Research Article Variability and nutritional balance among genotypes of &lt;i&gt;Coffea canephora&lt;/i&gt; (Rubiaceae) in drought versus adequate water supply

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

doi:10.4238/gmr18121

Cited by 3 publications

(3 citation statements)

References 14 publications

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“…Water availability also contributes to nutrient uptake due to large volumes of absorbable mineral nutrients in the water (Cramer;Hawkins;Verboom, 2009). Thus, soil moisture management can significantly interfere with the nutritional aspects, such as the accumulation and concentration of nutrients in leaves and fruits of the crop (Covre et al, 2018a;2018b;Starling et al, 2018). In addition, the adjustment of the internal nutrient content can affect the acclimatization mechanisms (Ramalho et al, 2013), which is directly related to the developmental capacity of the plant under specific environments like higher altitudes.…”

Section: Introductionmentioning

confidence: 99%

Nutritional characteristics of conilon coffee genotypes grown in transition altitude with water management in soil

et al. 2021

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The modification of water management in the Conilon coffee (Coffea canephora) crop is a possible strategy to improve nutritional management efficiency and ensure better use of the genotypes for regions of transitional altitude. The objective of this study was to evaluate the nutritional characteristics of 27 genotypes of C. canephora and submit them to two water management schemes in soil. The goal was to find evidence of higher leaf contents, exports, and nutrient recycling potential in the productive branches of various genotypes. The experiment was carried out in a randomized block design with three replications in a split-plot scheme. The treatment consisted of 27 genotypes of C. canephora and two water management schemes in soil (“Irrigated” and “Rainfed”). Nutritional content in leaves, exported by fruits, and pruned (leaves and stem of plagiotropic branches) recyclable contents were evaluated for nitrogen, phosphorus, potassium, calcium, and magnesium. Variations were observed among genotypes for all the parameters evaluated in both water management in soil. However, significant homogeneous groups were formed among the genotypes in the irrigated management. Furthermore, the genotypes showed distinct nutritional characteristics in response to water management in the soil. Genotypes 108 and 302 had higher nutritional content and were exported by fruits, regardless of soil water management.

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Section: Introductionmentioning

confidence: 99%

Nutritional characteristics of conilon coffee genotypes grown in transition altitude with water management in soil

et al. 2021

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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%

“…The nutritional content in plant tissues; the efficiency in which the plants acquire, translocate and utilize the nutrients; and tolerance to cultivation in environment with low fertility have all been successfully used as parameters to study the variability among genotypes of C. canephora and to identify groups with different traits (Martins et al, 2013a;2013b;Colodetti et al, 2014;Machado et al, 2016;Martins et al, 2015b;Starling et al, 2018). Differences among genotypes were observed for the content of all macronutrients in green tissues, and the magnitude of the genetic parameters showed that nutritional contents can be greatly influenced by the genetic constitution (Table 1).…”

Section: Discussionmentioning

confidence: 99%

Research Article Genetic diversity in nutritional parameters in response to drought of <i>Coffea</i> <i>canephora</i> 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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Genetic Diversity Based on Nutrient Concentrations in Different Organs of Robusta Coffee

et al. 2022

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The objective of this study was to evaluate nutrient concentrations in the flowers, leaves (pre-flowering and grain-filling period), grains, and husks of Robusta coffee genotypes cultivated in the Amazon region, as well as to identify their genetic diversity. This experiment was carried out in Alta Floresta D’Oeste, Rondônia, Brazil, in randomized blocks with three replications; for the leaves, a factorial experimental design of sampling periods was included. The nutrient concentrations of the different evaluated organs were subjected to analysis of variance by the F test (p < 0.01), and the genetic parameters were estimated. To determine the genetic diversity, the genotypes were grouped by the UPGMA hierarchical method, and to predict it the relative importance of traits was analyzed. Genetic divergence among Coffea canephora genotypes was indicated by the leaf nutrient concentrations. At a maximum dissimilarity threshold of 82% for the genotypes, the UPGMA method formed six groups. Concentrations of nitrogen (N) and phosphorus (P) in the leaf sampling periods of pre-flowering and grain filling were not influenced by genotypes. The leaf and flower iron (Fe) concentrations contributed most to genetic divergence. For a nutritional diagnosis of Robusta coffee, it is important to take into account the comparisons of genetic diversity as well as the nutritional requirements during the flowering and grain-filling periods.

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Research Article Variability and nutritional balance among genotypes of <i>Coffea canephora</i> (Rubiaceae) in drought versus adequate water supply

Cited by 3 publications

References 14 publications

Nutritional characteristics of conilon coffee genotypes grown in transition altitude with water management in soil

Nutritional characteristics of conilon coffee genotypes grown in transition altitude with water management in soil

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

Genetic Diversity Based on Nutrient Concentrations in Different Organs of Robusta Coffee

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