Efeitos da simulação da solarização do solo com materiais vegetais sobre o crescimento micelial de fungos fitopatogênicos habitantes do solo

Basseto, Marco Antonio; Bueno, César Júnior; Chagas, Haroldo Antunes; Rosa, Daniel Dias; Padovani, Carlos Roberto; Furtado, Edson Luiz

doi:10.1590/s0100-54052011000300006

Cited by 10 publications

(7 citation statements)

References 10 publications

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“…In this study, we used PDA culture medium and the optimum growth temperature of F. guttiforme isolates was 25°C. This corroborates the data presented by Bueno et al (2007) and Basseto et al (2011), who reported that the optimal temperature range for the growth of the three F. oxysporum strains was from 25 to 26°C.…”

Section: Isolatessupporting

confidence: 92%

Effect of temperature and photoperiod on the development of fusariosis in pineapples

Ferreira¹,

Sales²,

Araújo³

2015

Afr. J. Agric. Res.

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We examined the incidence of fusariosis in Montes Claros-MG and determined the effect of temperature and photoperiod on the development of Fusarium guttiforme. Four family production units were investigated, from which four isolates of F. guttiforme were isolated. For each isolate, two experiments were set up to assess mycelial growth for 144 h in environments with different temperatures and either a 12 h photoperiod or continuous darkness. To evaluate the development of isolates of F. guttiforme, we used a portion sub-divided randomized block design. The number of conidia produced by each isolate was counted according to the above-mentioned conditions. All production units had occurrence rates ranging from 12.2 to 64.4%. The fungal isolates showed a higher mycelial growth rate when incubated at 25°C under a 12 h photoperiod. However, the production of conidia varied depending on the temperature and on the isolate. With these overall results better understand how the spread of this fungus occurred so quickly. We may use this information to suggest management practices that reduce the incidence of pineapple fusariosis.

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Section: Isolatessupporting

confidence: 92%

Effect of temperature and photoperiod on the development of fusariosis in pineapples

Ferreira¹,

Sales²,

Araújo³

2015

Afr. J. Agric. Res.

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“…Esse fitopatógeno pode ter sido favorecido, no referido tratamento, pelos cultivos anteriores com melão, milho e feijão-caupi, todas estas hospedeiras de M. phaseolina (Kimati et al, 2005), e também pelas elevadas temperaturas do solo, que favorecem o seu desenvolvimento, já que é considerado um microrganismo tolerante a altas temperaturas (Basseto et al, 2011).…”

Section: Resultsunclassified

Comunidade microbiana do solo cultivado com pimentão nos sistemas de plantio direto e convencional associado ao manejo de plantas daninhas

et al. 2014

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RESUMO -Este trabalho teve como objetivo avaliar a comunidade microbiana do solo cultivado com pimentão (Capsicum annum) nos sistemas de plantio direto e convencional, associado às estratégias de manejo de plantas daninhas. O experimento foi conduzido no esquema de parcelas subdivididas, distribuídas no delineamento experimental em blocos casualizados. Nas parcelas, foram avaliados os dois sistemas de plantio (direto e convencional), e nas subparcelas, três estratégias de manejo de plantas daninhas (cobertura do solo com filme de polietileno, capinas regulares e tratamento sem capinas). Avaliaram-se as médias diárias das temperaturas máximas e mínimas do solo, utilizando-se sensores termopares acoplados a dataloggers, e a comunidade de bactérias, fungos e actinomicetos totais, que foram quantificados em amostras de solo coletadas aos 0, 21, 42, 63, 84 e 105 dias após o transplantio. A comunidade microbiana no solo apresentou a seguinte ordem em termos de população: bactérias > actinomicetos > fungos, com variação entre as diferentes épocas de coleta de amostras ao longo do ciclo da cultura, para todos os tratamentos, sendo influenciada pelos sistemas de preparo do solo e manejo de plantas daninhas. O revolvimento do solo no plantio convencional reduziu a população de microrganismos por ocasião do transplantio, em relação ao plantio direto. A cobertura do solo com palhada no sistema de plantio direto ou com plantas daninhas nos dois sistemas de plantio reduziu o aquecimento do solo em relação aos tratamentos com solo mantido sem cobertura, por meio de capinas, e com cobertura com filme de polietileno, proporcionando melhores condições para o desenvolvimento de fungos, bactérias e actinomicetos. Palavras-chave:Capsicum annum, cobertura morta, filme de polietileno, microrganismos no solo. ABSTRACT -

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“…The experimental design adopted in this trial was entirely random, with three treatments tested in microcosms involving two bottles connected by a silicone hose that allow air to pass from one flask to another (BASSETO et al, 2011): Treatment 1 = one bottle containing soil + cabbage, and other with six test tubes containing the fungus, all kept in a growth chamber at 40 °C (biofumigation) and 12 h of photoperiod; Treatment 2 = one bottle with distilled water, and other containing six test tubes with the fungus, all kept in a growth chamber at 40 °C and 12 h of photoperiod; and Treatment 3 = one bottle with distilled water, and other containing six test tubes with the fungus, all kept in a growth chamber at 23 °C and 12 h of photoperiod. The treatments were maintained in growth chamber for different periods: 7, 14 and 21 days.…”

Section: Effect Of Disinfection Techniques On the Fungus P Chlamydosporamentioning

confidence: 99%

“…After 4 months, the rootstock cuttings were removed from the substrate and the root system was washed in running water. Then, roots and stem were pruned above the third bud, and 18 cuttings were tied together and placed in one of the flasks of the microcosm (BASSETO et al, 2011).…”

Section: Effect Of Disinfection Techniques On the Fungus P Chlamydosporamentioning

confidence: 99%

New treatments to disinfect vine cuttings with Phaeomoniella chlamydospora and the reason for the control

et al. 2022

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Petri disease is a problem for vineyard caused mainly by the fungus Phaeomoniella chlamydospora. Contaminated seedlings are source of inoculum for the disease. Treatment to disinfect vine rootstock cuttings for seedling production is hot water treatment (HWT) by 50 °C for 30 min, but the efficiency is contested. To improve its efficacy, the study aimed to assess the combination of the following methods and the reason for the control: i) exposition of the fungus to five different temperatures in HWT bath for 30 min; ii and iii) exposition of the fungus and also plants infected with P. chlamydospora to different disinfection treatments (biofumigation = soil + cabbage at 40 °C; temperatures of 40 and 23 °C, all in microcosm), in different periods (7, 14 and 21 days), with and without additional HWT (51 °C for 30 min). The results showed that HWT with high temperatures (55-70 °C) for 30 min inactivated the fungus. Biofumigation technique at 40 °C and the temperature solely of 40 °C applied for up to 21 days and combined with HWT (51 °C for 30 min) inhibited mycelial growth and inactivated the fungus in vine plant tissues without compromising the rooting.

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Efeitos da simulação da solarização do solo com materiais vegetais sobre o crescimento micelial de fungos fitopatogênicos habitantes do solo

Cited by 10 publications

References 10 publications

Effect of temperature and photoperiod on the development of fusariosis in pineapples

Effect of temperature and photoperiod on the development of fusariosis in pineapples

Comunidade microbiana do solo cultivado com pimentão nos sistemas de plantio direto e convencional associado ao manejo de plantas daninhas

New treatments to disinfect vine cuttings with Phaeomoniella chlamydospora and the reason for the control

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