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Cooling Capacity Assessment of Semi-closed GreenhousesLee, Wee Fong 22 June 2010 (has links)
No description available.
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Measurement of 222Rn Exhalation Rates and 210Pb Deposition Rates in a Tropical EnvironmentLawrence, Cameron Eoin January 2006 (has links)
This thesis provides the measurements of 222Rn exhalation rates, 210Pb deposition rates and excess 210Pb inventories for locations in and around Ranger Uranium Mine and Jabiru located within Kakadu National Park, Australia. Radon-222 is part of the natural 238U series decay chain and the only gas to be found in the series under normal conditions. Part of the natural redistribution of 222Rn in the environment is a portion exhales from the ground and disperses into the atmosphere. Here it decays via a series of short-lived progeny, that attach themselves to aerosol particles, to the long lived isotope 210Pb (T1/2 = 22.3 y). Attached and unattached 210Pb is removed from the atmosphere through wet and dry deposition and deposited on the surface of the earth, the fraction deposited on soils is gradually transported through the soil and can create a depth profile of 210Pb. Here it decays to the stable isotope 206Pb completing the 238U series. Measurements of 222Rn exhalation rates and 210Pb deposition rates were performed over complete seasonal cycles, August 2002 - July 2003 and May 2003 - May 2004 respectively. The area is categorised as wet and dry tropics and it experiences two distinct seasonal patterns, a dry season (May-October) with little or no precipitation events and a wet season (December-March) with almost daily precipitation and monsoonal troughs. November and April are regarded as transitional months. As the natural processes of 222Rn exhalation and 210Pb deposition are heavily influenced by soil moisture and precipitation respectively, seasonal variations in the exhalation and deposition rates were expected. It was observed that 222Rn exhalation rates decreased throughout the wet season when the increase in soil moisture retarded exhalation. Lead-210 deposition peaked throughout the wet season as precipitation is the major scavenging process of this isotope from the atmosphere. Radon-222 is influenced by other parameters such as 226Ra activity concentration and distribution, soil porosity and grain size. With the removal of the influence of soil moisture during the dry season it was possible to examine the effect of these other variables in a more comprehensive manner. This resulted in categorisation of geomorphic landscapes from which the 222Rn exhalation rate to 226Ra activity concentration ratios were similar during the dry season. These results can be extended to estimate dry season 222Rn exhalation rates from tropical locations from a measurement of 226Ra activity concentration. Through modelling the 210Pb budget on local and regional scales it was observed that there is a net loss of 210Pb from the region, the majority of which occurs during the dry season. This has been attributed to the fact that 210Pb attached to aerosols is transported great distance with the prevailing trade winds created by a Hadley Circulation cell predominant during the dry season (winter) months. By including the influence of factors such as water inundation and natural 210Pb redistribution in the soil wet season budgeting of 210Pb on local and regional scales gave very good results.
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Investigating the production of secondary metabolites effective in lowering blood glucose levels in Euclea Undulata Thunb. Var Myrtina (Ebenaceae)Botha, Lynette Elizabeth 03 1900 (has links)
Euclea undulata Thunb. var myrtina is a widely distributed shrub in South Africa. The roots are used by traditional healers for the treatment of diabetes. Research indicates that roots contain epicatechin, lupeol as well α-amyrin-3O-β-(5-hydroxy) ferulic acid. It was found that α-amyrin-3O-β-(5-hydroxy) ferulic acid inhibits α-glucosidase while epicatechin lowers glucose levels in the blood. Existing literature also indicates the presence of the naphthoquinone 7-methyl-juglone in the roots, although it was not detected in all cases. Due to its cytotoxic nature, 7-methyl-juglone poses a potential threat when E. undulata is used as medicinal treatment.
In order to assist the effective and safe use of this plant as a treatment for diabetes, this project aims to determine whether the presence of these metabolites is seasonal. It further aims to contribute to more sustainable harvesting methods by investigating stems and leaves in addition to the roots for the presence of these metabolites. / Environmental Sciences / M. Sc. (Environmental Science)
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Estudo meta-analítico do desempenho de bovinos de corte em pastagens tropicais / Meta-analytical study of the performance of beef cattle on tropical pasturesTambara, Antônio Augusto Cortiana 02 March 2011 (has links)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Animal performance was evaluated in bovine cattle livestock systems using tropical
pasture based diets through a meta-analysis process, which included a database of
scientific articles, dissertations and theses. Data was tabulated and categorized
identifying the scientific work, the experiment, animals, animal performance, pasture,
supplements and grazing. The conversion efficiency of supplement use was
evaluated in the studies containing control (no supplementation), and calculated as
the change in average daily gain of individual weight (CoEfADGan) or area (ha,
CoEfADGha) per kg of supplement offered. Data distribution from a general database
was assessed. To analyze the factors affecting animal performance variables the
general database was sub-divided into two sub-bases, rainy and dry season. To
evaluate the factors affecting animal performance variables data was weighted by n
treatments and analysis of variance and covariance was used. The average daily
gain of body weight per animal (ADGan, 0.870 vs. 0.611 kg / animal / day) and per
hectare (ADGha vs. 5.76. 4.59 kg / ha / day), as well as daily animal load per hectare
(DALha, 1483 vs. 1211 kg / ha / day) were higher (P <0.05) during the rainy season
than during the dry season. During the rainy season, ADGan was lower in the genus
Brachiaria and superior in the Panicum (P <0.05), but the DALha and ADGha were
higher (P <0.05) in Cynodon. In dry season, ADGan was lower (P <0.05) in the
Brachiaria than in Cynodon and Panicum, and ADGha was higher (P <0.05) in
Panicum. In both dry and rainy seasons, ADGan, ADGha and DALha increased
linearly (P <0.01) with increasing levels of supplementation, which ranged from zero
to 1.6% of live weight (LW). The ADGan increased linearly (P <0.05) and DALha
decreased linearly (P <0.05), while ADGha was quadratically (P <0.05) related to the
increased availability of herbage. Animal performance was linear and positively
correlated with leaf: stem proportion from pastures (P <0.05), both in the rainy and
dry seasons. During the rainy season the best responses in ADGan and ADGha
were obtained from the use of protein supplement compared with supplemental
energy or proteinated salt (P <0.05), while the use of energy supplement enabled a
higher DALha (P <0,05). During the dry season, ADGha was not affected by
supplement type, but the best responses were obtained for ADGan with energy
supplement (P <0.05) while protein supplementation, either through proteinated salt
or protein supplement, was associated with a higher DALha (P <0.05). During the
rainy season animal performance was quadratically (P <0.05) related to live weight
(LW) of animals, and ADGan maximized in animals weighing about 380 kg and
ADGha maximized in animals weighting about 400 kg. In the dry season, ADGan and
ADGha were linearly and positively related animal LW (P <0.05). Pasture neutral
detergent fiber (NDF) content ranged from 46 to 82% in dry matter (DM) and was
quadratically related to ADGan (P <0.05) being that maximum gain was obtained with
NDF content around 66%. Crude protein (CP) of pasture ranged from 1.9 to 21.6% in
DM and was linear and positively correlated with ADGan (P <0.05). The ADGan was
linear and negatively associated with the value obtained by the ratio between the
content (% DM) of total digestible nutrients (TDN) and CP of pasture (P <0.05).
Nitrogen fertilizer was linearly (P <0.05) associated with increased DALha, both in the
rainy and dry seasons. The CoEfADGan and the CoEfADGha decreased lineally (P
<0.05) with increasing animal LW during the rainy season, becoming negative from
around 360 kg. In the rainy season as well as in the dry season, both efficiencies
were also negatively (P <0.05) related to the CP content of pasture, being also
negative from 10% CP, and positive and quadratically (P <0.05) related to the leaf:
stem ratio of the pastures. Highest efficiencies were observed with leaf: stem ratio
3.7:1. During the dry season EfCoGMD and EfCoGAD decreased (P < 0.05) with
the increasing the value obtained by the TDN: CP supplement ratio, becoming
negative from 4,3:1. In conclusion, the meta-analysis enabled the identification of
beef cattle performance in tropical pastures showing that it is influenced in an
integrated manner by factors associated with several features such as climate,
pasture, animal, handling and supplementation. However, the degree to which each
factor influences animal performance could be more accuratelly assessed if
publications were standardized and contained essential information regarding more
detailed methodological descriptions and basic statistical information. / Foi avaliado o desempenho animal em sistemas pecuários bovinos utilizando dietas
à base de pastagens tropicais através de processo meta-analítico, que incluiu na
base de dados artigos científicos, dissertações e teses. Foram tabulados e
categorizados dados de identificação do trabalho científico, do experimento, dos
animais, do desempenho animal, da pastagem, dos suplementos e do método de
pastejo. A eficiência de conversão do uso do suplemento foi avaliada nos estudos
contendo tratamento testemunha (sem suplementação), e calculada como a
variação do ganho médio diário de peso individual (EfCoGMD) ou por área
(EfCoGAD) por kg de suplemento ofertado. Foi avaliada a distribuição dos dados da
base geral e, para analisar os fatores que afetam as variáveis de desempenho
animal, a base geral foi subdividida nas sub-bases águas e secas. Para avaliação
dos fatores que afetam as variáveis de desempenho animal os dados foram
ponderados pelo n dos tratamentos e utilizado análise de variância e covariância. O
ganho médio de peso individual (GMD, 0,870 vs. 0,611 kg/animal/dia) e o ganho por
área (GAD, 5,76 vs. 4,59 kg/ha/dia), assim como a carga animal (CAD, 1483 vs.
1211 kg/ha/dia) foram maiores (P<0,05) no período das águas que no período das
secas. No período das águas o GMD foi menor na Brachiaria e superior no gênero
Panicum (P<0,05), mas a CAD e GAD foram superiores (P<0,05) no Cynodon. Nas
secas, o GMD foi menor (P<0,05) na Brachiaria que no Cynodon ou Panicum, e o
GAD foi maior (P<0,05) no Panicum. Independentemente do período do ano, o
GMD, o GAD e a CAD aumentaram linearmente (P<0,01) com o aumento do nível
de suplementação, o qual variou de zero a 1,6% do peso vivo (PV). O GMD
aumentou linearmente (P<0,05) e a CAD diminuiu linearmente (P<0,05), enquanto o
GAD foi quadraticamente (P<0,05) relacionado com o aumento da oferta de
forragem total. O desempenho animal foi linear e positivamente relacionado com
proporção folha:colmo das pastagens (P<0,05), tanto no período das águas quanto
no período das secas. No período das águas as melhores respostas em GMD e
GAD foram obtidas com o uso de suplemento protéico quando comparado com
suplemento energético ou sal proteinado (P<0,05), enquanto o uso de suplemento
energético possibilitou maior CAD (P<0,05). No período das secas o GAD não foi
afetado pelo tipo de suplemento, mas as melhores respostas para GMD foram
obtidas com suplemento energético (P<0,05) enquanto que a suplementação
proteica, seja através de sal proteinado ou suplemento proteico, foi relacionada com
maior CAD (P<0,05). No período das águas o desempenho animal foi
quadraticamente (P<0,05) relacionado com o peso vivo (PV) dos animais, sendo o
GMD maximizado com animais pesando em torno de 380 kg e o GAD maximizado
com animais de 400 kg. Nas secas o GMD e o GAD foram linear e positivamente
relacionados com o PV dos animais (P<0,05). O teor de fibra em detergente neutro
(FDN) da pastagem variou de 46 a 82 % na matéria seca (MS) e foi quadraticamente
relacionado com o GMD (P<0,05) sendo que o máximo GMD foi obtido com teor de
FDN em torno de 66%. O teor de proteína bruta (PB) da pastagem variou de 1,9 a
21,6 % na MS e foi linear e positivamente relacionado com GMD (P<0,05). O GMD
foi linear e negativamente associado com o valor obtido pela razão (relação) entre o
teor (% na MS) de nutrientes digestíveis totais (NDT) e PB da pastagem (P<0,05). A
adubação nitrogenada foi linearmente (P<0,05) relacionada com aumento da CAD
tanto no período das águas como no período das secas. A EfCoGMD e a EfCoGAD
diminuíram linearmente (P<0,05) com o aumento do PV dos animais no período das
águas, passando a serem negativas a partir de em torno de 360 kg. Tanto nas águas
como nas secas, ambas as eficiências também foram negativamente (P<0,05)
relacionadas com o teor de PB da pastagem, passando a serem negativas a partir
de 10% de PB, e positiva e quadraticamente (P<0,05) relacionadas com a relação
folha:colmo das pastagens. Máximas eficiências foram observadas com relação
folha:colmo em torno de 3,7:1. No período das secas a EfCoGMD e a EfCoGAD diminuíram linearmente (P<0,05) com o aumento do valor observado na relação
NDT:PB do suplemento, passando a serem negativas a partir de 4,3:1. Em
conclusão, a meta-análise possibilitou identificar que o desempenho de bovinos de
corte em pastagens tropicais é influenciado de forma integrada por fatores
associados às características do clima, das pastagens, dos animais, do manejo e da
suplementação. Contudo, o grau de influência de cada fator seria melhor definido se
as publicações nessa área de conhecimento fossem padronizadas e contivessem
informações mínimas tanto em relação à descrição da metodologia como em relação
à presença de informações estatísticas básicas.
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Life in the rural Shanxi house : seasonal resonances and techniques of transformation in north-central ChinaBruckermann, Charlotte Louise January 2013 (has links)
This thesis gives an experiential account of notions of the home in contemporary rural China. Based on a year of fieldwork in a mountain village in rural Shanxi Province, the thesis explores everyday and ritual practices to investigate how people make themselves at home under conditions of political economic transformation. Villagers accommodate and resist conflicts of interest by negotiating boundaries of insiders and outsiders through the home. Differences of gender and generation come to the fore as people compromise between aspiration and pragmatism within the home under conditions of resurgent market competition. The theoretical concern of the thesis lies in connecting wider social processes to personal life projects through the intimate sphere of the home. The rhythm of the seasons patterns the thesis into spring, summer, autumn and winter chapters, as the seasons were pivotal in ordering people’s everyday practices and ritual activities within a shared social and ecological environment. The opening chapter on the autumn harvest coincided with my arrival in the village. The chapter explores how labour, and particularly women’s labour, transforms the earth into affective belonging, and how women negotiate conflicts over food consumption between the agricultural and market economy. The winter chapter parallels tales of personal life history with wider kinship networks across various generations, while simultaneously tracing bodily pathways from the domain of the hot stove in the home to the cold grave in the fields. The next chapter begins with the celebratory periods of springtime during the New Year Festival, a time of ritual renewal in the home when women partook in a local domestic ritual of propitiating the little spirits of the house. At Qingming Festival villagers’ practices of worshipping the ancestors in the fields were juxtaposed with a tour company’s staging of an elaborate ritual revival of star worship in the village. Conflicting aspirations over the future of the past thereby tore fissures into the emerging ritual terrain between outside spectacle and inside convergence. The last ethnographic chapter looks at the summer as a time for regenerating life, particularly through marriage and children. Reciprocal caring cycles between different generations of women are central to balancing domestic and occupational aspirations in negotiation with the local implementation of the family planning policy. House-based rituals at children’s birthday parties and bridal farewell ceremonies formally celebrate the roles of matrilateral relatives.
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Le cycle de l'azote de marais filtrants artificiels : potentiel d'émission de gaz à effet de serre (GES) et exportation de formes azotéesMaltais-Landry, Gabriel January 2008 (has links)
Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal.
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Reorganizace 1. české fotbalové soutěže / Reorganization of the first Czech football leagueWágner, Martin January 2016 (has links)
Title: Reorganization of the First Czech Football League Objectives: The main objective of the thesis was to find opinions of sports redactors on changing structure in the first Czech football league. Methods: We used a poll for finding our objectives. The poll was create in apllication click4survey.cz and it was sending by email to all respondents. The respondents were 50 football journalists. The rate of return of the poll was 46%. Results: In our research 73% of respondents agree with a new model of league. They accede with raising of count of matches in czech league (64%). They concur that more matches in season will improve footballer performance (64%) and financial income (55%). 55% of journalist approve with the play-off between the first and the second league. Conclusion: The footballer journalist agree with the benefits of a higher matches in the league and new structure of the league. Keywords: 1. Czech league, number of matches in the season, profesional football in Czech republic, gaming structure in e-pojistení league
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Prévisibilité potentielle des variables climatiques à impact agricole en Afrique de l'Est et application au sorgho dans la région du mont Kenya / Potential predictability of crop impacting climate variables for East Africa and application to sorghum in the Mt Kenya areaBoyard-Micheau, Joseph 22 November 2013 (has links)
Dans les pays du Sud ruraux et à faibles revenus, la vulnérabilité des zones agricoles pluviales, face à la variabilité pluviométrique, nécessite de trouver des solutions efficaces pour limiter les effets des aléas climatiques sur les récoltes. La prévision des caractéristiques des saisons des pluies quelque temps avant leur démarrage devrait aider à l’établissement de stratégies agricoles d’adaptation aux aléas pluviométriques. C’est à cet objectif que s’attache ce travail, appliqué à l’Afrique de l’Est (Kenya et nord de la Tanzanie), et articulé en 3 parties :- Définir et comprendre le comportement des descripteurs intra saisonniers (DIS) qui feront l’objet de l’étude de prévisibilité. Un travail spécifique a permis le développement d’une nouvelle approche méthodologique dans la manière de définir les démarrages (DSP) et fins (FSP) de saisons des pluies à l’échelle régionale. Cette approche basée sur une analyse multivariée, permet de s’affranchir des choix subjectifs de seuils pluviométriques imposés par les définitions communément utilisée en agro-climatologie. Une analyse de cohérence spatiale à l’échelle inter annuelle montre que, pour les deux saisons des pluies (long rains et short rains), le cumul saisonnier et le nombre de jours de pluie présentent une forte cohérence spatiale, tandis qu’elle est plus modérée pour le démarrage et fin des saisons et faible pour l’intensité quotidienne moyenne.- Analyser la prévisibilité des DIS aux 2 échelles spatiales régionale et locale en s’appuyant sur les simulations numériques du modèle climatique global ECHAM 4.5. Les précipitations quotidiennes simulées par le modèle, même après correction des biais, ne permettent pas d’appréhender correctement la variabilité interannuelle des DIS. Une spécification de la variabilité des DSP et FSP menée par le biais de modèles statistiques construits à partir d’indices climatiques observés, présuppose une prévisibilité modérée des deux descripteurs à l’échelle locale (régionale), et cela quelle que soit la saison. Le développement de modèles statistico-dynamiques à partir des champs de vents simulés par ECHAM 4.5, en mode forcé par les températures marines observées d’une part et prévues d’autre part, montre également des performances faibles localement et régionalement. - Explorer la manière dont la variabilité spatio-temporelle des paramètres climatiques et environnementaux module la variabilité des rendements de sorgho. Ces rendements sont simulés par le modèle agronomique SARRA-H à partir de données climatiques observées (1973-2001) dans 3 stations localisées à différentes altitudes le long des pentes orientales du Mt Kenya. Le cumul précipité et la durée de la saison expliquent une part importante de la variabilité des rendements. D’autres variables apparaissent comme jouant un rôle non négligeable ; le nombre de jours de pluies, l’intensité quotidienne moyenne ou encore certains DIS relatifs à l’organisation temporelle des pluies au sein d’une saison en font partie. L’influence des autres variables météorologiques est seulement visible pour les ‘long rains’ avec une covariation négative entre les rendements et les températures maximales ou, le rayonnement global. La date de semis semble jouer un rôle dans la modulation des rendements pour les stations de haute et moyenne altitudes, mais avec des différences notables entre les deux saisons des pluies. / In Southern countries with rural low income populations, the vulnerability of rainfed agriculture to rainfall variability requires effective solutions to mitigate the effects of climatic hazards on crops. Predicting the characteristics of rainy seasons some time before they start should help the establishment of agricultural adaptation strategies to rainfall hazards. This is the objective of the present study, focused on East Africa (Kenya and northern Tanzania), and divided in three parts:- Define and document intra-seasonal descriptors (ISD) that will be considered in the predictability study. A new methodological approach has been developed in order to define the onset date (ORS) and the cessation date (CRS) of the rainy seasons at the regional level. Based on a multivariate analysis, it eliminates the subjective choice of rainfall thresholds imposed by the definitions commonly used in agroclimatology. An analysis of spatial coherence at interannual time-scale shows that for the two rainy seasons ("long rains" and "short rains"), the seasonal amount and the number of rainy days have a high spatial coherence, while it is medium for the onset and cessation dates and low for the average daily rainfall intensity.- Analyze the predictability of the ISD at both regional and local scales based on numerical simulations from the global climate model ECHAM 4.5. Daily precipitation simulated by the model, even after bias correction, do not correctly capture the IDS interannual variability. A specification of the ORS and CRS variability using statistical models applied to observed climate indices, suggests quite a low predictability of the descriptors at the local (regional) scale, regardless of the season. The development of statistical-dynamical models from wind fields simulated by ECHAM 4.5, in experiments forced by either observed or predicted sea temperatures, also shows quite poor skills locally and regionally.- Explore how the space-time variability of climatic and environmental factors modulate the variations of sorghum yields. Crop yields are simulated by the agronomic model SARRA-H using observed climate data (1973-2001) at three stations located at different elevations along the eastern slopes of Mt Kenya. The seasonal rainfall accumulation and the duration of the season account for a large part of the yields variability. Other rainfall variables also play a significant role, among which the number of rainy days, the average daily intensity and some ISD related to the temporal organization of rainfall within the season. The influence of other meteorological variables is only found during the long rains, in the form of a negative correlation between yields and both maximum temperature and global radiation. Sowing dates seem to play a role in modulating yields for high and medium altitude stations, but with notable differences between the two rainy seasons.
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Vznik a vývoj kanoistiky v Nymburce a Poděbradech se zvláštním zřetelem k práci s mládeží / The origin and the development of canoeing in Nymburk city and Poděbrady city in perspective of the work with the youthHrušková, Marie January 2019 (has links)
The paper elaborates the history of "LOKOMOTIVA Nymburk" canoe sprint squad and is sectioned into: between wars period the war years 1938 - 1945 1945 - 1970 1970 - 2000 2000 - present The paper also elaborates a general origin of canoeing in Bohemia, brief 80-year history of the nearest competitor (and friend) - "Canoe Sprint Squad Poděbrady" and the history of dragon boats in Nymburk city. The history, the development and the present state of particular categories at "Lokomotiva Nymburk" and "Canoe Sprint Squad Poděbrady" is also elaborated. The categories are "scholar", "youth" and "junior". Keywords Canoe Sprint History Canoe Kayak Shipyard Races Championship Grand Prix Medal Ranking Season Training Camp DragonBoats
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Performance de cruzamentos entre genitores tolerantes à ferrugem asiática da soja / Performance of crosses among parents with tolerance to soybean rustMarques, Marcelo Cunha 29 April 2014 (has links)
A ferrugem asiática da soja (FAS) foi constatada pela primeira vez no Brasil em 2000/2001, tendo desde então ocasionado elevados prejuízos aos sojicultores. O emprego de cultivares geneticamente resistentes/tolerantes é um componente fundamental de um programa integrado para controle desta doença. A pesquisa tem encontrado muita dificuldade, pois o fungo Phakopsora pachyrhizi apresenta grande variabilidade patogênica e as poucas fontes de resistência/tolerância disponíveis não são adaptadas às condições brasileiras. O objetivo geral do presente estudo foi avaliar a performance de linhagens experimentais de soja derivadas de cruzamentos entre genitores tolerantes à ferrugem asiática, com a finalidade de incrementar a tolerância a FAS. Os experimentos foram conduzidos durante os anos agrícolas 2008-09, 2009-10 e 2010-11, nas Estações Experimentais Anhumas e Areão e na sede (ESALQ), áreas estas pertencentes à Escola Superior de Agricultura \"Luiz de Queiroz\" e situadas no município de Piracicaba - SP. Os experimentos com as progênies nas gerações F2:4, F2:5 e F2:6 foram delineados em blocos aumentados de Federer, sendo cada experimento subdividido em conjuntos experimentais com testemunhas comuns. Para estimar o efeito ferrugem e o nível de tolerância de cada genótipo a FAS, em cada local e ano agrícola, foram conduzidos dois experimentos com aplicações de fungicidas diferentes: no primeiro experimento aplicou-se fungicida para controle apenas das doenças de final de ciclo (DFC), enquanto que no segundo experimento, foi aplicado fungicida com princípios ativos para o controle tanto das DFC quanto da FAS. Nos experimentos com controle de DFC e FAS houve tendência de médias maiores para PG e PCS. A metodologia do contraste de reações das plantas a fungicidas distintos foi eficiente em estimar o efeito ferrugem e a reação de cada genótipo a FAS. A pressão do fungo da FAS sobre as progênies variou entre os anos agrícolas, tendo sido maior em 2009-10. O local Anhumas destacou-se entre os demais, possibilitando altas médias de produtividade de grãos (PG) em todos os anos agrícolas avaliados. Este ambiente também mostrou-se apropriado para estimar o efeito ferrugem. Os genitores 1 (USP 04-18.032) e 5 (USP 11-38) foram os que originaram as progênies mais precoces e os genitores 3 (USP 97-08.135) e 10 (USP 191-104-11) as progênies mais tardias. Os genitores 8 (USP 191-102-03) e 10 (USP 191-104-11) foram os que mais contribuíram para elevadas médias de PG e peso de cem sementes (PCS). Já o genitor 4 (BUSP 16-015) destacou-se na média de PG, além de ter apresentado valor alto de capacidade média de combinação para PG, na média dos três anos agrícolas. O cruzamento 7x10 (USP 14-06-20 x USP 191-104-11) destacou-se originando o maior número de progênies com desempenho superior em PG e tolerância a FAS. Por outro lado, os genitores 1 (USP 04-18.032), 3 (USP 97-08.135) e 9 (USP 191-103-12) foram os que menos contribuíram para a geração de progênies com alta PG. Houve variação entre as progênies dentro de cruzamentos para as estimativas dos parâmetros de adaptabilidade e estabilidade fenotípica. Consequentemente, as progênies 231- 2224-12 (6x8 = USP 97-10.046 x USP 191-102-03), 231-6127-06 (1x8 = USP 04- 18.032 x USP 191-102-03) e 231-1120-08 (7x10 = USP 14-06-20 x USP 191-104-11) foram as mais indicadas para a seleção recorrente para tolerância a FAS. / The Asian soybean rust (FAS) was reported for the first time in Brazil in 2000/2001 and has since caused considerable damage to soybean crops. The use of genetically resistant cultivars is a key component of an integrated program to control this disease. In the researches has been found many difficulties because the fungus Phakopsora pachyrhizi shows great variability in pathogenicity and the small number of sources of resistance that are available has no adaptability to Brazilian environmental conditions. The overall objective of this study was to evaluate the performance of experimental soybean lines derived from crosses among soybean rust tolerant parents, in order to increase the horizontal resistance (tolerance). The experiments were conducted during the crop years 2008-09, 2009-10 and 2010-11, in three experimental stations (Anhumas, Areão and ESALQ), areas belonging to the College of Agriculture \"Luiz de Queiroz\" and located within the municipality of Piracicaba, State of São Paulo, Brazil. The experiments with progenies in generations F2:4, F2:5 and F2:6 were designed in augmented block of Federer, with each experiment divided into sets with common checks. In order to estimate the effect of FAS and the level of tolerance of each genotype to FAS, in each location and crop year, there was conducted two experiments with applications of different fungicides: in the first experiment was applied one fungicide for controlling only the soybean late season leaf diseases (DFC), while in the second experiment were applied one fungicides with active principles for controlling DFC as well as FAS. In the experiments with control of DFC and FAS there was tendency of superior means for PG and PCS. The methodology of contrasting the plant reactions to different fungicides was effective for estimating the effect of FAS and the level of tolerance of each genotype to FAS. The pressure of the fungal FAS on progenies ranged among crop years, being highest in 2009-10. The location Anhumas stood out among the rest, enabling high average seed yield (PG) in all evaluated crop years; this environment also proved to be suitable for estimating the rust effect. The parents 1 (USP 04-18032) and 5 (USP 11-38) were those that originated the earliest progenies and parents 3 (USP 97-08135) and 10 (USP 191-104-11) the later progenies. The parents 8 (USP 191-102-03) and 10 (USP 191-104-11) were the main contributors to higher average PG and one hundred seed weight (PSC). However, the parent 4 ( BUSP 16-015 ) exceeded for PG, besides also have presented high value of average combining ability for PG, in average of the three crop years. The cross 7x10 (USP 14-06-20 x USP 191-104-11) stood out by originating the highest number of progenies with superior performance in PG and tolerance to FAS. On the other hand, the parents 1 (USP 04-18 032), 3 (USP 97-08 135), and 9 (USP 191-103-12) have contributed with the smallest number of superior progenies in PG. There was variation among progenies within cross, for the estimates of adaptability and phenotypic stability parameters. Consequently, the progenies 231-2224-12 (6x8 = USP 97-10 046 x USP 191-102-03), 231-6127-06 (1x8 = USP 04-18 032 x USP 191- 102-03), and 231-1120 - 08 (7x10 = USP 14-06-20 x USP 191-104-11) were the most suitable for the utilization as parents in the recurrent selection for tolerance to FAS.
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