Field Rot
Mostrando 1-12 de 45 artigos, teses e dissertações.
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1. Combining abilities analysis for ear rot resistance in popcorn hybrids development
ABSTRACT Ear rot caused by fungi of genus Fusarium (FER) is one of the potentially harmful diseases to grain quality in maize. Given the capacity to produce mycotoxins, FER presents a risk to food safety. This study sought to identify parents and indicate hybrids of popcorn with a higher level of resistance to the incidence and severity of FER. Hybrids were
Rev. Ceres. Publicado em: 2021-02
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2. Fungicide performance on Fusarium meridionale control, grain yield and grain damage in maize
RESUMO A podridão da espiga de giberela (PEG) do milho causada pelo complexo de espécies de Fusarium graminearum é uma doença destrutiva no sul do Brasil e no mundo. Cinco experimentos de campo foram conduzidos para determinar a eficácia de fungicidas, produtividade e qualidade de grãos (estudo I) e resposta do aumento de doses (estudo II) no controle
Summa phytopathol.. Publicado em: 14/10/2019
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3. Incidence of stalk rots in corn hybrids influenced by sowing time and nitrogen rates
ABSTRACT Stalk rots compromise the translocation of water and nutrients, affecting grain filling. This study aimed to quantify the incidence of stalk rots in corn hybrids depending on sowing time and nitrogen topdressing rate, and to assess any correlation with grain yield. The experiment was conducted under field conditions in Atalanta, Santa Catarina state
Bragantia. Publicado em: 08/08/2019
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4. Yield losses in off-season corn crop due to stalk rot disease
Resumo: O objetivo deste trabalho foi avaliar as perdas causadas pelas podridões da base do colmo em híbridos de milho (Zea mays), bem como identificar os principais patógenos causadores da doença, durante a safrinha, no Estado do Tocantins, Brasil. Foram realizados dois ensaios, um com cinco híbridos, em 2015, e outro com quatro, em 2016. Espigas de pl
Pesq. agropec. bras.. Publicado em: 16/05/2019
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5. WEEDS AS POTENTIAL HOSTS FOR FUNGAL ROOT PATHOGENS OF WATERMELON
RESUMO Considerável número de doenças que acometem a melancia (Citrullus lanatus) são causadas por patógenos habitantes do solo no Brasil e no mundo. O objetivo do presente trabalho foi identificar e quantificar a frequência de fungos fitopatógenos associados a "podridão de raízes e declínio de ramas" em melancia, presentes nas raízes de plantas d
Rev. Caatinga. Publicado em: 09/05/2019
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6. Systemic resistance induction in ‘Ortanique’ tangor
Resumo Este estudo objetivou avaliar a qualidade do tangor ‘Ortanique’ na pós-colheita e no armazenamento refrigerado após aplicação de indutores de resistência na pré-colheita, nas safras de 2015 e 2016. O delineamento experimental a campo foi em blocos completos casualizados, em esquema unifatorial. O fator de tratamento foi composto pelos indut
Rev. Bras. Frutic.. Publicado em: 25/03/2019
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7. Methodologies for selecting cassava with resistance to dry and black root rot under controlled conditions
ABSTRACT Cassava root rot diseases such as dry and black root rot are listed among the major threats, since its affect the main product (tuberous roots), causing a progressive decline in yield and affecting subsequent crop cycles, being the use of resistant varieties the most reliable control measure on field level. The objective of this study was to identif
Bragantia. Publicado em: 02/08/2018
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8. The improvement of competitive saprophytic capabilities of Trichoderma species through the use of chemical mutagens
Abstract The antagonistic potential of Trichoderma strains was assayed by studying the effect of their culture filtrate on the radial growth of Sclerotium rolfsii, the causal agent of chickpea collar rot. Trichoderma harzianum-1432 (42.2%) and Trichoderma atroviride (40.3%) were found to be strong antagonists. To enhance their antagonistic potential, mutagen
Braz. J. Microbiol.. Publicado em: 2016-03
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9. Additional species of Aspergillus causing bole rot disease in Agave sisalana
The production of sisal in Bahia, Brazil, has been declining due to the occurrence of a disease know as bole rot. Aspergillus niger was regarded as the only causal agent. In this study A. brasiliensis and A. tubingensis, in addition to Aspergillus niger, identified on the basis of morphological and molecular analyses, were shown to cause bole rot of sisal. T
Trop. plant pathol.. Publicado em: 2014-08
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10. Biology of Gaeumannomyces graminis var. graminis isolates from rice and grasses and epidemiological aspects of crown sheath rot of rice
A collection of Gaeumannomyces graminis var. graminis isolates obtained from symptomatic rice and grass plants in central and northern Brazil were studied in regard to pathogenicity on rice and cultural characteristics. For all isolates, only one type of lobed hyphopodia was observed both in the field and artificially inoculated plants. Perithecia were forme
Trop. plant pathol.. Publicado em: 2013-12
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11. Fungi and bacteria associated with post-harvest rot of ginger rhizomes in Espírito Santo, Brazil
The objective of this study was to identify fungi and bacteria associated with the post-harvest rot of ginger rhizomes (Zingiber officinale Roscoe) in the Serrana region of Espírito Santo, Brazil. Rhizomes with symptoms of rot were sampled in the packing-house and in the field soon after harvest. In the packing-house, we report positive pathogenicity tests
Trop. plant pathol.. Publicado em: 2013-06
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12. Temporal analysis of charcoal root rot in forest nurseries under different pathogen inoculum densities and soil moisture content
The progress of charcoal root rot (CRR) disease in Pinus radiata seedlings caused by Macrophomina phaseolina was evaluated in greenhouse and field trials. In one greenhouse trial P. radiata was sown in a sandy soil with pathogen inoculum densities (ID) ranging from 25 to 1000 cfu.g-1. After two months, the seedlings were established under three soil moisture
Trop. plant pathol.. Publicado em: 14/05/2013