Genetic variability of conilon coffee population from cultivar ‘ES8152’ based on morphoagronomic variables

Senra, João Felipe de Brites; Silva, Josimar Aleixo da; Ferrão, Maria Amélia Gava; Milheiros, Idalina Sturião; Fassarella, Kamila Machado

doi:10.25186/.v17i.1986

Cited by 3 publications

References 11 publications

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Promising conilon coffee trees clones for agroforestry and intercropping systems

de Brites Senra,

da Silva,

Esposti

et al. 2024

Agroforest Syst

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This research aimed to select conilon coffee tree clones (Coffea canephora Pierre ex A.Froehner) for agroforestry and/or intercropping systems. The experiment was carried out at Bananal do Norte Experimental Farm (20º45' S and 41º17' W), Espírito Santo, Brazil. The clones were evaluated in an agroforestry system with "urograndis" hybrid eucalyptus trees (Eucalyptus grandis W.Hill × E. urophylla S.T.Blake) plus prata-type banana herbs (Musa spp.) and an intercropping with 'Bahia' sweet orange trees (Citrus sinensis (L.) Osbeck). An augmented block experiment design, with two plants per plot, four controls, in six blocks in the agroforestry system and four in the intercropping, was adopted. Thirteen morphophysiological characteristics were evaluated. Data analysis was performed using the restricted maximum likelihood method and best linear unbiased prediction and the signi cance of genetic effects by the likelihood ratio test. To select superior clones the Mulamba-Rank index was performed. Twenty clones were selected for the agroforestry and 20 for the intercropped system. The clones 16, 17, 35, 43, 48, 61, 64, 68 and T3 were the most promising for both systems. There is genetic variability to be explored among the clones, being possible the development of varieties, in the future, for agroforestry and intercropping systems.

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Promising conilon coffee trees clones for agroforestry and intercropping systems

de Brites Senra,

da Silva,

Esposti

et al. 2024

Agroforest Syst

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Root system of Coffea canephora cv. Robusta genotypes cultivated in the Brazilian Amazon

Schmidt,

Silva,

Ferreira

et al. 2024

Discov Agric

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The root system distribution of coffee, especially Coffea canephora cv. Robusta, remains poorly characterized. The aim of this study were: (i) to analyze the distribution of the root system in various genotypes of C. canephora cv. Robusta cultivated in the Amazon region; (ii) to evaluate genetic variability based on root traits; and (iii) to test the correlation between root traits, aboveground part, and production capacity. Roots were collected up to a depth of 60 cm and 30 cm away from the stems. The roots were washed, scanned, and processed to quantify root volume (mm3 cm−3), surface area (mm2 cm−3), diameter (mm), and length (mm cm−3). The variations in root systems reveled phenotypic variability among different genotypes of C. canephora cv. Robusta. Most roots were concentrated in the surface layer of the soil (0–30 cm), with LB015 standing out. At a depth of 50–60 cm, AS10, AS4, A106, and GJ08 had more roots than other genotypes, suggesting a promising capacity to avoid drought. There were significant negative correlations between root traits, aboveground part, and production capacity. This study provides valuable information for the selection of genotypes with desirable root traits for different environmental conditions, contributing to the improvement of management practices and breeding programs for Robusta coffee.

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Promising conilon coffee trees clones for agroforestry and intercropping systems

Senra

Silva

Esposti

et al. 2023

Preprint

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This research aimed to select conilon coffee tree clones (Coffea canephora Pierre ex A.Froehner) for agroforestry and/or intercropping systems. The experiment was carried out at Bananal do Norte Experimental Farm (20º45' S and 41º17' W), Espírito Santo, Brazil. The clones were evaluated in an agroforestry system with “urograndis” hybrid eucalyptus trees (Eucalyptus grandis W.Hill × E. urophylla S.T.Blake) plus prata-type banana herbs (Musa spp.) and an intercropping with ‘Bahia’ sweet orange trees (Citrus sinensis (L.) Osbeck). An augmented block experiment design, with two plants per plot, four controls, in six blocks in the agroforestry system and four in the intercropping, was adopted. Thirteen morphophysiological characteristics were evaluated. Data analysis was performed using the restricted maximum likelihood method and best linear unbiased prediction and the significance of genetic effects by the likelihood ratio test. To select superior clones the Mulamba-Rank index was performed. Twenty clones were selected for the agroforestry and 20 for the intercropped system. The clones 16, 17, 35, 43, 48, 61, 64, 68 and T3 were the most promising for both systems. There is genetic variability to be explored among the clones, being possible the development of varieties, in the future, for agroforestry and intercropping systems.

show abstract

Genetic variability of conilon coffee population from cultivar ‘ES8152’ based on morphoagronomic variables

Cited by 3 publications

References 11 publications

Promising conilon coffee trees clones for agroforestry and intercropping systems

Promising conilon coffee trees clones for agroforestry and intercropping systems

Root system of Coffea canephora cv. Robusta genotypes cultivated in the Brazilian Amazon

Promising conilon coffee trees clones for agroforestry and intercropping systems

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