IPR 99 - Dwarf arabica coffee cultivar resistant to coffee ringspot virus

Sera, Tumoru; Sera, Gustavo Hiroshi; Fazuoli, Luiz Carlos; Bettencourt, A. J.

doi:10.1590/s1984-70332013000100011

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…These types of resistance are important in a cultivar because they reduce production losses and costs due to a lower need for agrochemicals. IPR 99 has outstanding cup quality (Sera, Sera, Fazuoli, & Bettencourt, 2013), which can increase revenue by allowing coffee to be sold at higher prices.…”

Section: High Yields In the Dense Planting Systemmentioning

confidence: 99%

Arabica coffee yields and profitability improved by reducing the spacing within the rows

Pereira

Sera

et al. 2022

Agronomy Journal

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Plant spacing influences the yield of Arabica coffee (Coffea arabica L.) cultivars and affects profitability; however, there are few studies on it. Thus, the objective of this study was to evaluate the yield and economic performance of Arabica coffee cultivars at different plant spacings. The experiment, conducted in Mandaguari, Paraná, Brazil, used a randomized block design with three replicates of seven plants in a split‐plot scheme. The treatments were eight cultivars (IPR 98, IPR 99, IPR 100, IPR 102, IPR 103, IPR 106, IPR 107, and Mundo Novo IAC 376‐4) at 2.75‐m inter‐rows and four plant spacings within the rows (0.45, 0.60, 0.75, and 0.90 m). The experiment was conducted between 2016 and 2020. Revenue, cost, and profit indicators were considered in the economic analysis. In general, the yields of the cultivars at closer spacings of 0.45 and 0.60 m were higher than at wider spacings of 0.75 and 0.90 m. Different plant spacing influenced the yields of IPR 98, IPR 102, and IPR 103 cultivars. High yields (>90 green coffee 60‐kg bags ha–1) were achieved with IPR 98, IPR 99, IPR 102, and IPR 103 cultivars, particularly IPR 98, which yielded 7,002.60 kg ha–1 at a spacing of 0.45 m. At 0.45‐m spacing, the IPR 98 cultivar presented the best economic result, with a positive impact on profitability.

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Section: High Yields In the Dense Planting Systemmentioning

confidence: 99%

Arabica coffee yields and profitability improved by reducing the spacing within the rows

Pereira

Sera

et al. 2022

Agronomy Journal

Self Cite

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Detection and survey of coffee ringspot virus in Brazil

et al. 2015

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Coffee ringspot virus (CoRSV) a member of the proposed genus "Dichorhavirus", was surveyed on commercial and research farms spanning an area responsible for the majority of Coffea arabica production in Brazil. Virus-infected plants were found at one hundred percent of locations (n = 45) sampled. All cultivars, regardless of cherry color, were found to serve as hosts, suggesting that there is limited resistance in commercially employed germplasm. Reverse transcription PCR analysis revealed that the virus is contained within symptomatic lesions, with little systemic spread throughout leaves. Phylogenetic analysis based on the ORF1 (nucleocapsid) gene identified a strong geo-spatial relationship among isolates, which clustered into three clades. Despite low genetic diversity among isolates, variation in symptom expression was observed in the experimental host Chenopodium quinoa. Our analyses support the hypothesis that the spread of CoRSV is constrained by the clonal expansion of thelytokous populations of Brevipalpus phoenicis. The widespread occurrence of this virus suggests that it is much more prevalent than previously thought.

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