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Registros recuperados : 75 | |
19. | | SILVA, L. P.; DEGENHARDT, J.; UENO, B.; BITTENCOURT, A. M. Caracterização morfológica e molecular de isolados de colletotrichum spp. provenientes de pessêgo, pitanga, banana, e erva-mate. In: CONGRESO NACIONAL DE LA SOCIEDAD URUGUAYA DE HORTIFRUTICULTURA, 11.; CONGRESO PANAMERICANO PROMOCIÓN DEL CONSUMO DE FRUTAS Y HORTALIZAS, 3., 2007, Montevideo. Resumos... Montevideo : Sociedad Uruguaya de Hortifruticultura, 2007. 1 CD-ROM. Biblioteca(s): Embrapa Clima Temperado. |
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Registros recuperados : 75 | |
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Registro Completo
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
08/06/2015 |
Data da última atualização: |
08/06/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
ALVAREZ, R. de C. F.; HABERMANN, G.; CRUSCIOL, C. A. C.; NASCENTE, A. S.; RODRIGUES, J. D. |
Afiliação: |
RITA DE CÁSSIA FELIX ALVAREZ, UFMS; GUSTAVO HABERMANN, UNESP; CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP; ADRIANO STEPHAN NASCENTE, CNPAF; JOÃO DOMINGOS RODRIGUES, UNESP. |
Título: |
Leaf gas exchange and yield of three upland rice cultivars. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Bragantia, Campinas, v. 74, n. 1, p. 1-8, jan./mar. 2015. |
ISSN: |
1678-4499 |
DOI: |
10.1590/1678-4499.0322 |
Idioma: |
Inglês |
Conteúdo: |
Studies of physiological parameters associated with crop performance and growth in different groups of upland rice (Oryza sativa L.) may support plant breeding programs. We evaluated the role of gas exchange rates and dry matter accumulation (DMA) as traits responsible for yields in a traditional (cv. 'Caiapó'), intermediate (cv. 'Primavera') and modern (cv. 'Maravilha') upland rice cultivars. Leaf gas exchange rates, DMA, leaf area index (LAI), harvest indexes (HI) and yield components were measured on these genotypes in the field, under sprinkler irrigation. Panicles per m2 and DMA at flowering (FL) and heading, as well as CO2 assimilation rates (A) were similar across these cultivars. The highest yield was found in ?Primavera?, which may be explained by (i) a two-fold higher HI compared to the other cultivars, (ii) greater rates of DMA during spikelet formation and grain-filling, as well as (iii) a slow natural decrease of A in this cultivar, at the end of the season (between FL and maturation). |
Palavras-Chave: |
Índice de colheita; Intercâmbio de gases. |
Thesagro: |
Arroz; Fisiologia; Gas; Oryza sativa. |
Thesaurus NAL: |
Gas exchange; Harvest index; Rice. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/125075/1/cnpaf-2015.pdf
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Marc: |
LEADER 01836naa a2200301 a 4500 001 2017076 005 2015-06-08 008 2015 bl uuuu u00u1 u #d 022 $a1678-4499 024 7 $a10.1590/1678-4499.0322$2DOI 100 1 $aALVAREZ, R. de C. F. 245 $aLeaf gas exchange and yield of three upland rice cultivars.$h[electronic resource] 260 $c2015 520 $aStudies of physiological parameters associated with crop performance and growth in different groups of upland rice (Oryza sativa L.) may support plant breeding programs. We evaluated the role of gas exchange rates and dry matter accumulation (DMA) as traits responsible for yields in a traditional (cv. 'Caiapó'), intermediate (cv. 'Primavera') and modern (cv. 'Maravilha') upland rice cultivars. Leaf gas exchange rates, DMA, leaf area index (LAI), harvest indexes (HI) and yield components were measured on these genotypes in the field, under sprinkler irrigation. Panicles per m2 and DMA at flowering (FL) and heading, as well as CO2 assimilation rates (A) were similar across these cultivars. The highest yield was found in ?Primavera?, which may be explained by (i) a two-fold higher HI compared to the other cultivars, (ii) greater rates of DMA during spikelet formation and grain-filling, as well as (iii) a slow natural decrease of A in this cultivar, at the end of the season (between FL and maturation). 650 $aGas exchange 650 $aHarvest index 650 $aRice 650 $aArroz 650 $aFisiologia 650 $aGas 650 $aOryza sativa 653 $aÍndice de colheita 653 $aIntercâmbio de gases 700 1 $aHABERMANN, G. 700 1 $aCRUSCIOL, C. A. C. 700 1 $aNASCENTE, A. S. 700 1 $aRODRIGUES, J. D. 773 $tBragantia, Campinas$gv. 74, n. 1, p. 1-8, jan./mar. 2015.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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