5 documents found, page 1 of 1
Root trait variability in Coffea canephora genotypes and its relation to plant ...
Silva, Larícia Olária Emerick; Schmidt, Raquel; Valani, Gustavo Pereira; Ferreira, Adésio; Ribeiro-Barros, Ana I.; Partelli, Fábio LuizCo ee breeding based on root traits is important to identify productive genotypes under adverse environmental conditions. This study assessed the diversity of root traits in Co ea canephora and its correlation with plant height and crop yield. Undisturbed soil samples were collected down to 60 cm from 43 co ee genotypes, in which one of them was propagated by seed and all others by stem cutting. The roots were ...
Biometry and gas exchange in clonal cuttings coffee submitted to different subs...
Alves, Erilene Romeiro; Schmidt, Raquel; Moreira, Riziely; Dias, Jairo Rafael Machado; Maia, EmanuelAimed to evaluate the biometry and leaf gas exchange of Coffea canephora seedlings submitted to different substrates, in five evaluation periods. The experiment was carried out in Rolim de Moura, Rondônia. It was conducted in a split plot scheme in time, composed by the combination of three substrates (soil, organic compost and commercial substrate) with five assessment periods (25, 50, 75, 100, 125) days after...
Seedlings formation of coffee clonal influenced by cuts basal and substrate
de Aquino, Lourena Pegorer; Schmidt, Raquel; Dubberstein, Danielly; Machada Dias, Jairo RafaelThis study aimed to evaluate substrates and types of basal cuts on stakes for the production of coffee clonal seedlings. The experiment was carried out in a greenhouse. The cuttings were obtained from the middle portion of standardized orthotropic branches. The experiment was a factorial 2x7 with two types of cuttings (basal cut straight and bevel) and seven substrates: soil, commercial, coffee straw, wood shav...
Dry matter in fruits, leaves and plagiotropic branches of grown coffee trees in...
Dubberstein, Danielly; Partelli, Fabio Luiz; Schmidt, Raquel; Dias, Jairo Rafael Machado; Covre, André ManzoliDifferent factors may influence the accumulation of dry matter in the coffee, as the nutritional management and the phenological stage of the plant. This study aimed to assess the number of fruits and the dry matter content in fruits, leaves and reproductive branches of Coffea canephora, fertilized and unfertilized conditions in the Western Amazon. The experiment was conducted in clonal tillage with randomized ...
Plant pruning and fold of the main stem in the formation of clonal coffee
Schmidt, Raquel; Machado Dias, Jairo Rafael; Curitiba Espindula, Marcelo; Partelli, Fábio Luiz; Romeiro Alves, ErileneThis study aimed to evaluate the vegetative growth of Coffea canephora undergoing techniques of cut tip bending the main stem at different times. We used the design in randomized blocks, factorial 2 (technical) x 5 (60, 75, 90, 105 and 120 days after planting the crop) with four replicates. Induction of clonal coffee should be done at 60 and 86 days after permanent planting, utilizing the bending and the apical...