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Resistance to Pratylenchus brachyurus in Vitis species population through multi...

Santos,Paulo Ricardo dos; Viana,Alexandre Pio; Gomes,Vicente Martins; Preisigke,Sandra da Costa; Almeida,Odimar Ferreira de; Santos,Eileen Azevedo

ABSTRACT: Genetically diverse interspecific hybrids of Vitis were selected for resistance to Pratylenchus brachyurus. Three segregating populations with 57 hybrid crosses were evaluated. The parents included Vitis romanetiiC166-043 × 07355-075, 06354-047 × Cereza and 06354-047 × Nocera, selected from the germplasm bank at the University of California, Davis, the United States. The experiment was arranged in a r...

Date: 2019   |   Origin: Oasisbr

Resistência de genótipos de araçazeiros a Meloidogyne enterolobii

Biazatti,Marlon Altoé; Souza,Ricardo Moreira de; Marinho,Cláudia Sales; Guilherme,Denilson de Oliveira; Campos,Graziella Siqueira; Gomes,Vicente Martins

RESUMO: Este trabalho teve por objetivo avaliar a resistência de genótipos de P. cattleyanum a M. enterolobii. O experimento foi conduzido em DIC, com seis tratamentos, constituídospor cinco genótipos de P. cattleyanum, pela goiabeira 'Paluma' (testemunha) e oito repetições constituídas por clones desses genótipos. A classificação quanto à resistência foi determinada de acordo com o fator de reprodução (FR), av...

Date: 2016   |   Origin: Oasisbr

Greenhouse and field assessment of different organic compounds against guava-pa...

Almeida,Alexandre Macedo; Souza,Ricardo Moreira; Gomes,Vicente Martins; Miranda,Guilherme Bessa

Guava decline is a complex disease involving Meloidogyne enterolobii and Fusarium solani and it has caused major direct losses to Brazilian growers. Although several strategies have been sought to control the nematode, the use of organic soil amendments is currently the best approach to manage this disease. To assess the best amount of meat and bone meal (MBM) to be incorporated into the soil, guava seedlings i...

Date: 2012   |   Origin: Oasisbr

Avaliação de acessos de Psidium spp. quanto à resistência a Meloidogyne enterol...

Miranda,Guilherme Bessa; Souza,Ricardo Moreira de; Gomes,Vicente Martins; Ferreira,Thiago de Freitas; Almeida,Alexandre Macedo

Quarenta e sete acessos de Psidium spp. foram avaliados em casa de vegetação quanto à resistência a M. enterolobii, visando ao desenvolvimento de porta-enxertos e cultivares resistentes. Cinco a sete mudas de cada acesso foram produzidas por propagação vegetativa ou a partir de sementes e, no estádio de quatro pares de folhas, foram submetidas à inoculação com 500 ovos desse nematoide. Cento e trinta e cinco di...

Date: 2012   |   Origin: Oasisbr

Greenhouse and field assessment of rhizobacteria to control guava decline

Almeida,Alexandre Macedo; Gomes,Vicente Martins; Souza,Ricardo Moreira

In an effort to devise a biological strategy to control guava decline, 120 rhizobacteria isolates were obtained from symptomless guava trees located in Meloidogyne enterolobii-infested orchards. Of those isolates, 44 were assessed for their potential to reduce nematode's reproduction: for each isolate, six guava stem cuttings were embedded for eight hours with bacterial suspension and transplanted. Upon develop...

Date: 2011   |   Origin: Oasisbr

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