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Parasitism of Meloidogyne exigua races 1 and 2 in coffee plants derived from Timor Hybrid

Pereira, Antonio Alves; Caixeta, Larissa de Brito; Fatobene, Bárbhara Joana dos Reis; Oliveira, Claudio Marcelo Gonçalves; Gonçalves, Wallace; Guerreiro Filho, Oliveiro (Universidade Federal de Santa Maria, 2021)

To investigate the degree of parasitism of two populations of Meloidogyne exigua, the gall index (GI) and the reproduction factor (RF) of M. exigua races 1 (Est E2) and 2 (Est E1) were analyzed in 47 progenies on F3:4 or ...
Chemical analyses of flowers and leaves for nutritional diagnoses of coffee trees

Zabini, André Vinicius; Martinez, Herminia Emilia Prieto; Neves, Júlio César Lima; Cruz, Cosme Damião; Valadares, Samuel Vasconcelos (Universidade Federal de Santa Maria, 2021)

The chemical analysis of flowers has been studied for some crops. In coffee trees, the flower tissue analysis could anticipate the nutritional diagnosis. This study aimed to: (i) compare the mineral composition of coffee ...
Workers’ exposure to occupational heat during manual coffee harvesting

Ramirio, Lucas Deleon; Sabino, Paulo Henrique de Siqueira; Oliveira Júnior, Geraldo Gomes de; Silva, Adriano Bortolotti da (Universidade Federal de Santa Maria, 2021)

This study evaluated the occupational exposure of workers to heat during manual harvesting of coffee. The case study was conducted between May to August. Occupational heat in coffee plantations was evaluated using the Wet ...
Coffea canephora breeding: estimated and achieved gains from selection in the Western Amazon, Brazil

Rocha, Rodrigo Barros; Teixeira, Alexsandro Lara; Ramalho, Andre Rostand; Espindula, Marcelo Curitiba; Lunz, Aureny Maria Pereira; Souza, Flavio de França (Universidade Federal de Santa Maria, 2021)

Gain from selection is an important criterion in quantifying the efficiency of breeding programs. This study quantified the selection gain estimated under experimental conditions and realized gain achieved in the field, ...
Soil enzymatic activity under coffee cultivation with different water regimes associated to liming and intercropped brachiaria

Rodrigues, Raquel Nogueira; Reis Junior, Fábio Bueno dos; Lopes, André Alves de Castro; Rocha, Omar Cruz; Guerra, Antônio Fernando; Veiga, Adriano Delly; Mendes, Ieda de Carvalho (Universidade Federal de Santa Maria, 2022)

This research evaluated the effects of coffee cultivation with two different water regimes associated or not with liming and the presence/absence of brachiaria as intercrop on the activities of the soil enzymes β-glucosidase, ...
Influence of nitrogen fertilization in mother plants on the growth and quality of clonal seedlings of Coffea canephora ‘Robusta’ plants

Kolln, Alana Mara; Espindula, Marcelo Curitiba; Araújo, Larissa Fatarelli Bento de; Campanharo, Marcela; Rocha, Rodrigo Barros; Lourenço, João Luiz Resende (Universidade Federal de Santa Maria, 2022-01-31)

The nutritional management of the coffee clonal garden influences the production and physiological quality and seedlings production of vegetative propagules. Thus, this study aimed to analyze the seedlings’ production from ...
Bayesian modeling of the coffee tree growth curve

Pereira, Adriele Aparecida; Silva, Edilson Marcelino; Fernandes, Tales Jesus; Morais, Augusto Ramalho de; Sáfadi, Thelma; Muniz, Joel Augusto (Universidade Federal de Santa Maria, 2022-03-14)

When modeling growth curves, it should be considered that longitudinal data may show residual autocorrelation, and, if this characteristic is not considered, the results and inferences may be compromised. The Bayesian ...
Different nitrogen levels on vegetative growth and yield of conilon coffee (Coffea canephora)

Busato, Camilo; Reis, Edvaldo Fialho dos; Oliveira, Marcos Góes; Garcia, Giovanni de Oliveira; Busato, Cristiani Campos Martins; Partelli, Fábio Luiz (Universidade Federal de Santa Maria, 2022-05-11)

The determination of nitrogen in plants by techniques that allow a fast diagnosis, based on plant growth characteristics, can be a useful tool for the nutritional management of coffee plants. Thus, this study evaluated ...
Occupational noise level emitted by self-propelled harvesters during mechanized coffee harvesting

Martins, Kleber Moreira; Sabino, Paulo Henrique de Siqueira; Silva, Adriano Bortolotti da; Oliveira Júnior, Geraldo Gomes de; Ramirio, Lucas Deleon (Universidade Federal de Santa Maria, 2022-08-29)

This study evaluated the level of occupational noise emitted by automotive harvesters during coffee harvest. For the evaluations, three self-propelled harvesters were used: Case-IH® model Coffee Express 200, with cabin; ...
Morpho-agronomic and leaf anatomical traits in Coffeacanephora genotypes

Silva, Larícia Olária Emerick; Schmidt, Raquel; Almeida, Rafael Nunes de; Feitoza, Rodrigo Barbosa Braga; Cunha, Maura da; Partelli, Fábio Luiz (Universidade Federal de Santa Maria, 2022-11-28)

Genetic variability is the basis for coffee genetic breeding. This study evaluated the potential of leaf anatomy and morpho-agronomic traits in studies of genetic variability in C. canephoracultivars. Ten genotypes were ...