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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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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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| Registros recuperados : 2 | |
| 1. |  | OLIVEIRA-PAIVA, C. A.; OLIVEIRA, M. C. de; MARRIEL, I. E.; GOMES, E. A.; CASTRO, C. S. P. DE; BRITO, M. A. V. P. e; COELHO, E. A.; MEIRELLES, W. C. L. Banco de competências: ferramenta de apoio à decisão de capacitação das coleções de microrganismos da Embrapa. Sete Lagoas: Embrapa Milho e Sorgo, 2015. 68 p. (Embrapa Milho e Sorgo. Documentos, 194).| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 2. | | SALOMAO, A. N.; SANTOS, I. R. I.; JOSE, S. C. B. R.; WALTER, B. M. T.; ALBUQUERQUE, M. dos S. M.; GIMENES, M. A.; TEIXEIRA, F. F.; CASTRO, C. S. P. de; MAZZOCATO, A. C.; GOEDERT, C. O. Princípios e conceitos sobre recursos genéticos. In: PAIVA, S. R.; ALBUQUERQUE, M. do S. M.; SALOMÃO, A. N.; JOSÉ, S. C. B. R.; MOREIRA, J. R. de A. (Ed.). Recursos genéticos: o produtor pergunta, a Embrapa responde. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2019. p. 19-38. (Coleção 500 perguntas, 500 respostas).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Pecuária Sul; Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 2 | |
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