Research Article Genetic diversity in nutritional parameters in response to drought of &lt;i&gt;Coffea&lt;/i&gt; &lt;i&gt;canephora&lt;/i&gt; cultivated in Rondonia state, Brazil

Starling, Larissa Cristina Torrezani; Martins, Lima Deleon; Rodrigues, Wagner Nunes; Reinicke, Tyago Matheus; Colodetti, Tafarel Victor; Amaral, José Francisco Teixeira do; Partelli, Fábio Luiz; Tomaz, Marcelo Antônio; Espindula, Marcelo Curitiba

doi:10.4238/gmr18300

Cited by 7 publications

(8 citation statements)

References 12 publications

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“…Together with S, the leaf concentrations of Cu and Mg were the highest for H². Evaluating macronutrient concentrations in plant tissues of a C. canephora genotype, Starling et al (2019) also observed that the S and Mg concentrations stood out among the macronutrients with highest H² values.…”

Section: Resultsmentioning

confidence: 85%

“…Leaf N concentration was the trait that contributed least to the genetic diversity among genotypes (table 8, page 31). Similarly, Starling et al (2019) reported that the N concentration in plant tissues of C. canephora genotypes had the lowest relative contribution to genetic diversity by the method of Sing (1981). The study of the relative importance of traits for genetic divergence is highly relevant, since it estimates values based on which those of minor importance for genotype discrimination can be eliminated (20).…”

Section: Figurementioning

confidence: 97%

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Genetic diversity in Coffea canephora genotypes for leaf nutrient concentration

et al. 2021

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This study analyzed the genetic diversity in Coffea canephora genotypes by univariate and multivariate statistical analysis, based on concentrations of macro- and micronutrients in coffee leaves in the stages of pre-flowering and grain filling. The experiment was arranged in randomized blocks with three replications, in a 42x2 factorial design, in which factor one represented the evaluated genotypes and factor two the periods of leaf sampling, i.e., pre-flowering and grain filling. The data of leaf nutrient concentrations were subjected to analysis of variance by the F test (p <0.01), and genetic parameters were estimated. For the study of genetic diversity, the genotypes were grouped by the hierarchical unweighted pair-group method using arithmetic averages (UPGMA). The relative importance of a trait to predict genetic diversity was also studied. There is genetic divergence for leaf nutrient concentration in C. canephora genotypes. With a maximum limit of 60% of dissimilarity between genotypes, four groups were also formed by UPGMA. For the 42 evaluated genotypes, leaf S concentration was the most important trait for genetic diversity; this genotypic variability should be investigated to enhance the efficiency of nutritional diagnosis. Highlights There is genetic variability for leaf nutrient concentration in Coffea canephora The leaf concentration of nutrients in the phenological stage of pre-anthesis is different from the leaf concentration of nutrients in the coffee bean filling period. Leaf concentration of sulfur was the characteristic that contributed most to the genetic diversity among the 42 genotypes, followed by the concentration of copper, boron and magnesium. Genotypic variability for leaf nutrient concentration should be considered for better nutritional management.

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Section: Resultsmentioning

confidence: 85%

Section: Figurementioning

confidence: 97%

Genetic diversity in Coffea canephora genotypes for leaf nutrient concentration

et al. 2021

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“…Several studies have addressed this topic in order to identify elite genotypes of C. canephora [9,12,13]. Current studies have focused on morphological and agronomical traits, leaf anatomy, and nutritional aspects, aiming not only to identify genotypes with higher yields per se, but also genotypes with higher adaptability and stability in conditions of abiotic stresses [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Root Trait Variability in Coffea canephora Genotypes and Its Relation to Plant Height and Crop Yield

et al. 2020

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Coffee breeding based on root traits is important to identify productive genotypes under adverse environmental conditions. This study assessed the diversity of root traits in Coffea canephora and its correlation with plant height and crop yield. Undisturbed soil samples were collected down to 60 cm from 43 coffee genotypes, in which one of them was propagated by seed and all others by stem cutting. The roots were washed, scanned, and processed to quantify root length density, root volume, root superficial area, and root diameter. Additionally, plant height and crop yield were also assessed. Root length density ranged from 40 to 1411 mm cm−3, root volume from 6 to 443 mm3 cm−3, root superficial area from 61 to 1880 mm2 cm−3, and root diameter from 0.6 to 1.1 mm. Roots were concentrated in the topsoil (0–20 cm) for most genotypes. In deeper depths (30–60 cm), root length density, root volume, and root superficial area were higher in genotypes 14, 25, 31, and 32. Positive correlations were found between root traits and both plant height and crop yield. The results of this work may contribute to the overall cultivation of C. canephora, specially for crop breeding in adverse environmental conditions.

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“…The genotypes were obtained from targeted hybridizations carried out in 2004 (Teixeira et al, 2017), followed by the evaluation of plants under experimental conditions in the period from 2005 to 2012 (Teixeira et al, 2017) and field evaluations in different environments of the Western Amazon carried out from 2013 to 2019 (Espindula et al, 2019). The genotypes identified by the prefix BRS were registered in the National Plant Variety Registry (RNC) of the Ministry of Agriculture, Food Supply and Livestock (MAPA) due to their superior productive potential and agronomic characteristics favorable to cultivation (Table 1) (Teixeira et al, 2020).…”

Section: Genetic Materialsmentioning

confidence: 99%

“…In this scenario, methodologies based on principal components are used seeking to reduce the dimensionality of the original variables, representing the original variability in a scatter in the plane with few axes (Covre et al, 2016;W. P. Rodrigues, Vieira, Teodoro, Partelli, & Barbosa, 2016a;Rodrigues, Brinate, Martins, Colodetti, & Tomaz, 2017;Starling et al, 2019). Thus, this study aimed to quantify the genetic divergences between Coffea canephora genotypes based on leaf vegetative and anatomical traits to establish criteria for the early selection of water deficittolerant genotypes.…”

Section: Introductionmentioning

confidence: 99%

Genetic divergence based on leaf vegetative and anatomical traits of Coffea canephora clones

Araújo¹,

Espindula²,

Rocha³

et al. 2021

Semina: Ciênc. Agrár.

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Knowledge of the expression of traits associated with drought tolerance is important to mitigate impacts on coffee production in a climate change scenario. This study aimed to understand the genetic divergence between Coffea canephora genotypes grown in the Western Amazon based on leaf vegetative and anatomical traits. For this, fifteen high-performance genotypes were evaluated in a randomized block design with five replications of one plant per plot to analyze three leaf vegetative traits (leaf area index, root volume, and total dry mass) and five leaf anatomical traits (polar and equatorial diameter, density and number of stomata, and stomatal area). The data were interpreted using analysis of variance and the Scott-Knott mean cluster test (p ≤ 0.05). The Tocher optimization method and principal component analysis with reference points were used to quantify the genetic divergence. Tocher clustering separated the fifteen clones into five groups, and the scatter in the plane into three groups. Stomatal density was the trait that most contributed to the dissimilarity between genotypes with the potential to be used in future studies for the selection of water deficit-tolerant genotypes. The BRS 3213 genotype showed the greatest genetic dissimilarity and composed a group isolated from the other genotypes in terms of anatomical characteristics. Hybrids 12 and 15 have leaf anatomical traits with higher drought tolerance potential.

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

Cited by 7 publications

References 12 publications

Genetic diversity in Coffea canephora genotypes for leaf nutrient concentration

Genetic diversity in Coffea canephora genotypes for leaf nutrient concentration

Root Trait Variability in Coffea canephora Genotypes and Its Relation to Plant Height and Crop Yield

Genetic divergence based on leaf vegetative and anatomical traits of Coffea canephora clones

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