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Dissertations / Theses on the topic 'Black rot disease'

Author: Grafiati

Published: 18 May 2024

Last updated: 31 July 2025

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1

Mauk, P. A., and R. B. Hine. "A Predictive System for Disease Incidence of Black Root Rot of Cotton." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/204490.

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A quantitative technique has been developed to assay cotton soils for populations of Thielaviopsis basicola, a soil occurring fungus that causes the seedling disease of cotton known as Black Root Rot. The procedure utilizes a soil dilution technique with a carrot extract agar containing etridiazol, Mystatin, streptomycin sulfate, chlortetracycline, calcium carbonate and PCNB. Populations of the fungus have been monitored from April to December, 1986 in a heavily infested Pima S-6 field in cooperation with Bob Cockrill, a Coolidge grower. When field soils containing approximately 600 propagules

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2

Rana, Sanjay. "Studies on the resistance of camellia sinensis(L) O Kuntze to corticium theae Bernard causing black rot disease." Thesis, University of North Bengal, 2002. http://hdl.handle.net/123456789/1072.

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3

Tyler, Ray, Edith DeRosa, Lee J. Clark, and Mary Olsen. "Seed Treatment to Prevent Black Root Rot." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/219773.

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The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.<br>NU-Zone (imazalil) + Nu-Flow ND (TCMTB + Chloroneb), NU-Flow ND, and Vitavax (carboxin) were evaluated as seed treatments with and without in-furrow PCNB. The following was learned: - Vitavax-treated seed got out of the ground faster than the other treatments, which brings out the possibility that NU-Flow or NU-Zone slows germination. - Stands and root development were slightly better when NUZone was present. - NU-Zone + NU-Flow ND seed treatment is not totally effective in controlling black root rot in heavily

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4

Hine, R. B., P. A. Mauk, and Tesfaye Tedla. "The Effect of Soil Temperature and Inoculum Levels of Thielaviopsis basicola on Black Root Rot of Cotton." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/204546.

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Two planting dates, March 28, and April 28 were used to study the effect of soil temperature during planting on black root rot of cotton. Also, several cotton varieties were evaluated for response to the disease under varying soil temperatures and inoculum levels.

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5

ONESTI, GIOVANNI. "Studi sulle dinamiche dell'inoculo di Guignardia bidwellii, agente causale del marciume nero della vite." Doctoral thesis, Università Cattolica del Sacro Cuore, 2016. http://hdl.handle.net/10280/10799.

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L’ascomicete Guignardia bidwellii, agente causale del marciume nero della vite, è un patogeno economicamente importante in alcuni areali viticoli. La conoscenza, disponibile sul marciume nero dell’uva, è stata recuperata dalla letteratura, analizzata e sintetizzata per sviluppare un modello meccanicistico del ciclo di vita del patogeno, guidata dalle variabili meteorologiche e dalla fenologia della vite, e basata sull'analisi dei sistemi. Il modello è stato poi valutato per la sua capacità di rappresentare il sistema reale e la sua utilità per la comprensione di epidemie di marciume nero su fo

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6

ONESTI, GIOVANNI. "Studi sulle dinamiche dell'inoculo di Guignardia bidwellii, agente causale del marciume nero della vite." Doctoral thesis, Università Cattolica del Sacro Cuore, 2016. http://hdl.handle.net/10280/10799.

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L’ascomicete Guignardia bidwellii, agente causale del marciume nero della vite, è un patogeno economicamente importante in alcuni areali viticoli. La conoscenza, disponibile sul marciume nero dell’uva, è stata recuperata dalla letteratura, analizzata e sintetizzata per sviluppare un modello meccanicistico del ciclo di vita del patogeno, guidata dalle variabili meteorologiche e dalla fenologia della vite, e basata sull'analisi dei sistemi. Il modello è stato poi valutato per la sua capacità di rappresentare il sistema reale e la sua utilità per la comprensione di epidemie di marciume nero su fo

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7

Botha, Adri. "A study on the etiology and epidemiology of black root rot of strawberries in the Western Cape." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52712.

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Thesis (MScAgric)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: Historically root diseases have been a production-limiting problem for the strawberry industry worldwide. In the Western Cape Province of South Africa the most serious root disease is black root rot, which causes losses of up to 30%, annually. The aims of this study were to investigate aspects of the etiology and epidemiology of this disease in the Western Cape, and to provide information that can be incorporated in an integrated disease management strategy. In Chapter I a summary of published information on this

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8

Chapman, M. A., and R. B. Hine. "The Effect on Yield of Cotton Due to Incidence and Severity of Black Root Rot Caused by Thielaviopsis Basicola." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/208267.

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Incidence of Black Root Rot of cotton and soil inoculum potential of the causal agent Thielaviopsis basicola were monitored throughout the season in two adjacent fields planted in mid April, 1987 in Duncan, Arizona. Mean inoculum potential in Field 1 soil was 65 cfu/g and 20 % of the seedlings were infected. In Field 2 the inoculum potential and percentage of infected plants were 225 cfu/g and 93, respectively. No cortical decay was noted after June 6 in either field. Yields were similar in both fields.

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9

Specht, Lawrence P. "Inoculum densities of Thielaviopsis basicola in tobacco fields in Virginia, and the relationship of inoculum density to the severity of black root rot and growth of tobacco." Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/49854.

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A new selective medium (TB-CEN) was developed for isolating Thielaviopsis basicola, cause of black root rot of tobacco, from soil. TB-CEN medium contains etridiazol and nystatin to inhibit the growth of undesired fungi, and unautoclaved extract from carrot to selectively enhance for the growth of T. basicola. Inoculum and/or population densities of T. basicola in five burley tobacco fields were 74-166 propagules per g of soil, and 0-12 propagules per g of soil in three other burley fields. Inoculum and/or population densities of T. basicola in 12 flue-cured and 2 sun-cured tobacco fields were

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10

Chapman, M. A., and R. B. Hine. "Suppresion of Inflection of Cotton Seedlings by Rhizoetonia Solani in the Presence of Thielaviopsis Basicola, the Causal Agent of Black Root Rot." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/208309.

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High population levels of Rhizoctonia solani in a field in Coolidge, AZ which also contained Thielaviopsis basicola failed to cause the expected infection by R. solani in untreated seeds of Gossypium hirsutum. Growth chamber experiments with autoclaved soil amended with inoculum of both R. solani, and T. basicola had a significantly lower infection rate by R. solani than did the control soil with R. solani alone.

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11

Chollak, Mark A. "Working the graveyard shift black lung disease and the struggle for compensation, 1890-1970 /." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1445035901&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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12

Nagamine, Brandy Sachiko. "Characterization of a novel gammaherpesvirus isolated from a black-tailed prairie dog (Cynomys ludovicianus)." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1798481071&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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13

Duong, Duc Hieu, Xuan Quang Ngo, Dang Giap Do, Thi Anh Hong Le, Vu Thanh Nguyen, and Nic Smol. "Effective control of neem (Azadirachta indica A. Juss) cake to plant parasitic nematodes and fungi in black pepper diseases in vitro." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-190733.

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Neem cake is a product of the cold pressing from the neem kernels to obtain neem oil. Bio-active substances from neem cake extracted solutions were evaluated for their potential to control the root knot nematodes and other pests of plants. In this study different concentrations of the solution extracted from neem cake was tested against the second stage juveniles of the plant parasitic nematode Meloidogyne spp. and four phytopathogenic fungi: Rhizoctonia solani, Sclerotium rolfsii, Collectotrichum spp. and Phytopthora capsici. Toxicity of neem cake extractions is represented by the EC50 value

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14

Duong, Duc Hieu, Xuan Quang Ngo, Dang Giap Do, Thi Anh Hong Le, Vu Thanh Nguyen, and Nic Smol. "Effective control of neem (Azadirachta indica A. Juss) cake to plant parasitic nematodes and fungi in black pepper diseases in vitro: Research article." Technische Universität Dresden, 2014. https://tud.qucosa.de/id/qucosa%3A29103.

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Neem cake is a product of the cold pressing from the neem kernels to obtain neem oil. Bio-active substances from neem cake extracted solutions were evaluated for their potential to control the root knot nematodes and other pests of plants. In this study different concentrations of the solution extracted from neem cake was tested against the second stage juveniles of the plant parasitic nematode Meloidogyne spp. and four phytopathogenic fungi: Rhizoctonia solani, Sclerotium rolfsii, Collectotrichum spp. and Phytopthora capsici. Toxicity of neem cake extractions is represented by the EC50 value

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15

Melo, JosÃ Glauber Moreira. "Diversidade genÃtica e patogenicidade de Lasiodiplodia theobromae associado ao cajueiro (Anacardium occidentale)." Universidade Federal do CearÃ, 2010. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=7095.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>O cajueiro tem uma grande importÃncia sÃcio-econÃmica e cultural para a regiÃo Nordeste, por gerar emprego para os agricultores, sendo por muitas vezes a sua Ãnica fonte de renda. Assim, as pesquisas com esta fruteira tÃm aumentado bastante nos Ãltimos anos, visando primariamente, reduzir os danos fitossanitÃrios e elevar a produtividade. As doenÃas, como nas demais espÃcies cultivadas, causam significativos danos. Dentre as doenÃas do cajueiro, a resinose e a podridÃo preta das hastes, ambas causadas pelo fungo Lasiodip

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16

Wu, Ying-Chi, and 吳瓔旂. "Multilocus sequence analysis (MLSA) of Erwinia strains from black rot disease of papaya in Taiwan." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/6wn6sf.

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碩士<br>國立中興大學<br>植物病理學系所<br>101<br>Papaya (Carica papaya) is an economically important crop in Taiwan. In recent years, a bacterial disease, black rot of papaya, seriously occurred in central and southern Taiwan. Based on physiological, biochemical and pathogenicity tests, the causal agent was identified as Erwinia sp. The 16S rDNA sequences of these Erwinia sp. (EP) strains were 97.9% similarity to Erwinia papayae. In order to clarify the taxonomic status of these EP isolates from Taiwan, multilocus sequence analysis (MLSA) and biochemical tests were used to identify the EP strains from bl

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17

Driss, Jihen Oueslati Ep. "Chestnut rots: disease incidence and molecular identification of causal agents." Master's thesis, 2018. http://hdl.handle.net/10198/20487.

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Dupla diplomação com a Université Libre de Tunis<br>Chestnut fruits are popular fruits commercialized as fresh or processed ready to be used as products. Because of its high moisture and suitable nutrient content, the chestnut kernel has the potential to support the growth of a wide spectrum of spoilage fungi. The major postharvest problems associated with stored chestnut fruits are rots, which result in major losses in fruit quality. Although the empirical knowledge determines a high level of rot in Portuguese chestnuts, there are no scientific studies on the incidence and severity of th

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18

Li’aini, Arrohmatus Syafaqoh, and 李安玲. "Application of Bacillus amyloliquefaciens to control black rot disease on cabbage caused by Xanthomonas campestris pv. campestris." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/26aqsg.

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碩士<br>國立屏東科技大學<br>生物科技系所<br>105<br>Black rot disease (BRD) caused by Xanthomonas campestris pv. campestris (Xcc) is considered the most important disease of crucifers worldwide. This destructive disease causes considerable yield losses up to 50% by premature defoliation. Various strategies have been developed to control BRD on cabbage, including the use of antagonistic microorganisms. In this study, we attend to assay the possibility of applying Bacillus amyloliquefaciens strains, PMB04 and PMB05, to control BRD on cabbage. Firstly, we assay the inhibitory effect of B. amyloliquefaciens strain

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19

Li, Hui. "Cultivar, pH and inoculum density effects on root rot of strawberry associated with Rhizoctonia spp. and Phytophthora cactorum /." 1997. https://scholarworks.umass.edu/theses/3463.

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20

Witcosky, Jeffrey John. "The root insect-- black-stain root disease association in Douglas-fir : vector relationships and implications for forest management /." 1985. http://hdl.handle.net/1957/11535.

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