5 documents found, page 1 of 1
Sucrose metabolism in coffee submitted to different shade levels
Baliza, Danielle Pereira; Santos, Meline Oliveira; Alves, José Donizeti; Guimarães, Rubens José; Cunha, Rodrigo Luz daThe objective of this study was to evaluate the activity of the enzymes involved in the sucrose metabolism and the carbohydrate levels on the endosperm of the coffee fruit under different shade levels. Four replicater were used, totaling 20 plots, which consisted of eight useful plants. Treatments were arranged in a randomized block design in a 5 x 3 factorial outline, being five shade levels (full sun, 35, 50,...
Performance of F4 arabic coffee progenies before and after framework pruning
Carvalho, Gladyston Rodrigues; Botelho, Cesar Elias; Rezende, Juliana Costa de; Ferreira, Andre Dominguett; Cunha, Rodrigo Luz daThe use of densification in coffee plantations is one of the factors of increased productivity; however, there is theneed to select genotypes adapted to this system of planting. The objective of this study was to select progenies from the cross between the Catuaí Amarelo IAC 2077-1-2-12-70 and Mundo Novo IAC 515-20 with good agronomic characteristics beforeand after framework pruning (cutting off all plagiotrop...
Technical knowledge extraction applied to modeling of occurrence (Cercospora co...
Souza, Vanessa Cristina Oliveira de; Cunha, Rodrigo Luz da; Andrade, Livia Naiara; Volpato, Margarete Marin Lordelo; Carvalho, Vicente Luiz deThe survey of the progress of Cercospora leaf spot becomes potentially useful and understandable in understanding the disease process and in decision making for control measures. In the last years, computer programs have helped to elucidate what factors are biotic or abiotic more representative. The aim of this work was to investigate, using knowledge extraction techniques, which phenological and environmental ...
Alternative control of coffee diseases
Carvalho, Vicente Luiz; Cunha, Rodrigo Luz da; Silva, Nathan Resende NavesThe Rust and Brown-eye-spot are the principle diseases of this crop. The control of these diseases is done by agrochemicals and most of the time is used indiscriminately. While at the same time consumers are demanding produce free of agrochemicals. Based on these facts, this paper aimed to test natural and/or alternative products to control these coffee diseases. These products are less toxic to humans and the ...
“Supermagro” biofertilizer plus organic compost in growing coffee (Coffea arabi...
Araújo, João Batista Silva; Carvalho, Gabriel José de; Guimarães, Rubens José; Morais, Augusto Ramalho de; Cunha, Rodrigo Luz daTo evaluate fertilization with organic compost associated to supermagro biofertilizer leaf application on growth and development of coffee (Coffea arabica L. cultivar Topázio MG-1190), a greenhouse study carried out at the Federal University of Lavras, from March 15 to October 4 of 2003. A randomized complete block design in factorial arrangement (5 x 5 + 3 adictional factors) was used with four replicat...