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| Ribeiro,Aliny Simony; Toledo,José Francisco Ferraz de; Arias,Carlos Alberto Arrabal; Godoy,Cláudia Vieira; Soares,Rafael Moreira; Moreira,José Ubirajara Vieira; Pierozzi,Pedro Henrique Braga; Vidigal,Maria Celeste Gonçalves; Oliveira,Marcelo Fernandes de. |
| Soybean is one of the most important crops in Brazil and continuously generates demands for production technologies, such as cultivars resistant to diseases. In recent years, the Asian rust fungus (Phakopsora pachyrhizi Syd. & P. Syd 1914) has caused severe yield losses and the development of resistant cultivars is the best means of control. Understanding the genetic control and estimating parameters associated with soybean (Glycine max) resistance to P. pachyrhizi will provide essential information for cultivar selection. We investigated quantitative genetic control of P. pachyrhizi and estimated parameters associated to soybean yield in the absence and presence of this phytopathogen. Six cultivars and their 15 diallel derived F2 and F3... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic components; Genetic potential; Yield prediction. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000100018 |
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| Kvitschal,Marcus Vinícius; Mantine,Evanildo; Vidigal Filho,Pedro Soares; Vidigal,Maria Celeste Gonçalves; Scapim,Carlos Alberto. |
| Resumo O objetivo deste estudo foi avaliar o efeito do arranjo espacial de plantas na produção e na massa de mil grãos de dois híbridos simples de milho, na região Norte do Paraná. Os tratamentos constituíram-se da combinação de espaçamentos entre linhas de 0,45 e 0,90 m, densidades populacionais de 45.000, 60.000, 75.000 e 90.000 plantas ha-1, híbridos DKB 234 e DKB 214, em dois anos de avaliação (2005/06 e 2006/07). Os experimentos foram delineados em blocos completos ao acaso, em esquema fatorial 2 x 2 x 4 x 2, com quatro repetições. O híbrido DKB 234 apresentou maior produtividade de grãos, enquanto que o híbrido DKB 214 apresentou maior massa de mil grãos. Em geral, a redução do espaçamento entre linhas de 0,90 para 0,45 m pouco afetou a produção de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L; Espaçamento entre linhas; Densidade populacional; Rendimento de grãos. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902010000100122 |
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| Sagrilo,Edvaldo; Vidigal Filho,Pedro Soares; Pequeno,Manoel Genildo; Scapim,Carlos Alberto; Vidigal,Maria Celeste Gonçalves; Diniz,Sérgio Paulo Severo de Souza; Modesto,Elisa Cristina; Kvitschal,Marcus Vinícius. |
| The effect of harvest period on the quality of storage roots and leaves of cassava cultivars was determined in an experiment carried out in a randomized complete block design with four replications in a split plot scheme, with five cultivars in the plots and ten harvest times in the subplots. The IAC 13 cultivar had the highest rate of dry matter accumulation in the storage roots and the Mico cultivar the lowest. The period of least dry matter content in the storage roots occurred later for the Fécula Branca, Mico and IAC 14 cultivars, and the minimum starch content in the storage roots occurred later for the Fécula Branca and Mico cultivars. In general, the IAC 13, IAC 14 and Fécula Branca cultivars had higher dry matter content in the storage roots,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Harvest period; Cultivars; Dry matter content; Starch content; Leaf protein. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200022 |
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| Sagrilo,Edvaldo; Vidigal Filho,Pedro Soares; Pequeno,Manoel Genildo; Vidigal,Maria Celeste Gonçalves; Scapim,Carlos Alberto; Kvitschal,Marcus Vinícius; Maia,Rogério Rui; Rimoldi,Fabrício. |
| The objective of this work was to study the leaf production pattern and dry matter distribution in cassava during the second plant cycle. The completely randomized experimental design with four replications was used, with five cultivars in the main plots and ten harvest times in the sub-plots. Foliage production was affected by plant age, being higher in hot periods. Leaf blades and petioles dry matter content presented a linear increase due to a progressive decrease in the amount of young leaves and ontogenetic factors. The stems provided, temporarily, carbohydrates to the plant re-growth, delaying the availability and use of storage roots dry matter. The dry matter content in the storage roots was lower during the vegetative and higher during rest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta Crantz; Harvesting period; Foliage production; Dry matter distribution. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700019 |
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