Tolerância ao déficit hídrico em mudas de genótipos de café portadores de genes de diferentes espécies

Carvalho, Filipe Gimenez; Sera, Gustavo Hiroshi; Andreazi, Elder; Sera, Tumoru; Fonseca, Inês Cristina de Batista; Carducci, Fernando Cesar; Shigueoka, Luciana Harumi; Holderbaum, Melina Marques; Costa, Kamila Carmezini

doi:10.25186/cs.v12i2.1175

Cited by 17 publications

(19 citation statements)

References 6 publications

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“…The response to changes in soil moisture and the magnitude of expression of the genetic variability being modulated by the amount of water available in the soil for several agronomic traits of coffee plants have been reported by studies assessing other genotypes (Silva et al, 2015;Carvalho et al, 2017;Rodrigues et al, 2017;Bonomo et al, 2018;Starling et al, 2018).…”

Section: Discussionmentioning

confidence: 88%

Research Article Genetic diversity in nutritional parameters in response to drought of Coffea canephora cultivated in Rondonia state, Brazil

Starling¹,

Martins²,

Rodrigues³

et al. 2019

Genet. Mol. Res.

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Coffea canephora shows considerable variability for several agronomic traits, including nutritional efficiency. Beside the intrinsic nutritional efficiency of a genotype, the availability of water in the soil is another factor that can cause different responses, which suggests the possibility of selection of genotypes to enhance the nutritional efficiency under different scenarios, such as plantings in areas with low natural fertility or subjected to drought. We evaluated the genetic diversity of genotypes of C. canephora that compose the cultivar "BRS Ouro Preto", the first available clonal cultivar recommended for Rondonia State, based on parameters of nutritional status of the plants subjected to cultivation under conditions of abundant water supply or subjected to water deficit. To this end, the experiment was developed with two trials where the 15 genotypes of this cultivar were cultivated in a greenhouse, under conditions of abundant water supply or subjected to water deficit. The trials followed a completely randomized design, with four replications and the mineral status of the plants was evaluated based on the content of N, P, K, Ca, Mg and S of their green tissues. The genotypes ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 18 (2): gmr18300 L.C.T. Starling et al. 2presented high variability for these nutritional parameters, making it possible to identify distinct patterns and to group them according to their nutritional status. Variability was affected by drought, showing that the water supply can cause changes in patterns of nutritional status and affect the clustering of genotypes. The genotypic effect surpassed the environmental influence for most mineral parameters, resulting in a desirable scenario for a possible selection to enhance nutritional efficiency, for both irrigated and rainfed systems, within the group of genotypes that already present high yield in Rondonia state.

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Section: Discussionmentioning

confidence: 88%

Research Article Genetic diversity in nutritional parameters in response to drought of Coffea canephora cultivated in Rondonia state, Brazil

Starling¹,

Martins²,

Rodrigues³

et al. 2019

Genet. Mol. Res.

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“…According to Ngamsuk et al [ 27 ], the DPPH radical scavenging activity of coffee leaves is significantly correlated with total phenolic content. The cultivar Iapar-59 (cross between Villa Sarchi and Timor hybrid CIFC 832/2), has in its genealogy genes from Coffea canephora due to the Timor hybrid (natural interspecific cross between C. arabica and C. canephora ) [ 28 , 29 ]. C. canephora has a higher soluble solid content, caffeine and chlorogenic acid [ 30 ].…”

Section: Discussionmentioning

confidence: 99%

Chemical Composition, Production of Secondary Metabolites and Antioxidant Activity in Coffee Cultivars Susceptible and Partially Resistant to Bacterial Halo Blight

Silva

Resende

Ribeiro

et al. 2021

Plants

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Coffee production is one of the main agricultural activities in Brazil, and several coffee cultivars with disease resistance have already been developed. The secondary metabolites produced by plants are closely associated with defense strategies, and the resistance of coffee cultivars to bacterial halo blight (BHB) can be related to these compounds. Therefore, this study aims to compare a partially resistant coffee cultivar (Iapar-59) and a susceptible cultivar (Mundo Novo 376/4) to BHB (Pseudomonas syringae pv. garcae) in relation to the chemical composition and antioxidant activity of the leaf extracts. In addition, this study determined the total phenolic and flavonoid contents and phenolic profiles of the Iapar-59 leaf extracts of plants inoculated with P. syringae pv. garcae. The Iapar-59 extract showed a higher content of phenolic compounds and flavonoids than the Mundo Novo 376/4 extract. Both cultivars contained gallic, chlorogenic and caffeic acids; however, the highest contents were quantified in the Iapar-59 cultivar. The leaf extracts from the Iapar-59 cultivar exhibited higher antioxidant activity. Higher concentrations of gallic, caffeic and chlorogenic acids and the presence of vanillin were detected in the extract of cultivar Iapar-59 inoculated with P. syringae pv. garcae.

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“…and by selecting cultivars with the desired size and type of green coffee, chemical components (e.g., caffeine), and beverage cup quality (Carvalho et al, 2017;Eskes & Leroy, 2009;Medina Filho et al, 2008;Sera, 2001). Breeding programs have had a great deal of success and have produced 137 Arabica coffee cultivars registered with the Ministry of Agriculture, Livestock, and Supply (MAPA, 2021), which makes it difficult for coffee farmers to choose the best option.…”

Section: Introductionmentioning

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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Tolerância ao déficit hídrico em mudas de genótipos de café portadores de genes de diferentes espécies

Cited by 17 publications

References 6 publications

Research Article Genetic diversity in nutritional parameters in response to drought of <i>Coffea</i> <i>canephora</i> cultivated in Rondonia state, Brazil

Research Article Genetic diversity in nutritional parameters in response to drought of <i>Coffea</i> <i>canephora</i> cultivated in Rondonia state, Brazil

Chemical Composition, Production of Secondary Metabolites and Antioxidant Activity in Coffee Cultivars Susceptible and Partially Resistant to Bacterial Halo Blight

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

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