32 documents found, page 1 of 4
Nutrient accumulation in fruits and grains of black pepper at different ripenin...
Dalazen,Jéssica Rodrigues; Valani,Gustavo Pereira; Vieira,Henrique Duarte; Ramalho,José Cochicho; Lacerda Jr,Valdemar; Romão,WandersonABSTRACT: Nutrients accumulation in plants/fruits varies according to the crop development stage and its quantification is important to determine nutrients exportation for fertilization planning and nutrient balancing. This study determined the accumulation of nutrients in different parts of Piper nigrum ‘Bragantina’ spikes harvested at two ripening stages (still-green and red-colored spikes). Assessments in se...
Micronutrient content and accumulation in leaves and bunches of black pepper du...
Dalazen,Jéssica Rodrigues; Valani,Gustavo Pereira; Gontijo,Ivoney; Dias,Jairo Rafael Machado; Partelli,Fábio LuizABSTRACT A comprehensive knowledge about micronutrient dynamics in leaves and bunches of black pepper is needed in order to proper diagnose nutrient needs, and thus facilitate fertilization management. This study aimed to evaluate micronutrient concentration and accumulation in leaves and bunches of black pepper bunches to understand the crop nutritional demand. The experiment was carried out on in a commercial...
Root development and productivity of ‘Pérola’ pineapple as a function of fertig...
Silva,Fábio Oseias dos Reis; Zucoloto,Moises; Ribeiro,Ana Maria Alves de Souza; Bonomo,Robson; Partelli,Fábio Luiz; Nascimento,Maria Laura UrbanoAbstract The aim of this study was to evaluate root development and productivity of ‘Pérola’ pineapple as a function of split N and K fertilization and fertigation management. Four different split nitrogen and potassium fertilizations were evaluated in combination, as well as four different fertigation managements. Root samples were analyzed using the Safira software and surface area, length, root volume per so...
Yield of robusta coffee in different spatial arrangements
Espindula,Marcelo Curitiba; Tavella,Leonardo Barreto; Schmidt,Raquel; Rocha,Rodrigo Barros; Dias,Jairo Rafael Machado; Bravin,Maísa PintoAbstract The objective of this work was to determine the contribution of the number of stems to the composition of individual plant yield, and to individual and overall robusta coffee (Coffea canephora) yield at different planting densities, using a fixed number of stems per plant. The experiment was carried out in two phases. The first phase was performed from 2011 to 2015, in the municipality of Ouro Preto do...
Tributun: a coffee cultivar developed in partnership with farmers
Partelli,Fábio Luiz; Giles,João Antonio Dutra; Oliosi,Gleison; Covre,André Monzoli; Ferreira,Adésio; Rodrigues,Valcir MeneguelliAbstract Tributun is a cultivar of Coffea canephora derived from breeding clones discovered by farmers. It was evaluated at 150 m asl in northern Espírito Santo for yield, plant vigor and pest and disease resistance. The cultivar with six genotypes produces a mean yield of 90.87 bags ha-1 year-1.
Macronutrient dynamics in leaves and bunches of black pepper
Dalazen,Jéssica Rodrigues; Gontijo,Ivoney; Paye,Henrique de Sá; Valani,Gustavo Pereira; Tomaz,Marcelo Antonio; Partelli,Fábio LuizAbstract: The objective of this work was to determine the macronutrient dynamics in leaves and bunches of black pepper (Piper nigrum) throughout the plant reproductive cycles. The experiment was carried out in a commercial field of 'Bragantina' black pepper. Leaves and bunches were sampled every 21 days for one year, during two crop cycles. The bunches were sampled from the twenty eighth day after the appearanc...
Soil patterns and foliar standards for two cocoa clones in the States of Espíri...
Oliveira,Marcos Góes de; Partelli,Fábio Luiz; Cavalcanti,André Cayô; Gontijo,Ivoney; Vieira,Henrique DuarteABSTRACT: The objective of this research was to establish soil patterns and foliar standards for clonal crops of cocoa CCN51 and PS1319 in the Atlantic regions within the northern Espírito Santo and southern Bahia States. Samples were collected from September to October 2015, in 45 high productive plots, being 23 plots of clone CCN51 and 22 of clone PS1319. Sufficiency ranges for soil and foliar standards were ...
Andina - first clonal cultivar of high-altitude conilon coffee
Partelli,Fábio Luiz; Golynski,Adelmo; Ferreira,Adésio; Martins,Madlles Queiroz; Mauri,Aldo Luiz; Ramalho,José Cochicho; Vieira,Henrique DuarteAbstract Andina is a conilon coffee variety originated from a selection of clones discovered by farmers. It was cultivated and evaluated for yield and plant vigor an altitude of 850m asl. Five genotypes (A1, NV2, NV8, P1 and Verdim TA), with a mean yield of 51.3 bags per hectare per year.
Impacts of water availability on macronutrients in fruit and leaves of conilon ...
Covre,André Monzoli; Partelli,Fábio Luiz; Bonomo,Robson; Tomaz,Marcelo Antônio; Ramalho,José CochichoAbstract: The objective of this work was to evaluate the concentrations and accumulation of macronutrients in conilon coffee (Coffea canephora) fruit, and their concentrations in leaves, over two years, in irrigated and nonirrigated coffee plants. Three-year-old conilon coffee plants of the cultivar Emcapa 8111 genotype 02 were used. An experimental design was carried out in randomized complete blocks, in a spl...
Physiological responses of photosynthesis in black pepper plants under differen...
Oliveira,Marcos Góes; Oliosi,Gleison; Partelli,Fábio Luiz; Ramalho,José CochichoABSTRACT Plants of black pepper (Piper nigrum L.) may display changes in their photosynthetic activity as a result of environmental seasonal changes. Intercropping with tree species may represent an alternative to mitigate the impacts of climatic changes on crops. The objective of this work was to evaluate the physiological responses of photosynthesis in black pepper plants under different shade levels promoted...