IAC OL 5 - New high oleic runner peanut cultivar

Godoy, Ignácio José de; Santos, João Francisco dos; Michelotto, Marcos Doniseti; Moraes, Andrea Rocha Almeida de; Bolonhezi, Denizart; Freitas, Rogério Soares de; Carvalho, Cássia Regina Limonta; Finoto, Everton Luís; Martins, Antonio Lucio Melo

doi:10.1590/1984-70332017v17n3c45

Cited by 20 publications

(16 citation statements)

References 2 publications

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“…Considering the increased incidence of plants with these symptoms, Camelo-García et al (2014) identified Groundnut ringspot tospovirus (GRSV) in peanut-producing crops in Itápolis. Godoy et al (2017) also reported that peanut plants in the São Paulo State were infected, but in moderate intensity, by viruses of the Orthotospovirus group, especially TSWV and GRSV. Souza-Dias et al (2005) and Andrade et al (2005) reported the occurrence of Tomato chlorotic spot tospovirus (TCSV) in peanuts in the São Paulo State, while Reis et al (2015) obtained complete sequences of GRSV genomes and Peanut mottle virus (PeMoV) in samples from the São Paulo State.…”

Section: Introductionmentioning

confidence: 95%

Losses caused by Groundnut ringspot tospovirus in peanut crop in the State of São Paulo

Michelotto

Carrega

Lamana

et al. 2019

SCA

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An increased incidence and severity of Orthotospovirus species has been observed in the peanut crop. The typical symptoms of the virus, usually known as ringspot in peanut and spotted wilt in other crops, include mosaic, chlorotic ring-shaped spots, necrosis, and plant stunting. This study aimed to verify the occurrence of this virus in peanut growing areas in the São Paulo State, Brazil, identify the predominant virus species, and determine losses resulting from the presence of this virus. Surveys were carried out in four peanut commercial areas sown in the municipalities of Santa Adélia and Cândido Rodrigues in the 2014/2015 season using the cultivar Granoleico. The following parameters were evaluated: plant stand, number of plants with symptoms, and severity of these symptoms through a scoring scale of visual symptoms. The results showed that the predominant virus species is Groundnut ringspot tospovirus (GRSV). Also, the lower the stand is, the higher the percentage of plants with virus symptoms. The mean incidence of GRSV in commercial peanut areas is 40%, with mean losses estimated at 38% when GRSV is present and 64% when there is the presence of virus and reduction in plant density. Michelotto, M. D. et al. notas de sintomas visuais. Pelos resultados obtidos, constatou-se que a espécie de vírus predominante é Groundnut ringspot tospovirus (GRSV). Conclui-se que quanto menor o estande maior a percentagem de plantas com sintomas da virose. A incidência do GRSV nas áreas comerciais de amendoim é em média de 40% sendo as perdas médias estimadas em 38% quando há a presença do GRSV e em 64%, quando há a presença do vírus e a redução na densidade de plantas. Palavras-chave: Arachis hypogaea L. Incidência. Produtividade. Severidade. Tospovirus.

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Section: Introductionmentioning

confidence: 95%

Losses caused by Groundnut ringspot tospovirus in peanut crop in the State of São Paulo

Michelotto

Carrega

Lamana

et al. 2019

SCA

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“…In the beginning of 2000s, the implementation of peanut cultivars of the runner type, along with good agricultural and post-harvest practices and mechanization, resulted in continuous production increases (12% per year) (Martins 2018). In the cultivars released since 2009, one of the main improvements is a higher oleic/linoleic acid ratio, which extends the shelf-life and quality (Godoy et al 2017). The better quality of the exceeding domestic production was important to meet the quality standards of the foreign market.…”

Section: Introductionmentioning

confidence: 99%

“…'BRS 421' and 'BRS 423' produce high yields, but are moderately susceptible to leaf spot, requiring a good foliar disease management. Both cultivars are partially resistant to spotted wilt, a disease caused by Orthotospovirus transmitted by thrips, which has regularly caused epidemics at some locations in western São Paulo in the last five years (Camelo-Garcia et al 2014, Godoy et al 2017.…”

Section: Introductionmentioning

confidence: 99%

‘BRS 421’ and ‘BRS 423’: high oleic peanut cultivars for production in Brazil

Suassuna

Medeiros

et al. 2020

Crop Breed. Appl. Biotechnol.

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“…Deighton], early leaf spot (caused by Cercospora arachidicola Hori), which according to are considered the main diseases of peanut and can cause yield losses of 10% to 70% (Clevenger et al, 2018: Ramesh andZacharia, 2017). Also, some species of thrips are vectors of viruses such as Tomato spotted wilt orthotospovirus (TSWV) and Groundnut ringspot orthotospovirus (GRSV), recently reported by Godoy et al (2017) and Camelo-García et al (2014) causing damage in areas of peanut production in Brazil. To date, there are no reports of E. flavens as virus transmitter.…”

Section: Introductionmentioning

confidence: 99%

Control of thrips (Enneothrips flavens Moulton.) with synthetic and biological insecticides in different peanut genotypes

Michelotto¹,

Carrega

Pirotta³

et al. 2019

Aust J Crop Sci

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In peanut, pests are controlled by application of insecticides throughout the crop cycle, boosting production costs. This study compared the control of thrips (Enneotrhips flavens Moulton) in 10 peanut genotypes by biological and synthetic insecticides in the field in tropical area in Southeastern Brazil (21°13’29.9’’S 48°54’33.0’’W). The experiment was arranged in a randomized block, 10 x 3 factorial design with three replications. The first factor corresponded to 10 peanut genotypes and the second to different insecticides (synthetic, biological and control). The plants were evaluated 36, 44, 51, 59, 65, 72, and 79 days after sowing to determine the number of thrips individuals and the damage on leaflets caused by E. flavens. The plant height (cm), branch length (cm) and pod yield (kg ha-1) were also determined. The data were subjected to analysis of variance and averages compared by Tukey’s test. In prior evaluation carried out before the start of the applications of insecticides (25 DAS), natural infestation of thrips was observed in all genotypes. The genetic variability of lines L. 386 and L. 314 and cultivar IAC 113 was not significant, whereas yield difference was not observed among treatments of insecticides and control, showing tolerance to E. flavens. The synthetic insecticide Engeo PlenoTM showed of 39% higher efficiency (as average) for controlling thrips in peanut. The insecticides Beauveria bassiana (Bals.) (AUIN®) and Metarhizium anisopliae (Metch.) (GR-INN®) have potential to control E. flavens in peanut, but further studies are needed to better define the application date and products doses.

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IAC OL 5 - New high oleic runner peanut cultivar

Cited by 20 publications

References 2 publications

Losses caused by Groundnut ringspot tospovirus in peanut crop in the State of São Paulo

Losses caused by Groundnut ringspot tospovirus in peanut crop in the State of São Paulo

‘BRS 421’ and ‘BRS 423’: high oleic peanut cultivars for production in Brazil

Control of thrips (Enneothrips flavens Moulton.) with synthetic and biological insecticides in different peanut genotypes

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