| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
|
Data corrente: |
01/02/2011 |
|
Data da última atualização: |
08/02/2011 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
SOUZA, K. A. de; SOUZA, A. da S.; SANTOS, V. da S. |
|
Afiliação: |
Kelly Anselmo de Souza, UFRB; ANTONIO DA SILVA SOUZA, CNPMF; VANDERLEI DA SILVA SANTOS, CNPMF. |
|
Título: |
Utilização da multiplicação rápida na propagação da mandioca (Manihot esculenta Crantz). |
|
Ano de publicação: |
2010 |
|
Fonte/Imprenta: |
In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 4., 2010, Cruz das Almas. [Anais...]. Cruz das Almas: Embrapa Mandioca e Fruticultura, 2010. (Embrapa Mandioca e Fruticultura. Documentos, 190). 1 CD-ROM. |
|
Idioma: |
Português |
|
Notas: |
PDF. 055. |
|
Conteúdo: |
A mandioca (Manihot esculenta Crantz) é uma espécie rústica, que possui a capacidade de produzir em regiões de solos pobres e com escassez de água.Entretanto, ela possui certas características que dificultam a sua propagação em larga escala num curto intervalo de tempo. Uma dessas características é a sua baixa taxa de multiplicação. Cada planta de mandioca pode produzir de 5 a 10 manivas de 20 cm, num período de 12 meses, ou seja, a sua taxa de propagação é de 1:5 a 1:10. A multiplicação rápida, desenvolvida pelo Centro Internacional de Agricultura Tropical (CIAT), na Colômbia, é um método simples e barato de multiplicação da mandioca. O aumento da taxa de multiplicação deve-se, em primeiro lugar, ao fato de que, as manivas para a multiplicação rápida são cortadas com duas a três gemas (2 a 5 cm, a depender da distância entre as gemas), enquanto as manivas para plantio têm cerca de sete gemas (em torno de 20 cm). E em segundo lugar, na multiplicação rápida, a maniva ao brotar, tem o broto cortado ao atingir o tamanho de 10 a 15 cm, e rebrota novamente, induzida pelas condições de umidade e temperatura elevadas do interior da câmara de propagação, enquanto na multiplicação convencional, a maniva de 20 cm é plantada no campo, e gerará no máximo quatro hastes. |
|
Palavras-Chave: |
Manivas; Multiplicação rápida; Taxa de multiplicação. |
|
Thesagro: |
Mandioca. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/26411/1/055-Kelly-Vanderlei-ok.pdf
|
|
Marc: |
LEADER 02060nam a2200193 a 4500
001 1875342
005 2011-02-08
008 2010 bl uuuu u00u1 u #d
100 1 $aSOUZA, K. A. de
245 $aUtilização da multiplicação rápida na propagação da mandioca (Manihot esculenta Crantz).
260 $aIn: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 4., 2010, Cruz das Almas. [Anais...]. Cruz das Almas: Embrapa Mandioca e Fruticultura, 2010. (Embrapa Mandioca e Fruticultura. Documentos, 190). 1 CD-ROM.$c2010
500 $aPDF. 055.
520 $aA mandioca (Manihot esculenta Crantz) é uma espécie rústica, que possui a capacidade de produzir em regiões de solos pobres e com escassez de água.Entretanto, ela possui certas características que dificultam a sua propagação em larga escala num curto intervalo de tempo. Uma dessas características é a sua baixa taxa de multiplicação. Cada planta de mandioca pode produzir de 5 a 10 manivas de 20 cm, num período de 12 meses, ou seja, a sua taxa de propagação é de 1:5 a 1:10. A multiplicação rápida, desenvolvida pelo Centro Internacional de Agricultura Tropical (CIAT), na Colômbia, é um método simples e barato de multiplicação da mandioca. O aumento da taxa de multiplicação deve-se, em primeiro lugar, ao fato de que, as manivas para a multiplicação rápida são cortadas com duas a três gemas (2 a 5 cm, a depender da distância entre as gemas), enquanto as manivas para plantio têm cerca de sete gemas (em torno de 20 cm). E em segundo lugar, na multiplicação rápida, a maniva ao brotar, tem o broto cortado ao atingir o tamanho de 10 a 15 cm, e rebrota novamente, induzida pelas condições de umidade e temperatura elevadas do interior da câmara de propagação, enquanto na multiplicação convencional, a maniva de 20 cm é plantada no campo, e gerará no máximo quatro hastes.
650 $aMandioca
653 $aManivas
653 $aMultiplicação rápida
653 $aTaxa de multiplicação
700 1 $aSOUZA, A. da S.
700 1 $aSANTOS, V. da S.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Acre. |
|
Data corrente: |
26/11/2013 |
|
Data da última atualização: |
06/07/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
RIGHI, C. A.; CAMPOE, O. C.; BERNARDES, M. S.; LUNZ, A. M. P.; PIEDADE, S. M. S.; PEREIRA, C. R. |
|
Afiliação: |
Ciro Abbud Righi, ESALQ; Otavio Camargo Campoe, IPEF; Marcos Silveira Bernardes, ESALQ; AURENY MARIA PEREIRA LUNZ, CPAF-AC; Sonia Maria Stefano Piedade, ESALQ; Carlos Rodrigues Pereira, ESALQ. |
|
Título: |
Infuence of rubber trees on leaf-miner damage to coffee plants in an agroforestry system. |
|
Ano de publicação: |
2013 |
|
Fonte/Imprenta: |
Agroforestry Systems, Columbia, v. 87, n. 6, p. 1351-1362, Dec. 2013. |
|
ISSN: |
0167-4366 (Print) / 1572-9680 (Online) |
|
DOI: |
10.1007/s10457-013-9642-9 |
|
Idioma: |
Inglês |
|
Notas: |
Published online: 5 October 2013. |
|
Conteúdo: |
The coffee leaf-miner (CLM) (Leucoptera coffeella Guérin-Mèneville; Lepidoptera: Lyonetiidae), the main pest of coffee plants, occurs widely throughout the Neotropics where it has a significant, negative economic and quantitative impact on coffee production. This study was conducted in a rubber tree/coffee plant interface that was influenced by the trees to a varying degrees depending on the location of the coffee plants, i.e. from beneath the rubber trees, extending through a range of distances from the edge of the tree plantation to end in a coffee monocrop field. The most severe damage inflicted on coffee plants by the CLM (number of mined leaves) from April, which marks the start of the water deficit period, until September 2003 was in the zone close to the rubber trees, whereas the damage inflicted on plants in the monocropped field was comparable to that on coffee plants grown directly beneath the rubber trees, which received about 25-40 % of the available irradiance (Ir-available irradiation at a certain position divided by the irradiation received in full sunlight, i.e. in the monocrop). From May until July damage caused by the CLM nearly doubled in each month. In midwinter (July), the damage decreased perceptibly from the tree edge toward the open field. From September onward, with the rising air temperatures CLM damage in the coffee monocrop started to increase. Based on these results, we conclude that coffee plants grown in the full sun incurred the most damage only at the end of winter, with warming air temperatures. Coffee plants grown in shadier locations (25-40 % Ir) were less damaged by the CLM, although a higher proportion of their leaves were mined. The rubber trees probably acted as a shelter during the cold autumn and winter seasons, leading to greater CLM damage over a distance outside the rubber tree plantation that was about equal to the height of the trees. Future studies should attempt to relate leaf hydric potential to pest attack in field conditions. More rigorous measurements of shade conditions could improve our understanding of the relationship of this factor to CLM attack. MenosThe coffee leaf-miner (CLM) (Leucoptera coffeella Guérin-Mèneville; Lepidoptera: Lyonetiidae), the main pest of coffee plants, occurs widely throughout the Neotropics where it has a significant, negative economic and quantitative impact on coffee production. This study was conducted in a rubber tree/coffee plant interface that was influenced by the trees to a varying degrees depending on the location of the coffee plants, i.e. from beneath the rubber trees, extending through a range of distances from the edge of the tree plantation to end in a coffee monocrop field. The most severe damage inflicted on coffee plants by the CLM (number of mined leaves) from April, which marks the start of the water deficit period, until September 2003 was in the zone close to the rubber trees, whereas the damage inflicted on plants in the monocropped field was comparable to that on coffee plants grown directly beneath the rubber trees, which received about 25-40 % of the available irradiance (Ir-available irradiation at a certain position divided by the irradiation received in full sunlight, i.e. in the monocrop). From May until July damage caused by the CLM nearly doubled in each month. In midwinter (July), the damage decreased perceptibly from the tree edge toward the open field. From September onward, with the rising air temperatures CLM damage in the coffee monocrop started to increase. Based on these results, we conclude that coffee plants grown in the full sun incurred the most damage on... Mostrar Tudo |
|
Palavras-Chave: |
Agroforestería; Coffee; Cultivo mixto; Minador de las hojas; Plagas de plantas; Rubber tree; Sistema Agroflorestal (SAF); Sistemas de sombra. |
|
Thesagro: |
Agrossilvicultura; Bicho mineiro; Cafe; Caucho; Coffea arábica; Consorciação de cultura; Cultivo Continuo; Hevea; Leucoptera coffeella; Monocultura; Performance; Perileucoptera Coffeella; Praga de planta; Seringueira; Sombreamento. |
|
Thesaurus NAL: |
Agroforestry; Continuous cropping; Leafminers; Mixed cropping; Plant pests; Shade agroforestry systems. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/93218/1/24770.pdf
|
|
Marc: |
LEADER 03774naa a2200565 a 4500
001 1972252
005 2021-07-06
008 2013 bl uuuu u00u1 u #d
022 $a0167-4366 (Print) / 1572-9680 (Online)
024 7 $a10.1007/s10457-013-9642-9$2DOI
100 1 $aRIGHI, C. A.
245 $aInfuence of rubber trees on leaf-miner damage to coffee plants in an agroforestry system.$h[electronic resource]
260 $c2013
500 $aPublished online: 5 October 2013.
520 $aThe coffee leaf-miner (CLM) (Leucoptera coffeella Guérin-Mèneville; Lepidoptera: Lyonetiidae), the main pest of coffee plants, occurs widely throughout the Neotropics where it has a significant, negative economic and quantitative impact on coffee production. This study was conducted in a rubber tree/coffee plant interface that was influenced by the trees to a varying degrees depending on the location of the coffee plants, i.e. from beneath the rubber trees, extending through a range of distances from the edge of the tree plantation to end in a coffee monocrop field. The most severe damage inflicted on coffee plants by the CLM (number of mined leaves) from April, which marks the start of the water deficit period, until September 2003 was in the zone close to the rubber trees, whereas the damage inflicted on plants in the monocropped field was comparable to that on coffee plants grown directly beneath the rubber trees, which received about 25-40 % of the available irradiance (Ir-available irradiation at a certain position divided by the irradiation received in full sunlight, i.e. in the monocrop). From May until July damage caused by the CLM nearly doubled in each month. In midwinter (July), the damage decreased perceptibly from the tree edge toward the open field. From September onward, with the rising air temperatures CLM damage in the coffee monocrop started to increase. Based on these results, we conclude that coffee plants grown in the full sun incurred the most damage only at the end of winter, with warming air temperatures. Coffee plants grown in shadier locations (25-40 % Ir) were less damaged by the CLM, although a higher proportion of their leaves were mined. The rubber trees probably acted as a shelter during the cold autumn and winter seasons, leading to greater CLM damage over a distance outside the rubber tree plantation that was about equal to the height of the trees. Future studies should attempt to relate leaf hydric potential to pest attack in field conditions. More rigorous measurements of shade conditions could improve our understanding of the relationship of this factor to CLM attack.
650 $aAgroforestry
650 $aContinuous cropping
650 $aLeafminers
650 $aMixed cropping
650 $aPlant pests
650 $aShade agroforestry systems
650 $aAgrossilvicultura
650 $aBicho mineiro
650 $aCafe
650 $aCaucho
650 $aCoffea arábica
650 $aConsorciação de cultura
650 $aCultivo Continuo
650 $aHevea
650 $aLeucoptera coffeella
650 $aMonocultura
650 $aPerformance
650 $aPerileucoptera Coffeella
650 $aPraga de planta
650 $aSeringueira
650 $aSombreamento
653 $aAgroforestería
653 $aCoffee
653 $aCultivo mixto
653 $aMinador de las hojas
653 $aPlagas de plantas
653 $aRubber tree
653 $aSistema Agroflorestal (SAF)
653 $aSistemas de sombra
700 1 $aCAMPOE, O. C.
700 1 $aBERNARDES, M. S.
700 1 $aLUNZ, A. M. P.
700 1 $aPIEDADE, S. M. S.
700 1 $aPEREIRA, C. R.
773 $tAgroforestry Systems, Columbia$gv. 87, n. 6, p. 1351-1362, Dec. 2013.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Acre (CPAF-AC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
