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| Freitas,Joelson André de; Silva,Enilson de Barros; Fallieri,Joel; Lanza,Marcelo Abreu; Faria,Renato Soares de; Silva,Petrônio José da. |
| Dados da altura individual de dez plantas, obtidos de dez experimentos instalados em blocos casualizados com quatro repetições e quatro cultivares de algodoeiro herbáceo, foram estudados, para determinação do número mínimo de plantas/parcela, necessárias para caracterização da altura média de plantas de algodoeiro herbáceo. Foram estudados cinco tamanhos de amostra na parcela, cada uma, contendo 2, 4, 6, 8 e 10 plantas. Os coeficientes de variação experimental e amostral e as significâncias observadas nas análises de variâncias, indicaram que parcelas contendo seis ou mais plantas, permitiram boa caracterização do porte médio das variedades de algodoeiro testadas. Os resultados sugerem, portanto que, no processo de caracterização da altura média do... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amostragem; Coeficiente de variação. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782001000400004 |
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| Luz,José Magno Queiroz; Machado,Daniel Lucas Magalhães; Maciel,Gabriel Mascarenhas; Freitas,Joelson André de; Oliveira,Roberta Camargos de. |
| ABSTRACT The commercial use of onion hybrids is preferred by producers. In contrast, the production of hybrid onion seeds is extremely inefficient. This is due to the use of lineages obtained by successive self-fertilizations assuming the effect of inbreeding depression per se. Therefore, it is necessary to understand new alternatives to reduce the effect of inbreeding depression in the strains. The objective of this study was to evaluate possible differences in polymorphism and levels of heterozygosity of strains obtained from intercrossed and self-fertilized plants. Twelve onion populations belonging to Bayer’s breeding program (Granex, IPA-1, IPA-2 and IPA-3) were used, obtained by self-fertilization of one plant, intercrossing of two plants or... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allium cepa; Hybrid; Onion polymorphism; Genotyping; Primers. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300274 |
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| Dias,Túlio José Mendes; Maluf,Wilson Roberto; Faria,Marcos Ventura; Freitas,Joelson André de; Gomes,Luiz Antonio Augusto; Resende,Juliano Tadeu Vilela; Azevedo,Sebastião Márcio de. |
| Post-harvest shelf life of tomato fruit may be increased by deploying mutant alleles which affect the natural ripening process and/or by a favorable genotypic background. Among the several ripening mutant genes, alcobaça (alc) has proved to be highly efficient in increasing shelf life of commercial tomato fruits, especially in heterozygosis, a state at which no limiting deleterious effects upon fruit color occur. The effects of heterozygosity in the alcobaça locus (alc+/alc) on yield and fruit quality traits of tomato hybrids with three genotypic backgrounds. We evaluated three pairs of hybrids obtained from crosses between the near-isogenic pollen source lines Flora-Dade (alc+/alc+) and TOM-559 (alc/alc), and three maternal lines (Stevens, NC-8276 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Alcobaça; Ripening mutant; Long shelf-life. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000200010 |
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