Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; Soybean farmers have interest on increasingly early highly productive cultivars has stimulated the development of new genotypes for breeding soy programs. So that, this study aimed to evaluate the agronomic characteristics of 79 progenies of ten biparental crosses Program Soybean Breeding in Federal University of Uberlândia. The experiment was conduct...
The present study evaluated the hypothesis that application of potassium silicate on leaf, sweet pepper plants Capsicum annuum L. (Solanaceae) is able to reduce the negative effects of water stress under greenhouse conditions. The yield (kg ha-1) and quality (leaf area index, length, diameter, shell thickness and weight of fresh fruits, dry fruits, and number of fruits / plant with and without anomalies) were q...
Fundação de Amparo a Pesquisa do Estado de São Paulo; The aphid parasitoid Lysiphlebus testaceipes (Cresson) is an important biological control agent of Rhopalosiphum padi (Linnaeus) and the use of silicon (Si) in plant nutrition induces resistance to aphids in wheat. The female parasitoids are attracted to chemical cues (volatiles) released by plants in the process of herbivory. However, the release of volatil...
Maize (Zea mays L.) cultivation has greatly evolved in several aspects in the past decades. These sets of changes, together with the need for more conclusive and available information about interactions that occur in the plant, are fundamental for the understanding of plant behavior when subjected to environmental challenges. Studies on the effects of maize defoliation, mainly during grain filling, are needed. ...
Coffee is a perennial plant, of great importance for the national agribusiness. Currently, Brazil is the world's largest producer and the second largest consumer. The state of Minas Gerais produces almost half of the grains of the country, and the Cerrado region contributes positively to this production, according to geographic and climatic conditions favorable for this culture. However, in addition to the volu...
Fundação de Amparo a Pesquisa do Estado de Minas Gerais; The mixture of grained silicate with NPK fertilizer, still not evaluated agronomic. Reactions between the components can occur, affecting principally the silicon and phosphorus solubility. Thus, three experiments were set up to evaluate the interaction between Si e P in two soils, with maize and soybean crops. The first study consisted in incubation of si...
Soybean [Glycine max (L.) Merrill] is considered one of the most economically important crops. In Brazil, it is grown in considerable diversity of environments. Climate changes have influenced significantly agricultural production. This study aims to evaluate adaptability and stability of soybean genotypes and to select those tolerant to excess water in the shoot in mid northern state of Mato Grosso, Brazil as ...
This work aimed at investigating the influence of insecticide treatment, seed size, and storage condition in corn quality of hybrid seeds through six experiments conducted at DuPont do Brasil S. A. Pioneer Seed Division Plant, located in Itumbiara, GO. Seedling emergence field test took place in Campo Alegre Farm, in the municipality of Morrinhos, GO. The six experiments embraced all insecticide seed treatment,...
Among the factors affecting wheat grain yield and quality, insects are notorious by the degrading effects, which can be reduced by silicon use. Despite the knowledge of silicon effects on the increase of antibiosis and non-preference of plants to apterous aphids, studies on the species Sitobion avenae (Fabricius) (Hemiptera: Aphididae) and the effect of silicon on the biology and preference for the host plant b...
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; The experiments were conducted in Uberlândia, Minas Gerais and the fruits of Butia capitata (Mart) Becc were collected in the region of Montes Claros - MG. Different embryo immersion times were tested in the first experiment, using 0.25% chlorine solution for 10, 20 or 30 minutes, and immersed, or not, for 10 minutes in a solution of the fungicide met...