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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
06/05/2014 |
Data da última atualização: |
26/05/2014 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FAGERIA, N. K. |
Afiliação: |
NAND KUMAR FAGERIA, CNPAF. |
Título: |
Yield and yield components and phosphorus use efficiency of lowland rice genotypes. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Journal of Plant Nutrition, New York, v. 37, n. 7, p. 979-989, June 2014. |
DOI: |
10.1080/01904167.2014.888735 |
Idioma: |
Inglês |
Conteúdo: |
Phosphorus deficiency is main constraints for lowland rice production in various rice producing regions of the world. A greenhouse experiment was conducted using lowland (Inceptisol) soil with the objective to determine response of seven lowland rice (Oryza sativa L.) genotypes to phosphorus fertilization and to evaluate their phosphorus (P) use efficiency. Phosphorus treatments included control (0 mg P kg−1) and 200 mg P kg−1 of soil. Plant height and shoot dry weight were significantly (P < 0.001) influenced by P treatments. Phosphorus X genotypes interaction was significant for shoot dry weight, indicating different response of genotypes under two P levels. At low P level, none of the genotypes produced grain yield, indicating original P level in the soil was too low for lowland rice yield. However, genotypes differed significantly in grain yield at high P level. Panicle number, panicle length, and thousand grains weight had a significant quadratic association with grain yield. However, spikelet sterility had a significant linear negative association with grain yield. The P use efficiency expressed as agronomic efficiency (AE), physiological efficiency (PE), agro-physiological efficiency (AP), apparent recovery efficiency (ARE), and utilization (UE) were significantly different among genotypes. These efficiencies were having significantly positive association with grain yield, with exception to ARE, indicating improving grain yield with improved P use efficiencies in rice. MenosPhosphorus deficiency is main constraints for lowland rice production in various rice producing regions of the world. A greenhouse experiment was conducted using lowland (Inceptisol) soil with the objective to determine response of seven lowland rice (Oryza sativa L.) genotypes to phosphorus fertilization and to evaluate their phosphorus (P) use efficiency. Phosphorus treatments included control (0 mg P kg−1) and 200 mg P kg−1 of soil. Plant height and shoot dry weight were significantly (P < 0.001) influenced by P treatments. Phosphorus X genotypes interaction was significant for shoot dry weight, indicating different response of genotypes under two P levels. At low P level, none of the genotypes produced grain yield, indicating original P level in the soil was too low for lowland rice yield. However, genotypes differed significantly in grain yield at high P level. Panicle number, panicle length, and thousand grains weight had a significant quadratic association with grain yield. However, spikelet sterility had a significant linear negative association with grain yield. The P use efficiency expressed as agronomic efficiency (AE), physiological efficiency (PE), agro-physiological efficiency (AP), apparent recovery efficiency (ARE), and utilization (UE) were significantly different among genotypes. These efficiencies were having significantly positive association with grain yield, with exception to ARE, indicating improving grain yield with improved P use efficien... Mostrar Tudo |
Thesagro: |
Arroz; Fósforo; Genótipo; Nutriente; Oryza sativa. |
Thesaurus Nal: |
Grain yield; Harvest index; Nutrient use efficiency; Oxisols; Phosphorus; Rice. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02266naa a2200265 a 4500 001 1985627 005 2014-05-26 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1080/01904167.2014.888735$2DOI 100 1 $aFAGERIA, N. K. 245 $aYield and yield components and phosphorus use efficiency of lowland rice genotypes.$h[electronic resource] 260 $c2014 520 $aPhosphorus deficiency is main constraints for lowland rice production in various rice producing regions of the world. A greenhouse experiment was conducted using lowland (Inceptisol) soil with the objective to determine response of seven lowland rice (Oryza sativa L.) genotypes to phosphorus fertilization and to evaluate their phosphorus (P) use efficiency. Phosphorus treatments included control (0 mg P kg−1) and 200 mg P kg−1 of soil. Plant height and shoot dry weight were significantly (P < 0.001) influenced by P treatments. Phosphorus X genotypes interaction was significant for shoot dry weight, indicating different response of genotypes under two P levels. At low P level, none of the genotypes produced grain yield, indicating original P level in the soil was too low for lowland rice yield. However, genotypes differed significantly in grain yield at high P level. Panicle number, panicle length, and thousand grains weight had a significant quadratic association with grain yield. However, spikelet sterility had a significant linear negative association with grain yield. The P use efficiency expressed as agronomic efficiency (AE), physiological efficiency (PE), agro-physiological efficiency (AP), apparent recovery efficiency (ARE), and utilization (UE) were significantly different among genotypes. These efficiencies were having significantly positive association with grain yield, with exception to ARE, indicating improving grain yield with improved P use efficiencies in rice. 650 $aGrain yield 650 $aHarvest index 650 $aNutrient use efficiency 650 $aOxisols 650 $aPhosphorus 650 $aRice 650 $aArroz 650 $aFósforo 650 $aGenótipo 650 $aNutriente 650 $aOryza sativa 773 $tJournal of Plant Nutrition, New York$gv. 37, n. 7, p. 979-989, June 2014.
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Embrapa Arroz e Feijão (CNPAF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
Data corrente: |
15/12/2008 |
Data da última atualização: |
10/05/2024 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
OLIVEIRA, T. A. S.; CARVALHO, D. D. C.; BRAÚNA, L. M.; MELLO, S. C. M. |
Afiliação: |
T. A. S. OLIVEIRA, UNB; D. D. C. CARVALHO, UNB; LEONARDO MINARÉ BRAÚNA; SUELI CORREA MARQUES DE MELLO, EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA. |
Título: |
Studies of interaction between Trichoderma sp. and Fusarium oxysporum f. sp. phaseoli by scanning electron microscopy. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: SIMPÓSIO DE MICROSCOPIA NO CERRADO, 2008, Pirenópolis, GO. [Anais...] Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. 321 p. (Embrapa Recursos Genéticos e Biotecnologia, 265) Organizadoras: Ana Claudia Guerra de Araújo e Sônia Nair Báo. p. 98-100. |
Idioma: |
Inglês |
Thesagro: |
Fusarium; Microscópio; Trichoderma. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00770nam a2200169 a 4500 001 1190318 005 2024-05-10 008 2008 bl uuuu u01u1 u #d 100 1 $aOLIVEIRA, T. A. S. 245 $aStudies of interaction between Trichoderma sp. and Fusarium oxysporum f. sp. phaseoli by scanning electron microscopy. 260 $aIn: SIMPÓSIO DE MICROSCOPIA NO CERRADO, 2008, Pirenópolis, GO. [Anais...] Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. 321 p. (Embrapa Recursos Genéticos e Biotecnologia, 265) Organizadoras: Ana Claudia Guerra de Araújo e Sônia Nair Báo. p. 98-100.$c2008 650 $aFusarium 650 $aMicroscópio 650 $aTrichoderma 700 1 $aCARVALHO, D. D. C. 700 1 $aBRAÚNA, L. M. 700 1 $aMELLO, S. C. M.
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