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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Comportamento do tomate (Lycopersicon esculentum Mill.) aos indutores de resistência à seca / Tomato performance to the resistance inductors in drought

Renato Agnelo da Silva 10 November 2006 (has links)
O presente trabalho teve por objetivo estudar a influência de um ativador de plantas e de dois fungicidas sobre o comportamento de plantas de tomate (Lycopersicon esculentum Mill.), cultivadas em vasos no interior de casa-de-vegetação, no município de Piedade, SP, e submetidas a diferentes condições de fornecimento de água. Os produtos químicos aplicados de forma isolada foram respectivamente dois fungicidas, a piraclostrobina (PRT) e a azoxistrobina (AZT); um ativador de plantas, o acibenzolar-s-metil (ASM). Foi incluída uma testemunha, sem aplicações de produtos. Todos os tratamentos mantiveram-se sob quatro níveis de água (90%, 72 %, 54% e 36% da capacidade de recipiente do substrato). Foram realizadas quatro aplicações dos produtos, sendo a primeira um dia antes do plantio definitivo das mudas, a segunda aos 10 dias após o plantio (DAP), seguindo-se mais duas aplicações com intervalo de 10 dias entre as mesmas. As avaliações foram efetuadas medindo os seguintes parâmetros: a) peso da massa seca da raiz, da parte aérea e total de cada planta aos 30 e 50 DAP; b) determinação do teor de clorofila das plantas aos 35 DAP, tomando-se como padrão o segundo folíolo da primeira folha abaixo do primeiro cacho floral; c) altura das plantas aos 29 e 49 DAP; d) número de folhas abaixo do primeiro cacho floral, aos 29 DAP; e) número total de folhas por planta aos 29 DAP; f) porcentagem de plantas com o primeiro cacho floral totalmente aberto aos 28 DAP; g) sintomas de deficiência hídrica aos 7 dias após a terceira e quarta aplicação dos produtos. Os resultados indicaram que as aplicações do acibenzolar-s-metil (ASM), piraclostrobina (PRT) e azoxistrobina (AZT) evitaram sintomas visíveis de murcha ocasionada pelo estresse hídrico, enquanto que em situações com maiores níveis de fornecimento de água, ocorreu maior acúmulo de matéria seca nas raízes e na parte aérea do tomateiro. / The aim of this study was to evaluate the influence of a systemic acquired resistance activator and two fungicides on tomato (Lycopersicon esculentum Mill.) plants, cultivated in pots in a greenhouse, which was exposed to different conditions of water supply. The products which were sprayed without tank mixtures (applied in their isolated form), were respectively two fungicides: piraclostrobina (PRT) and azoxistrobina (AZT); and one systemic acquired resistance activator, the acibenzolar-s-methyl (ASM), and one without products. All treatments were rent on four water levels (90%, 72%, 54% and 36% of container capacity). Four sprays of these produtcs were done: the first was done one day before planting, and the second 10 days after planting. Two more spray was done with 10 days interval between them. The following parameters were taken into measured to do the evaluations: a) dry weights of the root mass, the leaf area, and the entirely plant at 30 and 50 days after the planting (DAP); b) determination of the chlorophyll contents of the plants at 35 DAP, taking as the standard the second leaflet of the first leaf, immediately bellow the first inflorescence; c) plant height at 29 and 49 DAP; d) number of leaves below the first inflorescence at 29 DAP; e) total number of leaves for each plant at 29 DAP; f) percentage of plants with the first inflorescence totally opened at 28 DAP; g) water stress symptoms evaluation at the 7th day after the third and the fourth product sprays. The results indicated that the sprays of acibenzolar-s-methyl (ASM), piraclostrobina (PRT) and azoxistrobina (AZT) avoided the visible wilt symptoms due to the hydric stress, while in situations with higher water supply levels, the accumulation of dry material in the roots and in the leaf area of tomato plants increased.
22

A qualitative analysis of the effect of the remedial physical conditioning program on retention and attrition as it relates to Semper Fit and the P2T2 account

Newcomb, Joseph Lewis, III 03 1900 (has links)
Approved for public release, distribution is unlimited / As the Department of the Navy and Marine Corps looks for efficiencies in Force End Strength Management and improvement to Sailor and Marine quality of life, Semper Fit may provide some answers. This research specifically focuses on the Marine Corps Body Composition Program (BCP) and Remedial Physical Conditioning Program (RPCP). The purpose is to qualitatively analyze a program for Marines who are overfat or on remedial physical training (PT) programs, focusing on the feasibility of Marines obtaining professional assistance from Semper Fit. The scope of this research evaluates existing programs and analyzes their beneficial affects in improving retention and attrition of RPCP Marines. The research shows that Semper Fit professionals would provide overfat and poorly conditioned Marines by USMC standards a consistent program through mandatory training in health, nutrition, and fitness. Semper Fit would directly support unit commanders with classes in nutrition, health, and fitness tailored for each RPCP Marine. Furthermore, this study validates the newly established Department of Defense Physical Readiness Test Standards recently adapted by the Department of the Navy as highly accurate. This study recommends the Marine Corps further expand Semper Fits role in support of the Marine and unit commander. / Captain, United States Marine Corps
23

The "road" to success : importance of construction on reconstruction in conflict-affected states

Novotny, Ryan J. 12 1900 (has links)
Approved for public release; distribution is unlimited / The United States has spent over $2 billion during the last six years to reconstruct and stabilize Afghanistan through the Commander's Emergency Response Program (CERP). This effort is only one of several simultaneous programs attempting to stabilize Afghanistan using approaches including providing humanitarian aid, education, government and security reform, and construction. Construction often involves simple infrastructure development with tangible benefits including increased access, growing commerce and better security. Construction projects can also employ the local population and, if done correctly, develop a sense of community and social capital. What causes construction projects to miss the mark failing to result in creating a stable community? This research compares four different construction programs including CERP, National Solidarity Program (NSP), United States Agency for International Development (USAID), and Provincial Reconstruction Teams (PRT) to determine their potential impact on Afghan stability. It uses a combination of statistical regression, correlation, geospatial and temporal analysis to compare completed construction with recorded SIGACTs (Significant Acts) reported by U.S. forces and NGOs. The results imply that the identified stabilization programs are not using construction effectively to create social capital and stability.
24

The British North Sea: The Importance Of And Factors Affecting Tax Revenue From Oil Production

Hill, Mark 10 February 2004 (has links) (PDF)
The oil industry is the richest and most influential industry in the world. The industry has moved the fates of nations. Oil is required to fight wars and exert power, and the restriction of this energy source is paramount to the restriction of movement, control, and in the end, power. Management of this resource and the tax revenue it generates are of serious strategic importance, both domestically and internationally. Understanding the results of taxation for this important commodity is important to international relations as well. The tax system affects tax revenue, government actions, oil company actions, and the oil supply itself. Each of these is important to international relations.

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