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| Registros recuperados: 14 | |
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| Gasparotto, Francielli; UEM; Vida, João Batista; UEM; Tessmann, Dauri José; UEM; Bonaldo, Solange Maria; UEM; Aguiar, Ronilda Lana; UEM; Penharbel, Marcelo Paes; UEM. |
| As sementes constituem a principal fonte de inóculo primário de Didymella bryoniae em cucurbitáceas cultivadas em ambiente protegido. Este trabalho objetivou comparar a sensibilidade de metodologias para avaliar a qualidade sanitária de sementes de meloeiro nobre quant o a D. bryoniae. Empregaram-se quatro metodologias para efetuar a análise de sanidade: teste em papel-filtro, com congelamento, para análise de sementes inteiras e, sem congelamento, para análise de sementes divididas (casca e perisperma+embrião); teste de sintomas em plântulas em substrato areia e teste de sintomas em plântulas em substrato comercial tipo Plantmax®. Para cada teste foram utilizadas 200 sementes de cada um dos híbridos Sunrise, Bonus II e Prince Hakucho. Os... |
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Palavras-chave: 5.01.00.00-9 Agronomia podridão gomosa; Cucumis melo; Patologia de sementes 5.01.02.00-1 Fitossanidade gummy stem blight; Cucumis mel; Seed pathology. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/360 |
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| Silva,Givanildo Z. da; Martins,Cibele C.; Melo,Lilian F. de; Jeromini,Tatiane S.; Panizzi,Rita de C.. |
| ABSTRACT The objective of this study was to evaluate the effect of the seed conditioning process on the sanitary quality of Panicum maximum ‘Mombasa’ seeds. The seeds were sampled before processing and after exiting the seed blower and sieves (discharge from the top and bottom sieves), first gravity separator (intermediate discharge), seed treatment equipment (dyeing the seeds of the intermediate discharge from the first separator), and second gravity separator (upper, intermediate, and lower discharge). Sanitary analysis was performed by the Blotter Test method with and without surface disinfestation of the seeds, which were incubated at 20 ± 2 °C, with a photoperiod of 12 h, for 7 d. The conditioning process increased the incidence of Fusarium sp. in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seed pathology; Processing; Seed sanitation; Panicum maximum ‘Mombasa’. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000200234 |
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| Carvalho,Daniel Diego Costa; Mello,Sueli Corrêa Marques de; Lobo Júnior,Murillo; Geraldine,Alaerson Maia. |
| The objective of this work was to evaluate isolates of Trichoderma harzianum regarding biocontrol of common bean seed-borne pathogens, plant growth promotion, and rhizosphere competence. Five isolates of T. harzianum were evaluated and compared with commercial isolate (Ecotrich), Carboxin+Thiram, and an absolute control. Bean seeds of the cultivar Jalo Precoce, contaminated with Aspergillus, Cladosporium, and Sclerotinia sclerotiorum, were microbiolized with antagonists, and seed health tests were carried out. Isolates were evaluated on autoclaved substrate and in field conditions. Ten days after sowing (DAS), plant length was measured. To test rhizosphere competence, isolates were applied in boxes containing autoclaved washed sand, and root colonization... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Sclerotinia sclerotiorum; Biological control; Bioprospection; Seed pathology. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000800006 |
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| Schultz, Vanessa Sperandio; Santos, Álvaro Figueredo dos; Medeiros, Antonio Carlos de Souza. |
| The aim of this research was to identify fungi associated with “pau-cigarra” seeds (Senna multijuga). Evaluation was carried out in nine lots composed of seeds collected from mother trees at Atlantic Rain Forest located in Antonina, Morretes and Guaraqueçaba municipalities, Paraná state, Brazil. Sanitary analysis was carried out by adopting blotter test and agar plate test. Morphological characteristics were used for fungi identification. It was observed higher fungi frequency contaminating seeds over filter paper (blotter test) compared with agar plate test. Helminthosporium sp., Alternaria sp., Ulocladium sp., Pestalotia sp., Penicillium sp., Trichoderma sp., Chaetomium sp. and Monilia sp. were the most important genus found associated with S. multijuga... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seed pathology; Fungi; Tree seeds Patologia de sementes; Fungos; Sementes Florestais. |
| Ano: 2003 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1613 |
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| Melo,Lilian F.; Silva,Givanildo Z. da; Panizzi,Rita C.; Martins,Cibele C.. |
| ABSTRACT The aim of this study was to evaluate the sanitary quality of seeds of Panicum maximum cv. ‘Tanzânia’, following the several phases of the seed processing process. Seeds were sampled before processing and after leaving the air and screen machine (upper and intermediary screens and bottom); first gravity table (drift, upper and intermediate spouts); second gravity table (upper, intermediate, and lower spouts), and treating machine for dyeing the seeds. The sanitary analyses were conducted according to the filter paper method, with and without superficial disinfestation of the seeds, which were incubated at a temperature of 20 ± 2 °C with photoperiod of 12 h for seven days. Some seed processing steps may reduce the incidence of seeds of P. maximum... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Processing; Seed pathology; Health. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001000715 |
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| Siqueira,Carolina da Silva; Barrocas,Ellen Noly; Machado,José da Cruz; Corrêa,Carla Lima. |
| ABSTRACT tenocarpella maydis is one of the main fungi associated with maize seeds, being a causative agent of stalk and ear rot, a disease which causes considerable losses for crop-producing regions in Brazil. The organism is considered to be a pest, subject to sanitary standardisation in current programs of seed certification in the country. The aim of this study was to evaluate the transmission rate of the fungus from infected maize seeds. Seeds were inoculated with two isolates using a method of physiological conditioning, in which the seeds are kept in contact with colonies of the fungus for 24 (P1), 48 (P2), 72 (P3) and 96 (P4) hours. Two cultivars were used, one susceptible (C1) and one moderately resistant (C2), and the trial carried out at two... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phytopathology; Seed pathology; Water restriction; Stalk and ear rot; Fungus. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000200393 |
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| Galli,Juliana A; Fessel,Simone A; Panizzi,Rita C. |
| Pathogens in maize (Zea mays) seeds cause serious problems, such as the loss of their capacity to germinative. The objectives of this study were to identify the optimal period for infection of maize seeds on agar colonized by Fusarium graminearum, when incubated for 4, 8, 16 and 32 h, and to evaluate the effect of the fungus on the germination and vigor of seeds with different infection levels. After the respective incubation periods, the seeds were removed from the culture medium and submitted to the blotter test for 3 min with and without superficial disinfection with 1% solution of sodium hypochlorite. Once the optimal period for seed incubation was identified, seeds from the same sample were again placed on the colonized agar for infection. Germination... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Seed pathology. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000500002 |
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| Registros recuperados: 14 | |
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