Relevant bibliographies by topics / Ramularia leaf spot

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  2. Dissertations / Theses
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Academic literature on the topic 'Ramularia leaf spot'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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Journal articles on the topic "Ramularia leaf spot"

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Ascari, João Paulo, Inês Roeder Nogueira Mendes, Vanessa Costa da Silva, and Dejânia Vieira de Araújo. "Ramularia leaf spot severity and effects on cotton leaf area and yield1." Pesquisa Agropecuária Tropical 46, no. 4 (2016): 434–41. http://dx.doi.org/10.1590/1983-40632016v4642781.

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ABSTRACT Cotton monoculture favors the development of diseases such as ramularia leaf spot, which causes early defoliation and boll rotting, thus decreasing yield. This study aimed at evaluating the severity of ramularia leaf spot and its effects on cotton leaf area and yield. The experiment was conducted in a triple (4 x 3 x 2) factorial design, consisting of four cultivars (FM940GLT, FM944GL, TMG42WS and TMG43WS), three thirds of the plant (lower, middle and upper) and two management conditions (with and without fungicide application). To the variable area under the disease progress curve, t
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Dussart, Francois, and Dorota Jakubczyk. "Biosynthesis of Rubellins in Ramularia collo-cygni—Genetic Basis and Pathway Proposition." International Journal of Molecular Sciences 23, no. 7 (2022): 3475. http://dx.doi.org/10.3390/ijms23073475.

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The important disease Ramularia leaf spot of barley is caused by the fungus Ramularia collo-cygni. The disease causes yield and quality losses as a result of a decrease in photosynthesis efficiency due to the appearance of necrotic spots on the leaf surface. The development of these typical Ramularia leaf spot symptoms is thought to be linked with the release of phytotoxic secondary metabolites called rubellins in the host. However, to date, neither the biosynthetic pathways leading to the production of these metabolites nor their exact role in disease development are known. Using a combined i
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Mařík, P., Z. Šnejdar, and P. Matušinsky. "Expression of resistance to Ramularia leaf spot in winter barley cultivars grown in conditions of the Czech Republic." Czech Journal of Genetics and Plant Breeding 47, No. 1 (2011): 37–40. http://dx.doi.org/10.17221/34/2010-cjgpb.

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The fungus Ramularia collo-cygni is increasingly important as the causal agent of Ramularia leaf spot (RLS), a novel leaf spot disease of barley. The work aimed to identify gene resources suitable for developing new breeding lines of winter barley with improved resistance. During the first experimental period (2001–2005), RLS incidence was monitored in 711 cultivars and advanced breeding lines. Differences were detected in the intensity of symptomatic expression, but no material showed high resistance. During the second experimental period (2006–2009), response to natural R
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Jalli, Marja, Janne Kaseva, Björn Andersson, et al. "Yield increases due to fungicide control of leaf blotch diseases in wheat and barley as a basis for IPM decision-making in the Nordic-Baltic region." European Journal of Plant Pathology 158, no. 2 (2020): 315–33. http://dx.doi.org/10.1007/s10658-020-02075-w.

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Abstract Fungal plant diseases driven by weather factors are common in European wheat and barley crops. Among these, septoria tritici blotch (Zymoseptoria tritici), tan spot (Pyrenophora tritici-repentis), and stagonospora nodorum blotch (Parastagonospora nodorum) are common in the Nordic-Baltic region at variable incidence and severity both in spring and winter wheat fields. In spring barley, net blotch (Pyrenophora teres), scald (Rhynchosporium graminicola, syn. Rhynchosporium commune) and ramularia leaf spot (Ramularia collo-cygni) are common yield limiting foliar diseases. We analysed data
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Mäe, Andres, and Riinu Kiiker. "Challenges in Ramularia collo-cygni Control." Encyclopedia 2, no. 1 (2022): 256–63. http://dx.doi.org/10.3390/encyclopedia2010017.

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Ramularia leaf spot (RLS), caused by the fungus Ramularia collo-cygni, has recently become widespread in Europe. Succinate dehydrogenase inhibitor (SDHI) and demethylation inhibitor (DMI) fungicides are mainly applied for disease control on barley fields, but pathogen isolates with a reduced sensitivity can cause difficulties. There is an urgent need for new spring barley cultivars that are more resistant to RLS development and can inhibit R. collo-cygni epidemics.
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De Souza, Hugo Manoel, Alfredo Ricieri Dias, Gustavo De Faria Theodoro, Christian Rones Wruck de Souza Osório, and Fernando Fagner Magalhães. "Cultivar, Plant Height and Fungicide for Integrated Control of Ramularia Spot and Increased Cotton Yield." Journal of Agricultural Studies 8, no. 2 (2020): 224. http://dx.doi.org/10.5296/jas.v8i2.15871.

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Cotton is a crop with a high economic value, usually sprayed with large amounts of pesticides to control pests and diseases. Ramularia spot is a foliar disease that cause early defoliation and can compromise cotton yield; however, there is a need of information about the interaction of cultivars and plant height as a tool to improve ramularia control and increase yield. The objective of this study was to evaluate the effects of the interaction between plant height, cultivar, and fungicides applied to the severity of the leaf spot and cotton yield. The experiment was carried on during the 2014/
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Hostert, N. D., C. L. Blomquist, S. L. Thomas, D. G. Fogle, and R. M. Davis. "First Report of Ramularia carthami, Causal Agent of Ramularia Leaf Spot of Safflower, in California." Plant Disease 90, no. 9 (2006): 1260. http://dx.doi.org/10.1094/pd-90-1260c.

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Ramularia leaf spot was identified in several fields of safflower (Carthamus tinctorius) near Gridley, CA in June 2005. Numerous circular to irregularly shaped brown lesions, 3 to 10 mm in diameter, on both sides of leaves and flower bracts resulted in stunted plants and reduced seed production. In two of the fields, nearly all plants were affected, yields were severely reduced, and the crops were abandoned. Ramularia carthami Zaprom. was identified on the basis of morphology of reproductive structures on colonized leaves (1). Hyaline, thin-walled, aseptate conidiophores (2.6 to 4.3 × 28.8 to
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McGrann, GrahamR D., and NeilD Havis. "Ramularia Leaf Spot: A Newly Important Threat to Barley Production." Outlooks on Pest Management 28, no. 2 (2017): 65–69. http://dx.doi.org/10.1564/v28_apr_05.

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da Silva, Juliano Cesar, Wagner Bettiol, and Nelson Dias Suassuna. "Ramularia leaf spot: an emergent disease of cotton in Brazil." Tropical Plant Pathology 44, no. 6 (2019): 473–82. http://dx.doi.org/10.1007/s40858-019-00308-w.

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Havis, N. D., K. Gorniak, M. A. Carmona, A. N. Formento, A. G. Luque, and M. M. Scandiani. "First Molecular Detection of Ramularia Leaf Spot (Ramularia collo-cygni) in Seeds and Leaves of Barley in Argentina." Plant Disease 98, no. 2 (2014): 277. http://dx.doi.org/10.1094/pdis-04-13-0416-pdn.

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The fungus Ramularia collo-cygni B. Sutton & J. M. Waller (Rcc) was identified as the causal agent of this emerging disease on barley (Hordeum vulgare L.) based on symptoms and signs on leaves and attributes of the fungus. The common name given to the disease was “necrotic sprinkling.” This disease was found for the first time on barley in fields of Buenos Aires Province, Argentina, in 2001, with severities ranging from 60 to 100% (2). During the spring of 2012, the disease spread throughout most barley growing areas of the Pampean region, affecting almost all varieties of barley in the Bu
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Dissertations / Theses on the topic "Ramularia leaf spot"

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Dussart, François Mathieu Didier. "Genomic analysis of secondary metabolism in Ramularia collo-cygni, causative agent of Ramularia leaf spot disease of barley." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28829.

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In the past two decades a new barley threat has emerged as the disease Ramularia leaf spot (RLS) became more prevalent in temperate regions worldwide. This disease, first identified in the late 19th century, is caused by the filamentous fungus Ramularia collo-cygni (Rcc) and can cause substantial yield losses as well as reduce grain quality. RLS typically occurs late in the growing season and characteristic disease symptoms are usually seen after the crop has flowered. Expression of RLS lesions is thought to be associated with the action of fungal secondary metabolism products. The one group o
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Curvêlo, Carmen Rosa da Silva. "Processo infeccioso de Ramularia areola em algodoeiro." Universidade Federal de Viçosa, 2009. http://locus.ufv.br/handle/123456789/4496.

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Made available in DSpace on 2015-03-26T13:39:29Z (GMT). No. of bitstreams: 1 texto completo.pdf: 355166 bytes, checksum: fca33886e7049d30889ecd53a351d550 (MD5) Previous issue date: 2009-02-17<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>The infectious process of Ramularia areola, the causal agent of ramularia leaf spot, on leaves of cotton, Gossypium hirsutum L. (Malvaceae), was studied by using the scanning electron microscope. Conidia started to germinate at 12 hours after inoculation (hai) and no appressoria were observed at this time. In most cases, conidia germina
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Šilingis, Nerijus. "Fungicidų efektyvumas cukriniuose runkeliuose." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_111757-51474.

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Magistrantūros studijų baigiamojo darbo tyrimų tikslas buvo ištirti cukrinių runkelių ligotumą, nustatyti grybinių lapų ligų paplitimą ir žalingumą cukriniuose runkeliuose bei nustatyti apsaugos priemonių, mažinančių ligų plitimą efektyvumą. Lauko eksperimentas buvo atliktas 2012 m. Lietuvos agrarinių ir miškų mokslų centro (LAMMC) Rumokų bandymų stotyje. Dirvožemis sekliai glėjiškas paprastasis išplautžemis (Haplic-Epihypogleyic Luvisol – Idg8-p). Darbo objektas - cukrinių runkelių (Beta vulgaris saccharifera) grybinės lapų ligos. Darbo metodai: Cukrinių runkelių lapų ligotumo, fungicidų bio
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Zamani-Noor, Nazanin Verfasser], Andreas von [Akademischer Betreuer] Tiedemann, Petr [Akademischer Betreuer] Karlovsky, and Heiko [Akademischer Betreuer] [Becker. "Studies on Ramularia Leaf Spots on Barley - Resistance Phenotyping, Epidemiology and Pathogenicity / Nazanin Zamani-Noor. Gutachter: Petr Karlovsky ; Heiko C. Becker. Betreuer: Andreas von Tiedemann." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2013. http://d-nb.info/1044770635/34.

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Zamani-Noor, Nazanin. "Studies on Ramularia Leaf Spots on Barley - Resistance Phenotyping, Epidemiology and Pathogenicity." Doctoral thesis, 2011. http://hdl.handle.net/11858/00-1735-0000-0001-BC13-F.

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Ramularia collo cygni (Rcc), der Erreger der Sprenkelkrankheit an Gerste, gewinnt zunehmend an Bedeutung. Das pilzliche Pathogen wird den Deuteromyceten zugeordnet. Typisch für die Krankheit ist ein auffallend spätes Auftreten von Symptomen in der Vegetationsperiode. Nach Abschluss der Blüte nimmt die Befallsstärke stark zu, was sich in einer Verbräunung und Absterben der Blätter innerhalb von 12 Tagen zeigt. Klassische Untersuchungsmethoden der Rcc-Gerste-Interaktion werden kontinuierlich durch molekulare Untersuchungen zur Befallsdynamik unterstützt. So stehen seit kurzem PCR-basierte Verfa
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Balz, Torsten. "Ramularia collo-cygni an Gerste." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-AB30-0.

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Book chapters on the topic "Ramularia leaf spot"

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Havis, Neil. "Ramularia leaf spot in barley." In Achieving durable disease resistance in cereals. Burleigh Dodds Science Publishing, 2021. http://dx.doi.org/10.1201/9781003180715-25.

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Havis, Neil. "Ramularia leaf spot in barley." In Achieving durable disease resistance in cereals. Burleigh Dodds Science Publishing, 2021. http://dx.doi.org/10.19103/as.2021.0092.28.

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Ramularia leaf spot is an emerging pathogen across barley growing regions of the world. It's rise from minor to major disease has been rapid over the last twenty years. The causal pathogen, Ramularia collo-cygni is poorly understood but it has been shown to have a complex life cycle and the ability to exist on many hosts in an endophytic state. The rate of development of fungicide resistance in the fungus is also extremely fast and many of the major single site fungicides are no longer effective in many countries. With multisite fungicides having their approval or reconsidered and no consisten
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