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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.
1

Efeito da adi??o do leite de vaca ? calda bordalesa no controle da var?ola do mamoeiro em diferentes densidades de cultivo em sistema org?nico / Effect of the addition of cow's milk to bordeaux in control of smallpox of papaya in different densities in organic farming

Silverio, Thiago Cunha 04 December 2015 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-05-30T13:53:16Z No. of bitstreams: 1 2015 - Thiago Cunha Silverio.pdf: 923183 bytes, checksum: 214eb765e4eeb06060ac4c9f90c393e3 (MD5) / Made available in DSpace on 2017-05-30T13:53:16Z (GMT). No. of bitstreams: 1 2015 - Thiago Cunha Silverio.pdf: 923183 bytes, checksum: 214eb765e4eeb06060ac4c9f90c393e3 (MD5) Previous issue date: 2015-12-04 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / The study was conducted, in the center of Integrated Rural Education State-CEIER, located in the municipality of White Eagle, Northwest of the State of Esp?rito Santo, the aim of this study was to evaluate the action of the whole milk added to the Bordeaux mixture Asperisporium caricae control, causative agent of smallpox and the behavior of this disease in different population densities the papaya tree. In setting up the experiment, the seedlings were separated by size: smaller, medium-sized and larger, so that the implementation of the orchard, there was within each block seedlings with similar vigor. The seedlings of papaya (Carica papaya L.) were prepared, using seeds of papayas hermaphrodites of the cultivar ' Golden Sunrise ', belonging to the soil. On planting and leading between each block, was grown legumes Sunn hemp (Crotalaria juncea) as green manure. The plants were bi-monthly composted manure tanned and potassium sulphate and alternating sprays with foliar fertilizer Agrobio (2%). The phytosanitary control followed the rules of organic farming. Spontaneous herbs were controlled by means of plant cover (Sunn hemp biomass) and periodic ro?adas. It took the experimental design of randomized blocks, being arranged in factorial arrangement of treatments. We evaluated the whole milk concentrations (0,0%, 5% and 10%) + 1% Bordeaux mixture (subplots), in six different breeding densities (1667, 2167, 3167, 2667, 3667 and 4167 plants. hectare-1). Based on the results it is concluded that: the addition of raw cow's milk to the Bordeaux mixture enables greater control of smallpox of papaya, both on the leaves, as in the fruits; the mixture prepared with 10% of raw cow's milk in Bordeaux mixture, the greater the inhibition signs of smallpox from papaya, both on the leaves, as in the fruits; analyzing by vegetative aspect of papaya, the greatest effect of the addition of raw cow's milk in Bordeaux mixture occurs in younger leaves; the extent to which increasing the dosage raw cow's milk, from zero to 10%, in Bordeaux, increases linearly, the ability to control the smallpox of the papaya, both on the leaves, as in the fruits; less degradated plantations allow lower occurrence of smallpox from papaya, both on the leaves, as in the fruits, if compared to those more Caterpillar; the density of plantation of papaya of 1667 plants.ha-4167 plants even 1.ha-1 the severity of smallpox of the papaya tree increases in a linear fashion; smallpox papaya progresses, exponentially, from bottom to top and/or older leaves to the newest; the part of the fruit, stuck in the plant, yet more exposed to external factors, is the most affected by smallpox of papaya, compared with the part facing the stem; analyzing for the papaya reproductive aspect, the greatest effect of the addition of raw cow's milk in Bordeaux is noticed on the face less exposed of the fruit; and, eat avocado with more leaves infected by smallpox will produce fruits also more affected by this disease / O estudo foi conduzido, no Centro Estadual Integrado de Educa??o Rural ? CEIER, situado no munic?pio de ?guia Branca, Regi?o Noroeste do Estado do Esp?rito Santo, o objetivo deste trabalho foi avaliar a a??o do leite integral adicionado ? calda bordalesa no controle do Asperisporium caricae, agente causal da var?ola e o comportamento desta doen?a em diferentes densidades de cultivo do mamoeiro. Na montagem do experimento, as mudas foram separadas por tamanho: menores, m?dias e maiores, de forma que na implanta??o do pomar, houvesse dentro de cada bloco mudas com padr?o de vigor parecido. As mudas de mamoeiro (Carica papaya L.) foram preparadas, utilizando-se sementes de mam?es hermafroditas da cultivar ?Sunrise Golden?, pertencente ao grupo Solo. Na entrelinha de plantio e entre cada bloco, foi cultivada a leguminosa crotal?ria (Crotalaria juncea) como adubo verde. As plantas foram bimensalmente adubadas com esterco curtido e sulfato de pot?ssio e pulveriza??es alternadas, com o biofertilizante l?quido Agrobio (2%). O controle fitossanit?rio seguiu as normas da agricultura org?nica. As ervas espont?neas foram controladas por meio de cobertura vegetal (biomassa da crotal?ria) e de ro?adas peri?dicas. Adotou-se o delineamento experimental de blocos ao acaso, sendo os tratamentos dispostos em parcelas subdivididas. Avaliaram-se as concentra??es de leite integral (0,0%, 5% e 10%) + calda bordalesa 1% (subparcelas), dentro de seis densidades de cultivo diferentes (1667, 2167, 2667, 3167, 3667 e 4167 plantas.hectare-1). Com base nos resultados conclui-se que: a adi??o de leite de vaca cru ? calda bordalesa possibilita maior capacidade de controle da var?ola do mamoeiro, tanto nas folhas, quanto nos frutos; a mistura preparada com 10% de leite de vaca cru na calda bordalesa, propiciou a maior inibi??o dos sinais da var?ola do mamoeiro, tanto nas folhas, quanto nos frutos; analisando pelo aspecto vegetativo do mamoeiro, o maior efeito da adi??o do leite de vaca cru na calda bordalesa ocorre nas folhas mais novas; a medida em que se aumenta a dosagem de leite de vaca cru, de zero at? 10%, na calda bordalesa, aumenta-se, linearmente, a capacidade de controle da var?ola do mamoeiro, tanto nas folhas, quanto nos frutos; plantios menos adensados possibilitam menor ocorr?ncia da var?ola do mamoeiro, tanto nas folhas, quanto nos frutos, se comparados ?queles mais adensados; da densidade de plantio do mamoeiro de 1667 plantas.ha-1 at? 4167 plantas.ha-1 a severidade da var?ola do mamoeiro aumenta de maneira linear; a var?ola do mamoeiro progride, exponencialmente, de baixo para cima e/ou das folhas mais velhas para as mais novas; a parte do fruto, preso ainda na planta, mais exposta aos fatores externos, ? a mais acometida pela var?ola do mamoeiro, se comparado com a parte voltada para o caule da mesma; analisando pelo aspecto reprodutivo do mamoeiro, o maior efeito da adi??o do leite de vaca cru na calda bordalesa ? notado na face menos exposta do fruto; e, mamoeiros com as folhas mais infectadas pela var?ola produzir?o frutos tamb?m mais acometidos por esta doen?a.
2

Comportamento vegetativo e reprodutivo do mamoeiro em diferentes densidades de cultivo org?nico / Vegetative and reproductive behavior of papaya in different densities of organic farming.

Rezende, Nilson Costa 18 February 2016 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2017-04-05T11:16:21Z No. of bitstreams: 1 2016 - Nilson Costa Rezende.pdf: 1161142 bytes, checksum: efc8ca5f40de89a345030c29f9450223 (MD5) / Made available in DSpace on 2017-04-05T11:16:21Z (GMT). No. of bitstreams: 1 2016 - Nilson Costa Rezende.pdf: 1161142 bytes, checksum: efc8ca5f40de89a345030c29f9450223 (MD5) Previous issue date: 2016-02-18 / The study was conducted at the Integrated State Center for Rural Education - CEIER, in ?guia Branca, the Northwest Region of the Esp?rito Santo. The objective of this study was to evaluate the vegetative and reproductive behavior of papaya plant "Golden Sunrise", for different densities of cultivation under organic production system. The design chosen to effect the implementation of the experiment was randomized blocks, with six treatments (1667, 2167, 2667, 3167, 3667 and 4167 plants.hectare-1) and four replications (blocks). The density plantas.hectare 1667 was adopted as a control, the traditional crops of papaya 'Solo' group. Regarding the vegetative behavior planting density promoted in papaya plant: greater height, following a quadratic regression model; smaller diameter of the trunk, following a quadratic regression model; negatively affected the amount of leaves dropped by papaya plant, following a linear regression model; the presence of active photosynthetic leaves, following a quadratic regression model; the length of the leaves of papaya, following a quadratic regression model and leaf area, following a logarithmic regression model. In terms of floral behavior planting density did not affect the number of fruits and carpelloid pentandric and negatively influenced the number of perfect hermaphrodites fruits, following a quadratic regression model. Finally, for fruit production the density negatively influenced the number and weight of marketable fruit, following a quadratic regression model; positively the productivity of commercial fruits, following a quadratic regression model; the number of discarded fruits (out of commercial standard); negatively length and thickness of the fruit, following a quadratic regression model; negatively diameter of the fruit, following a logarithmic regression model and did not affect the number of seeds per fruit. / O estudo foi conduzido, no Centro Estadual Integrado de Educa??o Rural ? CEIER, situado no munic?pio de ?guia Branca, Regi?o Noroeste do Estado do Esp?rito Santo. O objetivo deste trabalho foi avaliar o comportamento vegetativo e reprodutivo do mamoeiro ?Sunrise Golden?, em rela??o a diferentes densidades de cultivo, sob sistema org?nico de produ??o. O delineamento escolhido para efetuar a implanta??o do experimento foi o de blocos ao acaso, com seis tratamentos (1667, 2167, 2667, 3167, 3667 e 4167 plantas.hectare-1) e quatro repeti??es (blocos). A densidade de 1667 plantas.hectare foi adotada como controle, tradicional nos cultivos de mamoeiro do grupo ?Solo'. Com rela??o ao comportamento vegetativo o adensamento de plantio promoveu nos mamoeiros: maior altura, seguindo um modelo de regress?o quadr?tico; menor di?metro do tronco, seguindo um modelo de regress?o quadr?tico; afetou de forma negativa a quantidade de folhas lan?adas pelos mamoeiros, seguindo um modelo de regress?o linear; a presen?a de folhas fotossinteticamente ativas, seguindo um modelo de regress?o quadr?tico; o comprimento das folhas dos mamoeiros, seguindo um modelo de regress?o quadr?tico e a ?rea foliar, seguindo um modelo de regress?o logar?tmica. Em termos de comportamento floral o adensamento de plantio n?o afetou o n?mero de frutos pent?ndricos e carpeloides e influenciou negativamente o n?mero de frutos hermafroditas perfeitos, seguindo um modelo de regress?o quadr?tico. Finalmente, para produ??o de frutos o adensamento influenciou negativamente o n?mero e o peso dos frutos comercializ?veis, seguindo um modelo de regress?o quadr?tico; positivamente a produtividade dos frutos comercializ?veis, seguindo um modelo de regress?o quadr?tico; o n?mero de frutos descartados (fora do padr?o comercial); negativamente o comprimento e espessura dos frutos, seguindo um modelo de regress?o quadr?tico; negativamente o di?metro dos frutos, seguindo um modelo de regress?o logar?tmico e n?o influenciou o n?mero de sementes por fruto.

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