January 2018

Physiological quality of bean genotypes seeds peanut and xamego treated with fungicides and insecticides

Bean is one of the most important crops because it is a staple food. In order to control diseases and pests, the use of fungicides and insecticides in the seed treatment are efficient methods. In this sense, the aim of this study was to evaluate the effect of fungicides and insecticides on physiological quality of bean seeds. The experiment was conducted in a laboratory and greenhouse, and seeds of two genotypes of...

Author(s): Khétrin Silva Maciel, Paula Aparecida Muniz de Lima, Fernando Zanotti Madalon, Simone de Paiva Caetano Bucker Moraes, Vinícius Agnolette Capelini, Caroline Merlo Meneghelli, José Guilherme Bergamim Mellere, Patrícia Alvarez Cabanez, Rodrigo Sobreira Alexandre and José Carlos Lopes

January 2018

Use of alternative substrates in production of tomato seedlings

Tomato is one of the most produced vegetables in the whole Brazilian territory, also presenting great income to the family producer. The use of organic or alternative substrates has grown, since its acquisition by the producer is easy. Aiming at these factors, the objective of this work was to evaluate the production of three cultivars, Santa Clara, Santa Cruz Kada Gigante and Santa Adélia tomatoes in seven types...

Author(s): Hiago Felipe Lopes de Farias, Fernando Ribeiro Teles de Camargo, Isneider Luiz Silva, Sueli Martins de Freitas Alves, Caroline Xavier dos Santos and Elaine de Fátima Miranda Freitas

January 2018

Tree species’ growth in a silvipastoral system in Amazon

This research aimed to evaluate the dendrometric development of four tree species (Carapa guianensis Aubl. (Meliaceae); Dipteryx odorata (Aubl.) Willd (Fabaceae), Swietenia macrophylla King (Meliaceae) and Handroanthus chrysotrichus (Mart ex A. DC.) Mattos (Bignoniaceae)) in a silvopastoral system in Santarém, Pará, Brazil. Productive activities in the forest sector create a demand for technical capacity...

Author(s): E. C. Silva, J. R. V. Gama, R. Rode and A. L. M. Coelho

January 2018

Effects of extracts of Oxalis barrelieri L. and Cymbopogon citratus stapf, coupled with NaCl sorting on; seed health, germination and seedlings vigor of rice (Oryzae sativa L).

The extracts of Oxalis barrelieri and Cymbopogon citratus were tested for their antifungal activity against Bipolaris oryzae and Fusarium moniliforme, and use as seed treatment coupled with NaCl treatment to improve the seed germination and the seedlings vigor of treated rice seeds. The significance of the inhibitory activity of the plant extracts against B. oryzae and F moniliforme was type of extract and concentration...

Author(s): Fouelefack François Romain, Nguefack Julienne, Dongmo Lekagne Joseph Blaise, Dongmo Nanfack Albert, Azah Udom Rene and Nkengfack Augustin Ephrem

January 2018

Gene expression and antioxidant enzymatic activity in passion fruit exposed to aluminum

The objective of this study was to investigate changes in enzymatic activity and gene expression related to antioxidant defense in two passion fruit cultivars (FB100 and FB200) exposed to aluminum. The specific activity of superoxide dismutase (SOD), catalase and ascorbate peroxidase were analyzed, in addition to their relative expression pattern. The characterization of gene expression was achieved by semi-quantitative...

Author(s): Irany Rodrigues Pretti, Anny Carolyne da Luz, Tatiane Lemos Perdigão, Raquel Alves Araújo and Maria do Carmo Pimentel Batitucci

January 2018

Assessment of entomotoxic effects of powder and oil from leaves and seeds of Hura crepitans (L.) in the control of Callosobruchus maculatus (F.)

Entomotoxic effects of powder and oil from the leaves and seed of Hura crepitans (L.) on Callosobruchus maculatus (F.) was investigated at the Pest Management Laboratory in the Department of Crop, Soil and Pest Management, the Federal University of Technology Akure, Ondo State, Nigeria under prevailing laboratory conditions of 28±3°C temperature and 65 ± 5% relative humidity. The powders from the...

Author(s): Adebayo R. A., Onibon-oje O. O. and Dauda Z.