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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Meio-Norte. |
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Data corrente: |
25/07/1997 |
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Data da última atualização: |
04/01/2024 |
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Autoria: |
NASCIMENTO, M. do P. S. C. B. do. |
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Título: |
Germination and establishment of three tropical legumes. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Tucson: University of Arizona, 1987. |
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Páginas: |
96p. |
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Idioma: |
Inglês |
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Notas: |
Ph.D. Thesis. |
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Conteúdo: |
Studies were conducted to test germination and to determine morphological and physiological characteristics of Canavalia obtusifolia DC., Cratylia floribunda Benth. and Dioclea lasiophylla Mart., which allow them to cope with water stress. Germination studies were done using PEG, moist paper and three different soils, in a germinator. Establishement and early growth studies were conducted in a greenhouse, using two different soils. In PEG, maximum percentage germination were near 100% for C.obtusifolia and D.lasiophylla and 75% for C.floribunda. Respectivaly, the water potentials for maximum germination were from 0 to -1 bar, from 0 to -5 bars, and at -5 bars. In moist paper, however, C.floribunda had near 100% germination. In the three soils, the three species had near or equal to 100% germination and their radicle grew more than in PEG. The rate of germination tended to be faster in soil than in PEG. However, it was affected by both soil and seed characteristics. So, germination was slower in Canelo, a pH 4, clay soil, as well as for the large-seeded C.obtusifolia, maybe due to the reduction in the soil water conductivity at the seed-soil interface. It is suggested that leakage of solutes and spoilage of seeds as well as rapid water uptake at high water potentials, resulted in low germination of C.floribunda in PEG. Plants of C.floribunda and D.lasiophylla did not decrease their stomatal conductance or transpiration under high water stree, and their leaf water and osmotic potentials were sharply reduced. ........ MenosStudies were conducted to test germination and to determine morphological and physiological characteristics of Canavalia obtusifolia DC., Cratylia floribunda Benth. and Dioclea lasiophylla Mart., which allow them to cope with water stress. Germination studies were done using PEG, moist paper and three different soils, in a germinator. Establishement and early growth studies were conducted in a greenhouse, using two different soils. In PEG, maximum percentage germination were near 100% for C.obtusifolia and D.lasiophylla and 75% for C.floribunda. Respectivaly, the water potentials for maximum germination were from 0 to -1 bar, from 0 to -5 bars, and at -5 bars. In moist paper, however, C.floribunda had near 100% germination. In the three soils, the three species had near or equal to 100% germination and their radicle grew more than in PEG. The rate of germination tended to be faster in soil than in PEG. However, it was affected by both soil and seed characteristics. So, germination was slower in Canelo, a pH 4, clay soil, as well as for the large-seeded C.obtusifolia, maybe due to the reduction in the soil water conductivity at the seed-soil interface. It is suggested that leakage of solutes and spoilage of seeds as well as rapid water uptake at high water potentials, resulted in low germination of C.floribunda in PEG. Plants of C.floribunda and D.lasiophylla did not decrease their stomatal conductance or transpiration under high water stree, and their leaf water and osmotic ... Mostrar Tudo |
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Palavras-Chave: |
Casa-de-vegetacao; Dioclea lasiophylla; Planta leguminosa tropical; Plants; Regiao tropical; Tropical zones. |
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Thesagro: |
Água; Canavalia Obtusifolia; Cratylia Floribunda; Fisiologia; Germinação; Leguminosa; Planta; Solo. |
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Thesaurus Nal: |
germination; greenhouses; legumes; soil; water. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02449nam a2200361 a 4500
001 1055171
005 2024-01-04
008 1987 bl uuuu m 00u1 u #d
100 1 $aNASCIMENTO, M. do P. S. C. B. do
245 $aGermination and establishment of three tropical legumes.
260 $aTucson: University of Arizona$c1987
300 $a96p.
500 $aPh.D. Thesis.
520 $aStudies were conducted to test germination and to determine morphological and physiological characteristics of Canavalia obtusifolia DC., Cratylia floribunda Benth. and Dioclea lasiophylla Mart., which allow them to cope with water stress. Germination studies were done using PEG, moist paper and three different soils, in a germinator. Establishement and early growth studies were conducted in a greenhouse, using two different soils. In PEG, maximum percentage germination were near 100% for C.obtusifolia and D.lasiophylla and 75% for C.floribunda. Respectivaly, the water potentials for maximum germination were from 0 to -1 bar, from 0 to -5 bars, and at -5 bars. In moist paper, however, C.floribunda had near 100% germination. In the three soils, the three species had near or equal to 100% germination and their radicle grew more than in PEG. The rate of germination tended to be faster in soil than in PEG. However, it was affected by both soil and seed characteristics. So, germination was slower in Canelo, a pH 4, clay soil, as well as for the large-seeded C.obtusifolia, maybe due to the reduction in the soil water conductivity at the seed-soil interface. It is suggested that leakage of solutes and spoilage of seeds as well as rapid water uptake at high water potentials, resulted in low germination of C.floribunda in PEG. Plants of C.floribunda and D.lasiophylla did not decrease their stomatal conductance or transpiration under high water stree, and their leaf water and osmotic potentials were sharply reduced. ........
650 $agermination
650 $agreenhouses
650 $alegumes
650 $asoil
650 $awater
650 $aÁgua
650 $aCanavalia Obtusifolia
650 $aCratylia Floribunda
650 $aFisiologia
650 $aGerminação
650 $aLeguminosa
650 $aPlanta
650 $aSolo
653 $aCasa-de-vegetacao
653 $aDioclea lasiophylla
653 $aPlanta leguminosa tropical
653 $aPlants
653 $aRegiao tropical
653 $aTropical zones
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Embrapa Meio-Norte (CPAMN) |
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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
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
04/01/2007 |
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Data da última atualização: |
04/07/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CARNEIRO, M. |
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Título: |
Transgênicos: desafios e oportunidades. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, v. 31, supl., p. 35-36, ago. 2006. Anais do: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 39.; ANNUAL MEETING OF THE BRAZILIAN PHYTOPATHOLOGICAL SOCIETY, 39., 2006, Salvador, BA. |
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Idioma: |
Português |
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Palavras-Chave: |
Transgênicos. |
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Thesagro: |
Agronegócio; Biotecnologia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00541nam a2200133 a 4500
001 1188218
005 2022-07-04
008 2006 bl uuuu u00u1 u #d
100 1 $aCARNEIRO, M.
245 $aTransgênicos$bdesafios e oportunidades.$h[electronic resource]
260 $aFitopatologia Brasileira, v. 31, supl., p. 35-36, ago. 2006. Anais do: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 39.; ANNUAL MEETING OF THE BRAZILIAN PHYTOPATHOLOGICAL SOCIETY, 39., 2006, Salvador, BA.$c2006
650 $aAgronegócio
650 $aBiotecnologia
653 $aTransgênicos
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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