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Registros recuperados: 7
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Can genetic progress for drought tolerance in popcorn be achieved by indirect selection? Repositório Alice
KAMPHORST, S. H.; AMARAL JÚNIOR, A. T. do; LIMA, V. J. de; GUIMARAES, L. J. M.; SCHMITT, K. F. M.; LEITE, J. T.; SANTOS, P. H. A. D.; CHAVES, M. M.; MAFRA, G. S.; SANTOS JÚNIOR, D. R. dos; CRUZ, C. D.; CAMPOSTRINI, E..
The objective of this study was to estimate the direct and indirect eects of agricultural, morphological, physiological, and root traits of popcorn lines, under two conditions of water supply: full irrigation (FI) and drought stress (DS).Acomplete randomized block design with three replications was used to evaluate the following traits: expanded popcorn volume per hectare (EPV), 100-grain weight (100GW), mean ear length, mean ear diameter, number of grains per row (NGR), prolificacy (PRO), anthesis to silking interval, tassel length, number of tassel branches, plant height, shoot dry matter, green index (SPAD), and canopy temperature depression (CTD), root angle (RA), tap root volume (TRV), and crown root volume (CRV). Analyses of variance and path...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Tolerância a seca; Seleção indireta; Milho Pipoca; Resistência a Seca; Genética Vegetal.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1121628
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Combined dominance and additive gene effects in trait inheritance of drought-stressed and full irrigated popcorn. Repositório Alice
LIMA, V. L. de; AMARAL JÚNIOR, A. T. do; KAMPHORST, S. H.; BISPO, R. B.; LEITE, J. T.; SANTOS, T. de O.; SCHMITT, K. F. M.; CHAVES, M. M.; OLIVEIRA, U. A. de; SANTOS, P. H. A. D.; GONÇALVES, G. M. B.; KHAN, S.; GUIMARAES, L. J. M..
To define breeding strategies, the understanding of trait inheritance is critical. The objective of this study was to determine the inheritance of popcorn under different water regimes. To this end, Hayman's diallel methodology was used, with 8 parents and 28 hybrids. The experiment was carried out under well-watered conditions (WW) and water stress (WS). For popping expansion (PE) under both water regimes, the effects of complete dominance and greater importance of the components associated with the dominance effects were observed. In contrast, the number of dominant genes was zero and the determination coefficient in the narrow sense was >50%; additive effects were also present. For the number of grains per row (GR), ear length (EL), and grain yield...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Tolerância à seca; Milho Pipoca; Stress; Melhoramento Vegetal.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1114869
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Cultivares especiais de milho da Embrapa. Infoteca-e
MEIRELLES, W. F.; GUIMARAES, P. E. de O..
bitstream/item/193033/1/Cultivares-especiais.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Milho Doce; Milho Pipoca; Variedade; Agricultura Familiar; Corn; Popcorn; Sweetcorn; Family farms.
Ano: 2018 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1106206
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Cultivares especiais de milho da Embrapa. Infoteca-e
MEIRELLES, W. F.; GUIMARAES, P. E. de O..
bitstream/item/182999/1/72-79.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Milho Doce; Milho Pipoca; Variedade; Agricultura Familiar; Corn; Popcorn; Sweetcorn; Family farms.
Ano: 2018 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1095715
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Genetic effects on the efficiency and responsiveness to phosphorus use in popcorn as estimated by diallel analysis. Repositório Alice
GERHARDT, I. F. S.; AMARAL JÚNIOR, A. T. do; PENA, G. F.; GUIMARAES, L. J. M.; LIMA, V. J. de; VIVAS, M.; SANTOS, P. H. A. D.; FERREIRA, F. R. A.; FREITAS, M. S. M.; KAMPHORST, S. H..
Agricultural expansion and the need for sustainable cultivation are challenges faced by researchers involved in the generation of new cultivars that can adapt to abiotic stress. Knowledge of the genetic effects of characteristics related to efficiency and responsiveness to phosphorus use must be considered when implementing methods to obtain better genotypes. The aim of this study was to characterize and select popcorn hybrids based on their efficiency and responsiveness to phosphorus use, and estimate their combining abilities and genetic effects via diallel analysis to implement improvement programs for sustainable agriculture. Eight contrasting inbred lines were used to obtain simple hybrids for diallel analysis. Twenty-eight diallelic hybrids plus the...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Análise dialélica; Milho Pipoca; Fósforo; Agricultura Sustentável; Melhoramento Genético Vegetal.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1109459
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MILHO Pipoca Roxa. Infoteca-e
bitstream/item/204746/1/Pipoca-Roxa.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Zea Mays; Milho Pipoca; Variedade.
Ano: 2019 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1114179
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Relative importance of gene effects for nitrogen-use efficiency in popcorn. Repositório Alice
SANTOS, A.; AMARAL JÚNIOR, A. T. do; FRITSCHE-NETO, R.; KAMPHORST, S. H.; FERREIRA, F. R.; AMARAL, J. F. T. do; VIVAS, J. M. S.; SANTOS, P. H. A. D.; LIMA V. J. de; KHAN, S.; SCHMITT, K. F. M.; LEITE, J. T.; SANTOS JUNIOR, D. R. dos; BISPO, R. B.; SANTOS, T. de O.; OLIVEIRA, U. A. de; GUIMARAES, L. J. M.; RODRIGUEZ, O..
The objective of this study was to evaluate the effects of additive and non-additive genes on the efficiency of nitrogen (N) use and N responsiveness in inbred popcorn lines. The parents, hybrids and reciprocal crosses were evaluated in a 10x10 triple lattice design at two sites and two levels of N availability. To establish different N levels in the two experiments, fertilization was carried out at sowing, according to soil analysis reports. However, for the experiments with ideal nitrogen availability, N was sidedressed according to the crop requirement, whereas for the N-poor experiments sidedressing consisted of 30% of that applied in the N-rich environment. Two indices were evaluated, the Harmonic Mean of the Relative Performance (HMRP) and Agronomic...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Gene; Nitrogênio; Milho Pipoca; Linhagem.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1113056
Registros recuperados: 7
Primeira ... 1 ... Última
 

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