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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
13/05/1998 |
Data da última atualização: |
13/05/1998 |
Autoria: |
CONCEICAO, A. J. |
Afiliação: |
EAUFBA. |
Título: |
Caracterizacao agronomica da mandioca |
Ano de publicação: |
1976 |
Fonte/Imprenta: |
Cruz das Almas: EMBRAPA-CNPMF, 1976 |
Páginas: |
p.135-143 |
Idioma: |
Português |
Notas: |
In: CURSO INTENSIVO NACIONAL DE MANDIOCA; ASPECTOS GERAIS; ECONOMICOS E INDUSTRIAIS, 1., 1976, Cruz das Almas, BA. |
Conteúdo: |
A mandioca e o aipim pertencem a uma unica especie - Manihot esculenta Crantz), antes classificados, respectivamente, como M. utilissima Pohl e M. pal,ata Muell. Arg., M. aipi Pohl ou M. dulcis Pax. Os caracteres morfologicos da planta sao muito semelhantes, sendo que a diferenca fundamental que existe entre essas duas formas reside na maior riqueza de acido cianidrico nas raizes da mandioca. mesmo esse carater nao e muito seguro, pois, conforme opiniao de varios autores, ele e influenciado pela natureza do solo e do clima, altitude, alem do metodo de cultivo, idade da planta, etc. Tambem, a descendencia sexuada da planta pode apresentar os mais variados caracteres, comuns a especie. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01148naa a2200145 a 4500 001 1645608 005 1998-05-13 008 1976 bl uuuu u00u1 u #d 100 1 $aCONCEICAO, A. J. 245 $aCaracterizacao agronomica da mandioca 260 $c1976 300 $ap.135-143 500 $aIn: CURSO INTENSIVO NACIONAL DE MANDIOCA; ASPECTOS GERAIS; ECONOMICOS E INDUSTRIAIS, 1., 1976, Cruz das Almas, BA. 520 $aA mandioca e o aipim pertencem a uma unica especie - Manihot esculenta Crantz), antes classificados, respectivamente, como M. utilissima Pohl e M. pal,ata Muell. Arg., M. aipi Pohl ou M. dulcis Pax. Os caracteres morfologicos da planta sao muito semelhantes, sendo que a diferenca fundamental que existe entre essas duas formas reside na maior riqueza de acido cianidrico nas raizes da mandioca. mesmo esse carater nao e muito seguro, pois, conforme opiniao de varios autores, ele e influenciado pela natureza do solo e do clima, altitude, alem do metodo de cultivo, idade da planta, etc. Tambem, a descendencia sexuada da planta pode apresentar os mais variados caracteres, comuns a especie. 773 $tCruz das Almas: EMBRAPA-CNPMF, 1976
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
20/02/2013 |
Data da última atualização: |
09/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
AUAD, A. M.; FONSECA, M. DAS G.; RESENDE, T. T. de; MADDALENA, I. S. DE C. P. |
Afiliação: |
ALEXANDER MACHADO AUAD, CNPGL; MARCY DAS GRAÇAS FONSECA, UFJF; TIAGO TEIXEIRA DE RESENDE, CNPGL; ITALO S. DE C. P. MADDALENA, UFJF. |
Título: |
Effect of climate chang on longevity and reproduction of Sipha Flava (Hemiptera: aphididae). |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Florida Entomologist, v.95, n.2, p. 433-444, 2012 |
DOI: |
https://doi.org/10.1653/024.095.0227 |
Idioma: |
Inglês |
Conteúdo: |
This study examined effects of elevated CO2 alone and in combination with elevated temperature on plant-aphid interactions. CO2 levels in which the host plants were grown affected the durations of some nymphal stadia, but not the survivorship within each instar or of all nymphal instars. Sipha flava (Forbes) (Hemiptera: Aphididae) adults kept under a constant high CO2 environment (500 ppm) and fed on plants grown under fluctuating CO2 levels (avg. 440 ppm) in a greenhouse had significantly greater longevity and greater reproduction than aphids fed on plants grown either under a constant high CO2 level (500 ppm) or under fluctuating CO2 levels (avg. 368 ppm). Nevertheless, no significant differences were observed in these biological parameters of S. flava that were kept individually in a greenhouse, regardless of the CO2 and temperatures under which the plants used to feed them were grown. However, populations of aphids kept and fed on plants grown in the greenhouse produced significantly more nymphs and adults than did those fed plants grown in a climate-controlled chamber under a constant high CO2 level (500 ppm). The combination of elevated CO2 and high temperature significantly decreased the duration of nymphal stadia, the longevity and reproductive success of S. flava but not nymphal survival. Adults produced fewer nymphs in an environment with elevated CO2 and high temperature than an environment with elevated CO2 and lower fluctuating temperatures. Based on these results, we concluded that S. flava populations will significantly decrease under future climatic conditions when both the concentration of atmospheric CO2 and temperature are projectedto increase. MenosThis study examined effects of elevated CO2 alone and in combination with elevated temperature on plant-aphid interactions. CO2 levels in which the host plants were grown affected the durations of some nymphal stadia, but not the survivorship within each instar or of all nymphal instars. Sipha flava (Forbes) (Hemiptera: Aphididae) adults kept under a constant high CO2 environment (500 ppm) and fed on plants grown under fluctuating CO2 levels (avg. 440 ppm) in a greenhouse had significantly greater longevity and greater reproduction than aphids fed on plants grown either under a constant high CO2 level (500 ppm) or under fluctuating CO2 levels (avg. 368 ppm). Nevertheless, no significant differences were observed in these biological parameters of S. flava that were kept individually in a greenhouse, regardless of the CO2 and temperatures under which the plants used to feed them were grown. However, populations of aphids kept and fed on plants grown in the greenhouse produced significantly more nymphs and adults than did those fed plants grown in a climate-controlled chamber under a constant high CO2 level (500 ppm). The combination of elevated CO2 and high temperature significantly decreased the duration of nymphal stadia, the longevity and reproductive success of S. flava but not nymphal survival. Adults produced fewer nymphs in an environment with elevated CO2 and high temperature than an environment with elevated CO2 and lower fluctuating temperatures. Based on these resul... Mostrar Tudo |
Palavras-Chave: |
Afideos. |
Thesagro: |
Dióxido de Carbono; Forragem; Temperatura. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02359naa a2200217 a 4500 001 1950197 005 2024-02-09 008 2012 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1653/024.095.0227$2DOI 100 1 $aAUAD, A. M. 245 $aEffect of climate chang on longevity and reproduction of Sipha Flava (Hemiptera$baphididae).$h[electronic resource] 260 $c2012 520 $aThis study examined effects of elevated CO2 alone and in combination with elevated temperature on plant-aphid interactions. CO2 levels in which the host plants were grown affected the durations of some nymphal stadia, but not the survivorship within each instar or of all nymphal instars. Sipha flava (Forbes) (Hemiptera: Aphididae) adults kept under a constant high CO2 environment (500 ppm) and fed on plants grown under fluctuating CO2 levels (avg. 440 ppm) in a greenhouse had significantly greater longevity and greater reproduction than aphids fed on plants grown either under a constant high CO2 level (500 ppm) or under fluctuating CO2 levels (avg. 368 ppm). Nevertheless, no significant differences were observed in these biological parameters of S. flava that were kept individually in a greenhouse, regardless of the CO2 and temperatures under which the plants used to feed them were grown. However, populations of aphids kept and fed on plants grown in the greenhouse produced significantly more nymphs and adults than did those fed plants grown in a climate-controlled chamber under a constant high CO2 level (500 ppm). The combination of elevated CO2 and high temperature significantly decreased the duration of nymphal stadia, the longevity and reproductive success of S. flava but not nymphal survival. Adults produced fewer nymphs in an environment with elevated CO2 and high temperature than an environment with elevated CO2 and lower fluctuating temperatures. Based on these results, we concluded that S. flava populations will significantly decrease under future climatic conditions when both the concentration of atmospheric CO2 and temperature are projectedto increase. 650 $aDióxido de Carbono 650 $aForragem 650 $aTemperatura 653 $aAfideos 700 1 $aFONSECA, M. DAS G. 700 1 $aRESENDE, T. T. de 700 1 $aMADDALENA, I. S. DE C. P. 773 $tFlorida Entomologist$gv.95, n.2, p. 433-444, 2012
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