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| Kurosawa,Railan do Nascimento Ferreira; Amaral Junior,Antonio Teixeira do; Vivas,Janieli Maganha Silva; Guimarães,Amanda Gonçalves; Miranda,Samila Barbosa; Dias,Vicente Mussi; Scapim,Carlos Alberto. |
| ABSTRACT Because of its multi-purpose nature, popcorn has sparked the interest of the World Trade Organization as regards fungal contamination by mycotoxins. However, no investigations have been conducted on popcorn for resistance of genotypes to ear rot. The aim of this study was to evaluate the potential of popcorn genotypes as to resistance to ear rot and rotten kernels, as an initial step for the implementation of a breeding program with the popcorn crop in Northern Rio de Janeiro State, Brazil. Thirty-seven accessions from different ecogeographic regions of Latin America were evaluated in 2 cultivation periods, in a randomized block design with 4 replications. We evaluated the incidence of rotten ears, incidence of rotten ears caused by Fusarium spp.,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Fusarium spp.; Genetic resistance. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000300378 |
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| Kurosawa,Railan do Nascimento Ferreira; Vivas,Marcelo; Amaral,Antonio Teixeira do; Ribeiro,Rodrigo Moreira; Miranda,Samila Barbosa; Pena,Guilherme Ferreira; Leite,Jhean Torres; Mora,Freddy. |
| ABSTRACT Compared with the common corn, popcorn shows greater susceptibility to pests and diseases occurrence, being the use of resistant cultivars the most efficient strategy. In this regard, Germplasm Banks deserve special attention because they contain accessions that can be used as sources of resistance in breeding programs. The State University of Northern Rio de Janeiro (UENF) maintains a popcorn Germplasm Bank with accessions from tropical and temperate countries, including Diversity Centers for the species. In this study, we investigated the performance of 37 popcorn accessions landraces, hybrids, and inbreed lines ― from the Germplasm Collection of UENF’s Popcorn Breeding Program with respect to the fungal leaf diseases northern leaf blight (NLB)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Northern leaf blight; Genetic resistance; Plant breeding. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100036 |
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| Santos,Adriano dos; Amaral Júnior,Antônio Teixeira do; Kurosawa,Railan do Nascimento Ferreira; Gerhardt,Ismael Fernando Schegoscheski; Fritsche Neto,Roberto. |
| ABSTRACT Nitrogen is essential for sustaining life on the planet, and it is the most important nutrient for obtaining high agricultural production. However, their use leads to the release of nitrous oxide with a global warming potential 296 times higher than the CO2 molecule, making it a challenge to reduce their use in agriculture. The objective of this research was to identify efficient popcorn inbred lines and responsive nitrogen use and exhibit a good expansion volume. For this, 29 inbred lines from the Germplasm Collection of Darcy Ribeiro North Fluminense State University (UENF) were evaluated at two contrasting levels of nitrogen availability (low and ideal) at two representative locations in the north and northwest of the state of Rio de Janeiro,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Multivariate analysis; Abiotic stress; G x E interaction.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000100022 |
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