombination was observed between rust resistance genes Sr36, Lr13 and Yr7 in this DH population. Therefore, these genes mapped in the same position on chromosome 2B. The Lr24/Sr24 locus was incorporated into the chromosome 3D map. Interval mapping analysis identified QTLs on chromosomes 2B, 3B, 4B and 5B that control adult plant resistance (APR) to stripe rust. Two QTLs on chromosomes 2B and 3D were identified that controlled APR to leaf rust in this DH population.

Les prédictions théoriques d'un nouvel état de la matière, le plasma de quarks et de gluons, ont conduit le CERN à mener une vaste campagne de recherche expérimentale pour sa mise en évidence. Des collisions d'ions lourds peuvent conduire à cette transition de phase. Parmi les signatures proposées, l'expérience NA50 étudie la production du J/psi relativement au DRELL-YAN. Le J/psi est une résonance ccbar qui subit l'interaction forte et les modifications des propriétés du milieu nucléaire. Le DRELL-YAN, processus purement électromagnétique, joue le rôle de référence. L'expérience NA38 a mesurée en évidence une suppression normale de la production du J/psi en fonction de la longueur moyenne de matière traversée. Dans son prolongement, l'expérience NA50 a mis en évidence en 1995, 1996 et 1998 une suppression "anormale" du J/psi dans les collisions Pb-Pb à 158 GeV/nucléon. Cette analyse est effectuée en fonction de la centralité de la collision mesurée par le calorimètre électromagnétique. Les informations de ce détecteur permettent de calculer l'énergie transverse neutre reliée à la longueur moyenne de matière traversée.<br> En 2000, des conditions de prises de données optimales en collisions Pb-Pb ont permis d'analyser les données pour des collisions très périphériques. Les sources d'erreurs systématiques ont été étudiées, ce qui a permis d'obtenir une bonne cohérence entre les différentes analyses du système Pb-Pb. Les collisions périphériques sont compatibles avec la loi d'absorption normale.<br> En conclusion, nous avons mis en évidence une suppression de ~31% dans la production de J/psi relativement à l'absorption normale. Ce changement de régime a lieu à ~30 GeV en énergie transverse (E_T) et est dû à une modification des propriétés nucléaires du milieu réactionnel. Plusieurs scénarios possibles sont envisagés pour expliquer ce phénomène.

Dans cette thèse, nous étudions la production des dimuons dans une région de masse entre les résonances Phi et J/Psi (Région des Masses Intermédiaires, IMR) dans les collisions proton-noyau et noyau-noyau de haute énergie.<br /><br />L'expérience NA50, installée auprès de l'accélérateur SPS du CERN, détecte les paires de muons émises dans ces interactions au moyen d'un spectromètre spécifique. La mesure de la centralité des collisions repose sur trois détecteurs indépendants : un calorimètre électromagnétique, un détecteur de multiplicité et un calorimètre à zéro degré.<br /><br />Les résultats des analyses proton-noyau fournissent une valeur de référence pour l'étude des interactions noyau-noyau. Les distributions expérimentales, corrigées de l'acceptance et de la résolution par une méthode quadri-dimensionnelle, des dimuons IMR sont correctement reproduites par la superposition des processus conventionnels DY et DDbar (désintégration des mésons charmés). L'extrapolation linéaire avec le nombre de masse des noyaux des résultats p-A aux collisions S-U et Pb-Pb, sous-estime systématiquement les spectres mesurés dans la région des masses intermédiaires.<br /><br />Cet excès de dimuons IMR augmente avec la centralité des collisions. Plusieurs modèles théoriques sont présentés et comparés aux données noyau-noyau. Nous montrons qu'un modèle basé sur la diffusion des mésons D et Dbar dans l'état final ne reproduit pas les distributions expérimentales. Finalement, cette étude permet de proposer deux explications possibles de l'excès observé. Les spectres noyau-noyau peuvent être reproduits soit par une augmentation de la production de charme soit par la présence de dimuons thermiques émis par un milieu dense et chaud.

From December 1983 to January 1984, 228 bamboo strips were unearthed in M247 at Jiangling, Hubei. These strips contained a collection of criminal cases called Zou Yan Shu, as well as 526 strips containing Laws of the 2nd Year. This discovery effectively patched a gap in judicature during the transition from the Qin to the Han. Beginning in 1985, a research group, Li Xueqin, and Peng Hao, began publishing the content of these strips in Wenwu. Soon scholars all over the world began researching the strips. In 2008, the Bamboo and Silk Manuscript Center at Wuhan University used infrared imaging (as well as referencing Cai Wanjin¡¦s revisions of the text and the research of other scholars) to make sense of a very muddled text. This also brought about many breakthroughs in research on the Zou Yan Shu. Now scholars understand much more concerning judicature during the Qin-Han period and how it differed from that of pre-Qin times. Despite this, few scholars have attempted a comprehensive analysis of the 22 cases found in this work. There is much research to be done on legal terminology in the text, the judiciary writing process in Zou Yan Shu, the reasons for compiling these 22 cases, knowledge of judiciary principles during Qin-Han gained from these cases, and several keys to unjust, falsified, and mistaken cases. This dissertation attempts to utilized prior understanding of the scholarly community to systematically and comprehensively analyzing all 22 cases and to explicate the meaning of the title Zou Yan Shu, judiciary terminology, the judiciary process, adjudicatory results, and reasons for the unjust, falsified, and mistaken cases. It was discovered that the purpose for this compilation was to educate law-enforcement officials and portrays the message that from receiving the initial report to apprehending and trying the criminal to gathering evidence to issuing the final judgment, if the principle ¡§all is decided by the law¡¨ is not strictly adhered to then mistakes are easily made. In addition, the way documents are written in Zhou Yan Shu is closely related to the judiciary process from the county-level all the way to the Commandant of Justice, revealing how this process worked at the various levels.

This thesis studies fictional narratives of the countryside by writers of rural origin in English and Chinese literature in relation to the "countryside ideal." The term, borrowed from Michael Bunce, describes an ancient as well as modern theme in literature, which sees the countryside as a desirable "home." The conventional construction of the countryside by urban writers sustains this ideal with simplistic and static images. My thesis extends the discussion beyond the idyllic countryside in the mainstream of Anglo-American culture and the genteel culture in China to concentrate on Thomas Hardy (1840-1928), Shen Congwen (1902-1988), and Mo Yan (b. 1956), who all have personal relations with the countryside and who enrich its image with accounts of actual life, reconnecting it to authentic home place. I discuss fictional narratives of the rural homelands of the three writers not as unmediated transcriptions but as cultural constructs, which are shaped by different literary traditions and responsive to specific historical contexts. My approach is mainly text-based, but supplemented by references to each writer's cultural and historical contexts. The Introduction situates these writers and their rural homelands in relation to the specific interest in the countryside in each writer's cultural milieu. Chapter One reads Hardy's reconstruction of the countryside in light of the struggle for existence in a Darwinian natural world. Hardy's sombre-looking rural landscapes highlight the complex difficulties of rural life and the moral and intellectual qualities required to survive in such a world. Chapter Two studies Shen Congwen's justification of rural culture in the midst of nationalist aspirations for globalization. His multi-layered fictionalization of the rural homeland centres on the image of water, a root symbol of Chinese culture, merging traditional Chinese culture with modernist vitalism. Chapter three examines Mo Yan's reconstruction of the rural homeland after the severe disruption of Chinese culture during the Mao era. Mo Yan's magic realist reconstruction testifies to the repression of the genius loci of his rural homeland by politics and expresses a desire to be reconnected with the original homeland through sensual bonds rather than detached observations. These writers' narratives redefine the countryside in relation to "home" as a centre for meaningful activities. The fact that they reappropriate and situate rural life and work in specific cultural traditions and diverse forms of modernity is manifested in their unique and irreplaceable literary constructions. I will offset Hardy's writing against that of the two Chinese writers, in order to clarify their rich and diverse cultural implications. Whereas Hardy subjects his fictional rural landscape to a scientific approach, Shen Congwen reconfirms traditional Chinese culture, linking it with the ideals of the May Fourth movement for renewal and revitalization. Mo Yan, for his part, combines the rural perspective and faith in the land with a modernist use of magic realism. Fictionalizations of the rural homeland thus reveal complex interactions with modernity.

Dynasties of Demons: Cannibalism from Lu Xun to Yu Hua focuses on the issue of representations of the body in modern Chinese fiction. My interest concerns the relationship, or correspondence between "textual" bodies and the physical "realities" they are meant to represent, particularly where those representations involve the body as a discursive site for the intersection of state ideology and the individual. The relationship between the body and the state has been a question of profound significance for modern Chinese literati dating back to the late Qing, but it was Lu Xun who, with the publication of his short story "Kuangren riji" (Diary of a Madman), in 1918, initiated the literaty discourse on China's "apparent penchant for cannibalizing its own people. In the first chapter of my dissertation I discuss L u Xun's fiction by exploring two distinct, though not mutually exclusive issues: (1) his diagnosis of China's debilitating "spiritual illness," which he characterized as being cannibalistic; (2) his highly inventive, counter-intuitive narrative strategy for critiquing traditional Chinese culture without contributing to or stimulating his reader's prurient interests in violent spectacle. To my knowledge I am the first critic of modern Chinese literature to write about Lu Xun's erasure of the spectacle body. In Chapters II, III and IV, I discuss the writers Han Shaogong, Mo Yan, and Yu Hua, respectively, to illustrate that sixty years after Lu Xun's madman first "wrote" the prophetic words, chi ren A (eat people), a number of post-Mao writers took up their pens to announce that the human feast did not end with Confucianism; on the contrary, with the advent of Maoism the feasting began in earnest. Each of these post-Mao writers approaches the issue of China's "spiritual dysfunction" from quite different perspectives, which I have characterized in the following way: Han Shaogong (Atavism); Mo Yan (Ambivalent-Nostalgia); and Yu Hua (Deconstruction). As becomes evident through my analysis of selected texts, despite their very significant differences (personal, geographic, stylistic) all three writers come to oddly similar conclusions that are, in and of themselves, not dissimilar to the conclusion arrived at by Lu Xun's madman.

Doctor of Philosophy / Polyphenol oxidase (PPO) catalyses undesirable darkening in wheat products such as Asian noodles. Genetic variation for PPO activity is characterized in bread wheat. Australian wheat breeding programmes recognize that reduced PPO activity is an important quality target. Despite this interest from breeders, no varieties possessing extremely low and null PPO activity exist. The development of null PPO wheat varieties is dependant on an understanding of the genetic control of the null phenotype. Knowledge of these factors will accelerate efforts to develop them. The inheritance of PPO activity was investigated in two populations that were derived from hybrids between a null PPO genotype and Australian wheat varieties Lang and QAlBis. Observed genetic ratios were consistent with two and three gene control, respectively in these populations. QTL mapping was performed in the QALBis x VAW08-A17 population. The Diversity Array Technology (DArT) approach was employed to genotype the QALBis x VAW08-A17 population. Three highly significant QTLs that control PPO activity were identified on chromosomes 2AL, 2BS and 2DL. Close associations between PPO activity and DArT marker loci wPt-7024, wPt-0094 and wPt-2544 were observed, respectively. Collectively, these loci explained 74% of the observed variation in PPO activity across seasons. Significant QTLs on chromosomes 1B and 3B were also identified that together explained an additional 17% of variation in PPO activity. The relationship between PPO activity and yellow alkaline noodles (YAN) colour stability parameters was investigated in a DM5637*B8 x H45 doubled haploid population. PPO activity and changes in YAN brightness (ΔL* 0-24h) and yellowness (Δb* 0-24h) in both seasons were analysed. Quantitative trait analyses of PPO activity, flour yellowness (b*) and YAN colour stability was also conducted in this population. QTL mapping of variation in PPO activity in the DM5637*B8 x H45 DH population identified a highly significant QTL on chromosome 2AL, which explained 52% of the observed variation across seasons. Regression analysis identified that wPt-7024 was highly significantly associated with PPO activity in this population. A highly significant association between this marker and PPO was also identified in the QALBis x VAW08-A17 population. Collectively, the three identified QTLs (on chromosomes 2AL, 7A and 7B) explained 71% of variation in PPO activity across seasons. A highly significant (P<0.001) QTL on chromosome 2B along with significant (P<0.01) QTLs on the chromosomes 1A, 3B, 4B and 5B were found to control flour yellowness. The QTLs on 2B, 4B and 5B were detected in both seasons analysed and accounted for 90% of variation in flour b* across seasons. The study on YAN colour stability located two highly significant (P<0.001) QTLs and two significant (P<0.01) QTLs that controlled the change in brightness of yellow alkaline noodle. The 2A QTL accounted for 64% of observed variation across seasons. It was in the same location as the PPO QTL and shared a common closest marker wPt-7024. Only one significant QTL for YAN a* (0-24h) was identified. It accounted for 12% of variation across seasons and was only detected in one season. One highly significant (P<0.001) QTL and two significant (P<0.01) QTLs were identified that controlled the change in yellowness of yellow alkaline noodle. The 2A QTL accounted for 68% of observed variation across seasons. The location of this QTL corresponded with that of 2A QTLs for PPO activity and L* of YAN in this study. Furthermore, wPt-7024 was also identified as the marker with the most significant association with L*. The identification of a correlation between the characters and a common location of a highly significant QTL for each of these characters indicates that it is likely that PPO activity is directly responsible for a large proportion of the changes in brightness and yellowness of YAN. QTLs for L* and b* of YAN were detected in a common location on chromosome 1A. However, no corresponding QTL was identified that controls PPO activity, highlighting the complexity of the relationship between these traits. Resistance to three rust pathogens (Puccinia graminis, Puccinia striiformis, and Puccinia triticina) was also investigated in the DM5637*B8 x H45 DH population because they are major yield limiting diseases in wheat. Disease response data at the seedling stage were converted to genotypic scores for rust genes Sr24/Lr24, Sr36, Lr13 and Yr7 to construct a genetic linkage map. No recombination was observed between rust resistance genes Sr36, Lr13 and Yr7 in this DH population. Therefore, these genes mapped in the same position on chromosome 2B. The Lr24/Sr24 locus was incorporated into the chromosome 3D map. Interval mapping analysis identified QTLs on chromosomes 2B, 3B, 4B and 5B that control adult plant resistance (APR) to stripe rust. Two QTLs on chromosomes 2B and 3D were identified that controlled APR to leaf rust in this DH population.