3 documents found, page 1 of 1
Impacts of water deficit in ecophysiological and spectral responses of coffee i...
Silveira, Helbert Rezende de Oliveira; Santos, Meline Oliveira; Silva, Vânia Aparecida; Venturin, Regis Pereira; Volpato, Margarete Marin LordeloThe aim of this study was to evaluate the effect of water stress in spectral and ecophysiological responses of coffee trees intercropped with woody species under water deficit. The “Catuaí Vermelho 99” was planted in monoculture and associated with the tree mahogany, teak and acrocarpo distributed in two spacings (9 x 13.6 and 18 x 13.6 m) line of coffee. Evaluations of growth of tree and coffee were performed ...
Influence of cultivation spacing and two pruning times on stem carbohydrate in ...
Pereira, Sérgio Parreiras; Baliza, Danielle Pereira; Santos, Meline Oliveira; Alves, José Donizeti; Guimarães, Rubens JoséThe objective of this work was to evaluate coffee plant stem carbohydrate contents in function of the cultivation spacing and at two pruning times. The experiment was conducted on a crop in the Fazenda Experimental da Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG), in Machado, MG, implanted in January of 1992. The experimental design was in random blocks in a 4 x 3 x 2 factorial outline, being four s...
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,...