|
|
|
|
|
| Costa,Rodrigo Véras da; Simon,Jones; Cota,Luciano Viana; Silva,Dagma Dionísia da; Almeida,Rodrigo Estevam Munhoz de; Lanza,Fabrício Eustáquio; Lago,Bruno Cocco; Pereira,Alan Alves; Campos,Leonardo José Motta; Figueiredo,José Edson Fontes. |
| Abstract: The objective of this work was to assess yield losses due to stalk rot in corn (Zea mays) hybrids, as well as to identify the main pathogenic fungi responsible for the disease during the off-season, in the state of Tocantins, Brazil. Two field experiments were carried out, one with five hybrids, in 2015, and another with four, in 2016. Ears of healthy and stalk rot-infected plants were collected from each plot, at harvest. Ear size, grain and ear weights, and grain moisture content were measured. From each diseased plant, a stalk piece with two to three nodes was removed for pathogen identification and quantification. The most common pathogens were: Fusarium graminearum, Stenocarpella maydis, and Macrophomina phaseolina. All yield parameters were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fusarium graminearum; Zea mays; Lodging; Stalk breakage; Stem disease. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102300 |
| |
|
|
| Almeida,Rodrigo Estevam Munhoz de; Gomes,Caio Macret; Lago,Bruno Cocco; Oliveira,Silas Maciel de; Pierozan Junior,Clovis; Favarin,José Laércio. |
| Abstract: The objective of this work was to evaluate methods of intercropping corn and Panicum spp. forages and their effects on corn yield and forage development. Two experiments with Panicum spp. were conducted, one with 'Tanzania' and other with 'Massai' in the municipality of Piracicaba, in the state of São Paulo, Brazil, in the 2012/2013 growing season. In both experiments, the treatments were: broadcast seeding of Panicum spp. at the same time of corn sowing; corn with Panicum spp. between rows; Panicum spp. sown with fertilizer; Panicum spp. sown between corn rows after corn establishment; broadcast seeding of Panicum spp. after corn establishment; and sole corn sowing. For corn, leaf nitrogen content, ear height, and grain yield were evaluated. For... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Guinea grass; Interspecific competition; Tropical perennial grass. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000300170 |
| |
|
|
| Oliveira,Silas Maciel de; Pierozan Junior,Clovis; Lago,Bruno Cocco; Almeida,Rodrigo Estevam Munhoz de; Trivelin,Paulo Cesar Ocheuze; Favarin,José Laércio. |
| ABSTRACT: Soybean [Glycine max (L.) Merr.] grain yield is closely associated with the level of optimal nitrogen (N) supply, especially during the reproductive stages. Foliar fertilization with low rates of N have been considered as a strategy for furnishing additional N and enhancing grain yields. Field studies using 15N tracer were conducted over two growing seasons to investigate the impact of foliar N fertilization on grain yield, plant N content, the amount of N derived from fertilizer (NDFF) and N recovery efficiency (NRE). Four foliar N rates (0, 1300, 2600 and 3900 g ha−1) were supplied by two equal split applications at the R1 and R3 stages. Foliar N fertilization of soybean canopies did not affect grain yield, grain N content, shoot N content nor... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max (L.) Merr; Foliar N fertilization; 15N tracer; Foliar application; Nitrogen recovery efficiency. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001400305 |
| |
|
|
|
