Divergence and genetic parameters between coffea sp. genotypes based in foliar morpho-anatomical traits

Giles, João Antônio Dutra; Ferreira, Amanda Duim; Partelli, Fábio Luiz; Aoyama, Elisa Mitsuko; Ramalho, José C.; Falqueto, Antelmo Ralph

doi:10.1016/j.scienta.2018.09.038

Cited by 31 publications

(36 citation statements)

References 43 publications

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“…Likewise, the UPGMA Group II were parted into three Tocher groups, whereas only the genotype 09 did not match the corresponding group. Similarities between the Tocher optimization method and the hierarchical unweighted pair group method using arithmetic averages (UPGMA) were also found by Giles et al [31] and Dubberstein et al [53]. In relation to the relative contribution of each root trait, as the root diameter has the lowest contribution (6.55%), it should not be considered as a main root trait for C. canephora breeding.…”

Section: Cluster Analysesmentioning

confidence: 59%

“…Genotype 33 belongs to the Emcapa 8111 cultivar, and the genotypes 34 and 39 belong to the Emcapa 8131 cultivar [30], which are late-season cultivars. The genotypes IDs 1, 11, 15, 16, 30 and 43 belong to the Tributum cultivar [8,31], which is recommended for areas under 500 m of altitude in the Brazilian States of Espírito Santo, Southern Bahia, and East Minas Gerais. The genotypes IDs 30 and 35 belong to the Andina cultivar [9], which is recommended for Brazilian states with latitude lower than 22 • S, altitude lower than 900 m and minimum air temperature not lower than 8 • C for more than 10 days in a year.…”

Section: Study Site Soil Characterization and Coffee Genotypes Studiedmentioning

confidence: 99%

“…Coffee genotypes were grouped into four different groups (Figure 2), considering a cut-off point of 38% of dissimilarity in the dendogram, as recommended by Mojena [31]. In order to better understand the five different groups formed, the mean averages for root length density, root superficial area, and root volume were calculated for each group (Figure 3).…”

Section: Cluster Analysesmentioning

confidence: 99%

“…Group III was composed of five coffee genotypes (ID 02,27,29,33,and 42). Groups IV, V, VI, VII, VIII, and IX were composed of two genotypes each, and group X was composed of only one coffee genotype (31). Root superficial area, root length density, root volume and root diameter had a relative contribution for the diversity within genotypes of 43.1%, 33.9%, and 6.5%, respectively.…”

Section: Cluster Analysesmentioning

confidence: 99%

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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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Section: Cluster Analysesmentioning

confidence: 59%

Section: Study Site Soil Characterization and Coffee Genotypes Studiedmentioning

confidence: 99%

Section: Cluster Analysesmentioning

confidence: 99%

Section: Cluster Analysesmentioning

confidence: 99%

See 2 more Smart Citations

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

et al. 2020

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“…The total area of the field was approximately 5.0 ha. The coffee planting occurred in March 2010 using 3.0 x 1.0 m (3.333 plants ha -1 ) spacing with the genotype 'Bamburral' , which belongs to the Tributum variety (Giles et al, 2019;Partelli et al, 2020). The region's climate is hot and humid (Aw-type, Köppen), with a rainy season in spring-summer and a dry season in the fall (Alvares et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Nutritional balance and its relationship to yield in a coffee field: Inferences from geospatial analysis

Silva

Partelli

Gontijo

et al. 2020

Rev. bras. eng. agríc. ambient.

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Information obtained from studies of spatial variability and the Diagnosis and Recommendation Integrated System (DRIS) may contribute to understanding better the relationship between mineral nutrient balance and factors that limit the crop yield. This study shows that nutritionally balanced plants may be associated with low productivity in Conilon coffee fields. The study was carried out on a highly productive Conilon coffee (Coffea canephora) field, in São Mateus, state of Espírito Santo, Brazil. A sample grid was established with 100 points, each point linked to one plant. Twenty pairs of leaves from each plant were collected from productive branches to create a sample for nutritional analysis. The rust incidence (Hemileia vastatrix), the presence of the coffee borer (Hypothenemus hampei), and the physical characteristics of the soil were evaluated in each sampled plant. DRIS and Nutrient Balance Index (NBI) were calculated, and from the yield data, they were characterized using descriptive statistics. Maps were created showing the spatial distribution of the NBI, yield, total sand, and incidence of rust and coffee borer. It was verified the low relationship between nutritional balance and yield in Conilon coffee, suggesting that non-nutritional factors also influenced plant production. In areas of the maps with high NBI, the plant’s nutritional balance was the main limiting factor of production, since most plants in this area produced less than the average productivity of the plants sampled. The use of a geostatistics tool combined with the NBI resulted in better understanding of the relationship between nutritional and non-nutritional variables on the Conilon coffee yield.

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Variability estimation and genetic divergence in Cymbopogon winterianus for development of superior genotype

2021

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Cymbopogon winterianus Jowitt. is cultivated worldwide for its industrial and pharmaceutical applications. The economic value for this crop is due to its herbage, essential oil yield, and citronellal content. Therefore, this study was conducted to identify the traits that are important to increase the economic yield and to estimate the variability among the Cymbopogon winterianus germplasm necessary for selection of superior genotypes. In this study, a total of 72 accessions of Cymbopogon winterianus were collected from different parts of Northeast India and planted in the experimental farm of CSIR-NEIST, Jorhat, Assam, India. Divergence and association studies among the nine characters were estimated from the 3-yr pooled data. The genotypic coefficient of variation was slightly lower than the phenotypic coefficient of variation for all the traits studied. High genetic advance with high heritability (H 2 BS) estimates were observed in tillers per bush, herbage yield, citronellal, and essential oil content. Path coefficient analysis also supported that the leaves per bush, tillers per bush, leaf breadth, and length of basal sheath were the major contributing characters for the herbage yield. Tillers per bush, leaves per bush, and herbage yield were the direct and indirect factors affecting the essential oil content. Divergence study partitioned the germplasm into 15 different clusters in which tillers per bush, leaves per bush, plant height, leaf length, and herbage yield contributed more towards variability. All the parameters studied could be considered as selection criterion to improve economic yield of C. winterianus and in estimating variability necessary for breeding program.

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Divergence and genetic parameters between coffea sp. genotypes based in foliar morpho-anatomical traits

Cited by 31 publications

References 43 publications

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

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

Nutritional balance and its relationship to yield in a coffee field: Inferences from geospatial analysis

Variability estimation and genetic divergence in Cymbopogon winterianus for development of superior genotype

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