Alcides Carvalho and the selection of Catuaí cultivar: interpreting the past and drawing lessons for the future

Filho, Oliveiro Guerreiro; Ramalho, Magno Antônio Patto; Andrade, Vinícius Teixeira

doi:10.1590/1984-70332018v18n4p69

Cited by 9 publications

(9 citation statements)

References 10 publications

(11 reference statements)

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“…Coffee trees have a long reproductive cycle, with fluctuations in production over time (biennial), and differences in precocity and productive longevity [ 12 ]. For this reason, accurate, efficient, and informative statistical methods, such as the residual maximum likelihood/best linear unbiased prediction (REML/BLUP) procedure, have been recommended for the genetic analysis of coffee trees [ 13 , 14 ], considering phenotypic [ 14 – 21 ] and genomic [ 22 – 26 ] data.…”

Section: Methodsmentioning

confidence: 99%

Designing the best breeding strategy for Coffea canephora: Genetic evaluation of pure and hybrid individuals aiming to select for productivity and disease resistance traits

et al. 2021

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Breeding programs of the species Coffea canephora rely heavily on the significant genetic variability between and within its two varietal groups (conilon and robusta). The use of hybrid families and individuals has been less common. The objectives of this study were to evaluate parents and families from the populations of conilon, robusta, and its hybrids and to define the best breeding and selection strategies for productivity and disease resistance traits. As such, 71 conilon clones, 56 robusta clones, and 20 hybrid families were evaluated over several years for the following traits: vegetative vigor, incidence of rust and cercosporiosis, fruit ripening time, fruit size, plant height, canopy diameter, and yield per plant. Components of variance and genetic parameters were estimated via residual maximum likelihood (REML) and genotypic values were predicted via best linear unbiased prediction (BLUP). Genetic variability among parents (clones) and hybrid families was detected for most of the evaluated traits. The Mulamba-Rank index suggests potential gains up to 17% for the genotypic aggregate of traits in the hybrid population. An intrapopulation recurrent selection within the hybrid population would be the best breeding strategy because the genetic variability, narrow and broad senses heritabilities and selective accuracies for important traits were maximized in the crossed population. Besides, such strategy is simple, low cost and quicker than the concurrent reciprocal recurrent selection in the two parental populations, and this maximizes the genetic gain for unit of time.

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Section: Methodsmentioning

confidence: 99%

Designing the best breeding strategy for Coffea canephora: Genetic evaluation of pure and hybrid individuals aiming to select for productivity and disease resistance traits

et al. 2021

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“…To compare the mean final score of the different accessions in the three harvests, the mean of the control common to all experiments was used with the estimator ±iz = Yiz -(Tz -T), where ±iz is the adjusted final mean score of accession i at harvest z, Yiz is the mean final score of accession i at harvest z, Tz is the mean yield of the control at harvest z, and T is the overall final score of the controls in all experiments (Guerreiro Filho et al 2018). The accessions MG0224 Pacamara and MG0233 Obatã Amarelo were used as controls in the three harvests.…”

Section: Methodsmentioning

confidence: 99%

Selection Strategy For The Beverage Sensory Characterization In A Large Arabica Coffee Germplasm Bank

Nadaleti¹,

Abrahão²,

Andrade³

et al. 2021

Preprint

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This study proposes a selection strategy to be applied to a large number of coffee accessions, which can be useful when exploring many genotypes in breeding programs for beverage quality. Over three consecutive years, 270 Arabica coffee accessions from the Germplasm Bank of Minas Gerais, Brazil, were sensorially characterized. At the end of this period, the 20 genotypes with the greatest potential for specialty coffee production were selected, which were subjected to a second sensory characterization. Additionally, we determined the genetic correlations between the attributes that make up the final beverage score. We did not identify an attribute that was more important than the others in the organoleptic performance of the studied accessions. Through the proposed method, we identified genetic variation in our original population and selected five accessions with beverage quality considered excellent according to the SCA classification. These accessions were planted in field conditions of highly specialized farms to study their interaction with the cultivation environment and to promote the increase in production of such coffees. Additionally, the five selected accessions are being used in crosses with elite cultivars create new segregating populations. We conclude that estimation of the heritable variation of each accession, the use over the years of common check cultivars with known performance, and extremely care of experimental precision in the entire processes warrant fair comparisons.

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“…Iapar 59 is originated from the cross between the cultivar Villa Sarchi CIFC 971/10 and hybrid of Timor CIFC 832/2, representing C. canephora introgression by spontaneous specific cross with C. arabica (Anthony et al, 2002), while Catuaí 99 is a highproductive C. arabica cultivar with high cup quality (Pérez-Molina et al, 2021). The first 'Catuaí' was selected in 1949, with the hardiness, vegetative vigor, and yield potential of 'Mundo Novo' and small plant size and compact architecture of 'Caturra' (Guerreiro-Filho et al, 2018).…”

Section: Plant Materials and Experimental Conditionsmentioning

confidence: 99%

“…Arabica and Robusta coffees are unusual among major crop plants, analyzing the short period over which domestication occurred, and the level of their domestication, i.e., genetic distance from wild to cultivated types is short, except in the cases of interspecies hybrids (Leroy et al, 2006). In Brazil, the plant breeding of C. arabica toward high-productive genotypes started in the 1930s (Guerreiro-Filho et al, 2018). However, berries of wild genotypes of both coffee species can be harvested and processed to produce coffee with high chemical (Rakocevic et al, 2023) and organoleptic (Geeraert et al, 2019) qualities, which are similar or even indistinguishable from cultivated and domesticated types (Davis et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Drought responses in Coffea arabica as affected by genotype and phenophase. I – leaf distribution and branching

Rakocevic,

Matsunaga,

Pazianotto

et al. 2024

Ex. Agric.

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Summary In Coffea arabica, there is a small genetic distance between wild and bred genotypes. However, coffee genotypes express differential acclimation to multiple drought cycles, allowing them to successfully deal with water-limiting conditions. We hypothesized that bred coffee cultivars have a plant structure less sensitive to drought than wild genotypes. Plant and leaf architecture were analyzed over the coffee strata of two cultivars (Iapar 59 and Catuaí 99) and two wild Ethiopia accessions (‘E083’ and ‘E027’) grown under rainfed conditions and irrigation. During two consecutive productive years, evaluations were taken at leaf and berry expansion (BE1 and BE2) and harvest (BH1 and BH2) phenophases. The plant canopy was divided into up to four strata of 40 cm of thickness. Topological and geometric coding of coffee trees was performed in three botanical scales – metamers, branches, and plants in multiscale tree graphs (MTGs), following the VPlants modeling platform. Leaf and branch area per plant increased with tree structure development, being always significantly higher in irrigated than in rainfed plants over all phenophases. The individual leaf area was the least sensitive to water regime in Catuaí 99, while the 2nd order axis elevation – angle in relation to horizontal plane, ranging from 0° to 90° – of bred cultivars was less sensitive to drought than in ‘E083’. This finding partially corroborated our hypothesis that orchestrated reprograming of leaf/branch responses over the vertical plant profile were less sensitive to water availability in cultivars than in wild accessions. Leaves of 2nd to 4th-order branching were roughly plagiophile, while the 1st-order leaves were classified as extremophiles. When the coffee leaves were planophile, irrespective of genotype, this pattern was found at the lowest, 1st plant stratum, and the newest developed 4th stratum. Such responses were not obligatorily related to water regime, similar to branch elevation – with exception of ‘E083’, very sensitive to drought. Taken together, our data suggest that the leaf and branch elevations in C. arabica were more influenced by light distribution through the canopy profile – i.e., self-shading – than by water availability.

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Alcides Carvalho and the selection of Catuaí cultivar: interpreting the past and drawing lessons for the future

Cited by 9 publications

References 10 publications

Designing the best breeding strategy for Coffea canephora: Genetic evaluation of pure and hybrid individuals aiming to select for productivity and disease resistance traits

Designing the best breeding strategy for Coffea canephora: Genetic evaluation of pure and hybrid individuals aiming to select for productivity and disease resistance traits

Selection Strategy For The Beverage Sensory Characterization In A Large Arabica Coffee Germplasm Bank

Drought responses in Coffea arabica as affected by genotype and phenophase. I – leaf distribution and branching

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