Efeitos da temperatura sobre a atividade de fungos no controle biológico de Meloidogyne javanica E M. incognita raça 3

Alves, Fábio Ramos; Campos, Vicente Paulo

doi:10.1590/s1413-70542003000100011

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…According to Alves and Campos (2001), when the soil temperature is around 29 ºC, there is a signi cant increase in the reproduction of Meloidogyne spp. and in the formation of galls compared to plants kept at temperatures varying between 23 ºC and 25 ºC due to the greater penetration of juveniles in the roots of these plants.…”

Section: Resultsmentioning

confidence: 99%

Quantification of Damage and Yield Losses and Management of Meloidogyne Exigua in Arabica Coffee Treated With Biofertilizers, Biopesticides and Chemical Nematicide

Figueiredo

Barbosa

Moraes

et al. 2023

Preprint

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The objective of this work was to verify if biofertilizers, biopesticides and chemical nematicide reduced the population of M. exigua in coffee in 2019 and 2020. The treatments were: T1: Organic biofertilizer containing Bacillus subtilis, B. licheniformis and Lactobacillus sp. (Bio1); T2: Bio1 + Bio1; T3: Bio1 + 100% organic biofertilizer rich in organic matter, humic and fulvic acids (Bio2); T3: Bio1 + Bio2; T4: biopesticide based on B. subtilis and B. licheniformis (Bio3); T5: biopesticide based on Trichoderma harzianum (Bio4); T6: Fluensulfone; T7: Bio1 + Fluensulfone and T8: Control. The experiment was carried out in a field of arabica coffee cv. Catuaí in a randomized block design in an 8x6 factorial scheme (8 treatments x 6 collection periods) with four blocks. The evaluations were carried out at 0, 120, 180, 240, 360 and 420 days after application of the products (DAA). Yield losses and relative efficiency (RE) of the treatments was calculated. The treatment that most reduced the population of M. exigua in the roots was T7 (50.91) and in the soil was T6. The RE ranged from 34.77–45.04%. At 180 and 420 DAA we observed reduction of the nematode in the roots. The highest yields in 2019 were observed in plants treated with T1 and T5, whereas in 2020 it was in plants that received T2, T6 and T7. In 2019, except for T6, all treatments resulted in increased productivity. In 2020, the treatments that brought the most profit to the coffee grower were T6 and T7.

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Section: Resultsmentioning

confidence: 99%

Quantification of Damage and Yield Losses and Management of Meloidogyne Exigua in Arabica Coffee Treated With Biofertilizers, Biopesticides and Chemical Nematicide

Figueiredo

Barbosa

Moraes

et al. 2023

Preprint

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“…Characterization of the level of plant germplasm resistance to RKN populations or isolates provides a broad view of the possible response in field conditions since the result of the plant–nematode interaction is dependent on the genetic background. Some studies have found that certain lettuce cultivars are resistant to M. incognita and M. javanica [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ] populations and/or races, as well as bean cultivars [ 23 , 24 , 25 , 26 , 27 ]. So, in this study, some experiments were conducted to determine the level of resistance of three lettuce and five bean cultivars against eleven RKN isolates from Spain in pot experiments, and against an M. incognita isolate in a plastic greenhouse.…”

Section: Introductionmentioning

confidence: 99%

Host Suitability of Lettuce and Bean Germplasm for Meloidogyne incognita and M. javanica Isolates from Spain

Giné,

Sanz-Prieto,

Gomes

et al. 2023

Plants

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Meloidogyne spp. are an important threat to horticulture and cause substantial yield losses. Plant resistance is an alternative control method for chemical nematicides. This study highlights the host suitability of the lettuces cultivars Grand Rapids and Salinas 88 and the beans cultivars Aporé, Cornell 49242, Macarrão Atibaia and Ouro Negro to four Meloidogyne incognita and seven M. javanica isolates from Spain in a pot experiment. Moreover, the response of these cultivars to increasing M. incognita densities (Pi) was assessed in a plastic greenhouse. The lettuce cultivar Regina 71 and the bean cultivar Bolinha were included as susceptible standards for comparison. It was found that Grand Rapids and Salinas 88 lettuces were resistant to the most nematode isolates in the pot experiment but were classified as slightly and moderately resistant, respectively, in the plastic greenhouse at increasing Pi. Regarding the beans, Aporé was resistant to the majority of the Meloidogyne isolates whereas Macarrão Atibaia and Ouro Negro were slightly resistant and Cornell 49242 was susceptible in the pot experiment. In the plastic greenhouse, Aporé was the only cultivar able to effectively suppress the nematode reproduction irrespective of Pi, while Ouro Negro became less resistant as Pi increased. These results play an important role in enhancing the effective and ecofriendly Meloidogyne management strategies.

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Influência da Temperatura e Radiação Ultravioleta no Desenvolvimento de Isolados de Trichoderma spp.

Oliveira

Moraes

Silva

et al. 2019

Rev. bras. meteorol.

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Resumo As mudanças climáticas são uma ameaça para o setor agrícola. O objetivo do estudo foi avaliar a influência da temperatura e radiação ultravioleta (UV) no desenvolvimento in vitro de isolados de Trichoderma spp. Os experimentos foram conduzidos no Laboratório de Patologia Pós-Colheita, da Embrapa Agroindústria Tropical (Fortaleza - CE). Avaliou-se a influência da temperatura de incubação (30, 35 e 40 °C) no crescimento micelial, bem como na esporulação (conídios.mL-1) e na germinação (%) dos conídios dos isolados de Trichoderma spp. (T. asperellum - SF 04, Quality WG®; T. harzianum - IBLF 006, Ecotrich WP®; e T. harzianum ESALQ - 1306, Trichodermil 1306). Para a avaliação da influência da UV, as placas de Petri contendo os isolados fúngicos foram expostas à luz em diferentes intervalos de tempo (0, 2, 4, 6 e 8 minutos) e obteve-se a germinação relativa. O isolado mais sensível à temperatura foi T. asperellum (SF 04), no qual, a temperatura de 35 °C apresentou menor área de crescimento micelial e menor germinação relativa (38,4%). O isolado T. harzianum (ESALQ 1306) apresentou a menor porcentagem de conídios germinados a 30 °C (63%), porém, teve o maior número a 35 °C (100%). A radiação UV diminuiu a germinação dos conídios e os isolados que apresentaram maior germinação relativa ao final do período de exposição foi T. asperellum (SF 04) e T. harzianum (ESALQ 1306). Estes resultados podem demonstrar uma maior capacidade de adaptação do isolado T. harzianum (ESALQ 1306) às condições extremas de temperatura.

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Efeitos da temperatura sobre a atividade de fungos no controle biológico de Meloidogyne javanica E M. incognita raça 3

Cited by 3 publications

References 5 publications

Quantification of Damage and Yield Losses and Management of Meloidogyne Exigua in Arabica Coffee Treated With Biofertilizers, Biopesticides and Chemical Nematicide

Quantification of Damage and Yield Losses and Management of Meloidogyne Exigua in Arabica Coffee Treated With Biofertilizers, Biopesticides and Chemical Nematicide

Host Suitability of Lettuce and Bean Germplasm for Meloidogyne incognita and M. javanica Isolates from Spain

Influência da Temperatura e Radiação Ultravioleta no Desenvolvimento de Isolados de Trichoderma spp.

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