5 documents found, page 1 of 1
In vitro evaluation of the acaricidal activity of propolis against cattle ticks
Silva, Alyne Madja dos Santos; Moreira, Édimo Fernando Alves; Espindula, Ana Paula; Benfica, Lorena Ferreira; Carvalho Júnior, Rosemar Alves dePropolis is a natural substance that is produced by bees and has been used since ancient times for its pharmacological properties. The cattle tick Rhipicephalus (Boophilus) microplusis responsible for great economic losses by cattle breeding programs. The aim of the present study was to evaluate the in vitro effect of propolis extracts on engorged female ticks. The experiment was performed at the Uberaba IFTM. ...
Changes in chemical soil and corn yield after application of gypsum and potassi...
Charlo, Hamilton César de Oliveira; Almeida, Juliano da Silva Martins de; Lana, Regina Maria Quintão; Castoldi, Renata; Moreira, Édimo Fernando AlvesSoil liming is a common practice in agriculture. It aims to reduce soil acidity and to supply calcium and magnesium. Lime, however, is not easily soluble in the soil, and its reaction products are often concentrated in the application zone, which is mainly the topsoil layer. In order to increase the concentration of nutrients in deeper layers, agricultural gypsum—a byproduct of phosphoric acid production proces...
Artificial neural networks and linear discriminant analysis in early selection ...
Peternelli, Luiz Alexandre; Moreira, Édimo Fernando Alves; Nascimento, Moysés; Cruz, Cosme DamiãoOne of the major challenges in sugarcane breeding programs is an efficient selection of genotypes in the initial phase. The purpose of this study was to compare modelling by artificial neural networks (ANN) and linear discriminant analysis (LDA) as alternatives for the selection of promising sugarcane families based on the indirect traits number of sugarcane stalks (NS), stalk diameter (SD) and stalk height (SH...
Técnicas de aprendizado estatístico aplicadas à seleção entre famílias de cana-...
Moreira, Édimo Fernando AlvesUma das grandes dificuldades dos programas de melhoramento de cana-de-açúcar é a seleção de genótipos nas fases iniciais. O uso de métodos estatísticos que visam a predição com base em informações tomadas a nível de campo pode contribuir para aumentar a probabilidade de identificação de genótipos potencialmente superiores. O objetivo deste trabalho é comparar as técnicas de classificação regressão logística (LR...
Fertigation and growth regulator on coffee seedling production in tubes
Coelho, Victor Peçanha de Miranda; Rosa, Kelly Martins; Paiva, Paulo; Moreira, Édimo Fernando Alves; Carvalho, MychelleThe use of quality seedlings is important in establishing a productive coffee crop. However, the most widely used method to produce coffee seedlings is time consuming (6-12 months) and lacks new production technologies. This study aimed to assess the use of fertigation and a growth regulator in the production of coffee seedlings, in order to develop a system faster than the conventional method. For that, Topázio c...