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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
26/12/2001 |
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Data da última atualização: |
04/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; BARBOSA FILHO, M. P. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; MOREL PEREIRA BARBOSA FILHO, CNPAF. |
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Título: |
Nitrogen use efficiency in lowland rice genotypes. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 32, n. 13/14, p. 2079-2089, 2001. |
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DOI: |
10.1081/CSS-120000270 |
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Idioma: |
Inglês |
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Conteúdo: |
Nitrogen (N) is one of the most yield-limiting nutrients in lowland rice production around the world. Use of N efficient genotypes is an important complementary strategy in improving rice yield and reducing cost of production. A greenhouse experiment was conducted at the Embrapa Rice & Beans, Santo Antonio de Goiás, Brazil, with the objective to evaluate N use efficiency of eight lowland (Oryza sativa L.) genotypes. The soil used in the experiment was an Inceptisol and two N levels used were without N application (low level) and an application of 304 mg N kg-1 of soil (high level). Grain yield and yield components and N uptake parameters were significantly affected by genotype and N treatments except the N uptake in shoot. On the basis of N-use efficiency (mg grain weight/mg N accumulated in shoot and grain) and grain yield at zero N, genotypes were classified as efficient and responsive (ER), efficient and nonresponsive (ENR), nonefficient and responsive (NER), and nonefficient and nonresponsive (NENR). Genotypes Rio Formoso, CNA 7550, and CNA 7556 were classified as ER, and genotypes Javaé and CNA 6343 were classified as ENR. In the group, NER was classified genotype CNA 7857. In the group, NENR were falled genotypes CNA 8319 and CNA 8619. From a practical point of view, genotypes which produce high grain yield in a low level of N and respond well to added N are the most desirable because they are able to express their high yield potential in a wide range of N environment. Correlation analysis showed that shoot dry weight, number of panicles, number of grains per panicle, grain harvest index, N uptake in shoot and grain, N harvest index, and N use efficiency having significant positive association with grain yield. MenosNitrogen (N) is one of the most yield-limiting nutrients in lowland rice production around the world. Use of N efficient genotypes is an important complementary strategy in improving rice yield and reducing cost of production. A greenhouse experiment was conducted at the Embrapa Rice & Beans, Santo Antonio de Goiás, Brazil, with the objective to evaluate N use efficiency of eight lowland (Oryza sativa L.) genotypes. The soil used in the experiment was an Inceptisol and two N levels used were without N application (low level) and an application of 304 mg N kg-1 of soil (high level). Grain yield and yield components and N uptake parameters were significantly affected by genotype and N treatments except the N uptake in shoot. On the basis of N-use efficiency (mg grain weight/mg N accumulated in shoot and grain) and grain yield at zero N, genotypes were classified as efficient and responsive (ER), efficient and nonresponsive (ENR), nonefficient and responsive (NER), and nonefficient and nonresponsive (NENR). Genotypes Rio Formoso, CNA 7550, and CNA 7556 were classified as ER, and genotypes Javaé and CNA 6343 were classified as ENR. In the group, NER was classified genotype CNA 7857. In the group, NENR were falled genotypes CNA 8319 and CNA 8619. From a practical point of view, genotypes which produce high grain yield in a low level of N and respond well to added N are the most desirable because they are able to express their high yield potential in a wide range of N environment.... Mostrar Tudo |
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Thesagro: |
Arroz; Cerrado; Genótipo; Nitrogênio; Oryza Sativa. |
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Thesaurus Nal: |
nitrogen; rice. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02388naa a2200229 a 4500
001 1209184
005 2022-04-04
008 2001 bl uuuu u00u1 u #d
024 7 $a10.1081/CSS-120000270$2DOI
100 1 $aFAGERIA, N. K.
245 $aNitrogen use efficiency in lowland rice genotypes.$h[electronic resource]
260 $c2001
520 $aNitrogen (N) is one of the most yield-limiting nutrients in lowland rice production around the world. Use of N efficient genotypes is an important complementary strategy in improving rice yield and reducing cost of production. A greenhouse experiment was conducted at the Embrapa Rice & Beans, Santo Antonio de Goiás, Brazil, with the objective to evaluate N use efficiency of eight lowland (Oryza sativa L.) genotypes. The soil used in the experiment was an Inceptisol and two N levels used were without N application (low level) and an application of 304 mg N kg-1 of soil (high level). Grain yield and yield components and N uptake parameters were significantly affected by genotype and N treatments except the N uptake in shoot. On the basis of N-use efficiency (mg grain weight/mg N accumulated in shoot and grain) and grain yield at zero N, genotypes were classified as efficient and responsive (ER), efficient and nonresponsive (ENR), nonefficient and responsive (NER), and nonefficient and nonresponsive (NENR). Genotypes Rio Formoso, CNA 7550, and CNA 7556 were classified as ER, and genotypes Javaé and CNA 6343 were classified as ENR. In the group, NER was classified genotype CNA 7857. In the group, NENR were falled genotypes CNA 8319 and CNA 8619. From a practical point of view, genotypes which produce high grain yield in a low level of N and respond well to added N are the most desirable because they are able to express their high yield potential in a wide range of N environment. Correlation analysis showed that shoot dry weight, number of panicles, number of grains per panicle, grain harvest index, N uptake in shoot and grain, N harvest index, and N use efficiency having significant positive association with grain yield.
650 $anitrogen
650 $arice
650 $aArroz
650 $aCerrado
650 $aGenótipo
650 $aNitrogênio
650 $aOryza Sativa
700 1 $aBARBOSA FILHO, M. P.
773 $tCommunications in Soil Science and Plant Analysis$gv. 32, n. 13/14, p. 2079-2089, 2001.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
08/06/2020 |
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Data da última atualização: |
12/08/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
GARCEZ, B. S.; ALVES, A. A.; OLIVEIRA, M. E. de; MOREIRA FILHO, M. A.; AZEVEDO, D. M. M. R.; LACERDA, M. da S. B. |
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Afiliação: |
Bruno Spindola Garcez, IFCE; Arnaud Azevêdo Alves, UFPI; Maria Elizabete de Oliveira, UFPI; Miguel Arcanjo Moreira Filho, UFPI; DANIELLE MARIA MACHADO R AZEVEDO, CPAMN; Marlúcia da Silva Bezerra Lacerda, IFCE. |
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Título: |
Nutrient metabolism and ingestive behavior of goats fed diets containing palm tree fruit. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Revista Ciência Agronômica, v. 51, n. 2, e20196608, 2020. |
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ISSN: |
1806-6690 |
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DOI: |
10.5935/1806-6690.20200029 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective was to evaluate the nutrient metabolism and ingestive behavior of goats fed diets containing fruits of Carnauba and Tucum palm trees, abundant in the Northeast region with fruiting in the dry season and use as alternative food for ruminants. For this end, 21 goats fed three diets, one control and two with carnauba or tucum fruits, in a completely randomized design. We determined nutrient intake through total collection of leftovers, faces and urine, as well as energy and nitrogen balance. Ingestive behavior was assessed by visual observations every 5 min for 24 h. There was a reduction in dry matter intake of 0.183 and 0.223 kg/day for diets containing tucum and carnauba fruits, respectively. The intake of digestible protein (78.04 gDP/day) and metabolizable energy (2.51 McalME/day) of the diet containing tucum fruits met the nutritional requirements of the animals, besides resulting in nitrogen balance above 60% and increase of 0.57 Mcal/kgDM of digestible energy of the diets. Diets containing fruits of carnauba required a longer rumination (453.65 min/day), associated with the higher fiber content in their composition. The inclusion of carnauba and tucum fruits in diets composed of corn, soybean and Tifton 85 hay for growing goats promotes a reduction in dry matter intake due to the low quality of the fiber of these fruits. However, the diets containing tucum fruits met the nutritional requirements of goats regarding digestible protein and metabolizable energy, suggesting the use of this alternative food for this category. MenosThe objective was to evaluate the nutrient metabolism and ingestive behavior of goats fed diets containing fruits of Carnauba and Tucum palm trees, abundant in the Northeast region with fruiting in the dry season and use as alternative food for ruminants. For this end, 21 goats fed three diets, one control and two with carnauba or tucum fruits, in a completely randomized design. We determined nutrient intake through total collection of leftovers, faces and urine, as well as energy and nitrogen balance. Ingestive behavior was assessed by visual observations every 5 min for 24 h. There was a reduction in dry matter intake of 0.183 and 0.223 kg/day for diets containing tucum and carnauba fruits, respectively. The intake of digestible protein (78.04 gDP/day) and metabolizable energy (2.51 McalME/day) of the diet containing tucum fruits met the nutritional requirements of the animals, besides resulting in nitrogen balance above 60% and increase of 0.57 Mcal/kgDM of digestible energy of the diets. Diets containing fruits of carnauba required a longer rumination (453.65 min/day), associated with the higher fiber content in their composition. The inclusion of carnauba and tucum fruits in diets composed of corn, soybean and Tifton 85 hay for growing goats promotes a reduction in dry matter intake due to the low quality of the fiber of these fruits. However, the diets containing tucum fruits met the nutritional requirements of goats regarding digestible protein and metabolizable energ... Mostrar Tudo |
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Palavras-Chave: |
Bactris setosa; Copernicia prunifera. |
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Thesagro: |
Alimento Alternativo; Balanço de Energia; Matéria Seca. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/213842/1/NutrientMetabolismIngestiveGoatsRCA2020.pdf
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Marc: |
LEADER 02379naa a2200265 a 4500
001 2123146
005 2020-08-12
008 2020 bl uuuu u00u1 u #d
022 $a1806-6690
024 7 $a10.5935/1806-6690.20200029$2DOI
100 1 $aGARCEZ, B. S.
245 $aNutrient metabolism and ingestive behavior of goats fed diets containing palm tree fruit.$h[electronic resource]
260 $c2020
520 $aThe objective was to evaluate the nutrient metabolism and ingestive behavior of goats fed diets containing fruits of Carnauba and Tucum palm trees, abundant in the Northeast region with fruiting in the dry season and use as alternative food for ruminants. For this end, 21 goats fed three diets, one control and two with carnauba or tucum fruits, in a completely randomized design. We determined nutrient intake through total collection of leftovers, faces and urine, as well as energy and nitrogen balance. Ingestive behavior was assessed by visual observations every 5 min for 24 h. There was a reduction in dry matter intake of 0.183 and 0.223 kg/day for diets containing tucum and carnauba fruits, respectively. The intake of digestible protein (78.04 gDP/day) and metabolizable energy (2.51 McalME/day) of the diet containing tucum fruits met the nutritional requirements of the animals, besides resulting in nitrogen balance above 60% and increase of 0.57 Mcal/kgDM of digestible energy of the diets. Diets containing fruits of carnauba required a longer rumination (453.65 min/day), associated with the higher fiber content in their composition. The inclusion of carnauba and tucum fruits in diets composed of corn, soybean and Tifton 85 hay for growing goats promotes a reduction in dry matter intake due to the low quality of the fiber of these fruits. However, the diets containing tucum fruits met the nutritional requirements of goats regarding digestible protein and metabolizable energy, suggesting the use of this alternative food for this category.
650 $aAlimento Alternativo
650 $aBalanço de Energia
650 $aMatéria Seca
653 $aBactris setosa
653 $aCopernicia prunifera
700 1 $aALVES, A. A.
700 1 $aOLIVEIRA, M. E. de
700 1 $aMOREIRA FILHO, M. A.
700 1 $aAZEVEDO, D. M. M. R.
700 1 $aLACERDA, M. da S. B.
773 $tRevista Ciência Agronômica$gv. 51, n. 2, e20196608, 2020.
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