2019
DOI: 10.4238/gmr18300
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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

Abstract: 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 … Show more

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Cited by 7 publications
(9 citation statements)
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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%
See 1 more Smart Citation
“…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%
“…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%
“…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%