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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
04/12/2000 |
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Data da última atualização: |
05/04/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
LIEBEREI, R.; GASPAROTTO, L.; PREISINGER, H.; SCHROTH, G. |
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Afiliação: |
University of Hamburg; Embrapa Amazônia Ocidental.; LUADIR GASPAROTTO, CPAA. |
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Título: |
Characteristics of sustainable polyculture production systems on terra firme. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Programa and abstracts... Hamburg: University, 2000. |
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Páginas: |
p. 96. |
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Idioma: |
Inglês |
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Conteúdo: |
The combination of soil science, forestry, agronomy and biology allowed an analytical comparison of various experimental mixed culture systems. From these studies, a descriptor system was developed which allows to understand the contribution of each plant species to nutrient cycling, water distribution, litter formation, overall biomass production and crop production. This knowledge allows to combine plants so that their properties interact to form a system, which minimizes mineral losses and which regulates air humidity and water distribution and thus leads to stable crop production. The general conclusion which can be drawn after eight years of polyculture study is: a) stable productions systems for samllholder families have bee developed; b) the systems are variable; they can be adapted to the respective site conditions; c) the manager of these plantations requires a deeper understanding of the cultivation systems and an intensive dissemination of knowledge and a well develope on-farm training system for farmers. |
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Palavras-Chave: |
Agrofloresta; Amazonas; Brasil; Manaus; Sustainability. |
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Thesagro: |
Conservação do Solo; Cultivo Multiplo; Desenvolvimento Sustentável; Floresta Tropical Úmida; Pequeno Produtor; Uso da Terra. |
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Thesaurus Nal: |
agroforestry; land use; multiple cropping; small farms; soil conservation; tropical rain forests. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/188839/1/German-Brazilian-pag.96.pdf
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Marc: |
LEADER 02084nam a2200361 a 4500
001 1670014
005 2022-04-05
008 2000 bl uuuu u00u1 u #d
100 1 $aLIEBEREI, R.
245 $aCharacteristics of sustainable polyculture production systems on terra firme.
260 $aIn: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Programa and abstracts... Hamburg: University$c2000
300 $ap. 96.
520 $aThe combination of soil science, forestry, agronomy and biology allowed an analytical comparison of various experimental mixed culture systems. From these studies, a descriptor system was developed which allows to understand the contribution of each plant species to nutrient cycling, water distribution, litter formation, overall biomass production and crop production. This knowledge allows to combine plants so that their properties interact to form a system, which minimizes mineral losses and which regulates air humidity and water distribution and thus leads to stable crop production. The general conclusion which can be drawn after eight years of polyculture study is: a) stable productions systems for samllholder families have bee developed; b) the systems are variable; they can be adapted to the respective site conditions; c) the manager of these plantations requires a deeper understanding of the cultivation systems and an intensive dissemination of knowledge and a well develope on-farm training system for farmers.
650 $aagroforestry
650 $aland use
650 $amultiple cropping
650 $asmall farms
650 $asoil conservation
650 $atropical rain forests
650 $aConservação do Solo
650 $aCultivo Multiplo
650 $aDesenvolvimento Sustentável
650 $aFloresta Tropical Úmida
650 $aPequeno Produtor
650 $aUso da Terra
653 $aAgrofloresta
653 $aAmazonas
653 $aBrasil
653 $aManaus
653 $aSustainability
700 1 $aGASPAROTTO, L.
700 1 $aPREISINGER, H.
700 1 $aSCHROTH, G.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
18/12/2017 |
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Data da última atualização: |
19/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MENEZES, I. P. P. de; HOFFMANN, L. V.; LIMA, T. H. de; SILVA, A. R. da; LUCENA, V. S.; BARROSO, P. A. V. |
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Afiliação: |
I. P. P. DE MENEZES, IFG - URUTAÍ; LUCIA VIEIRA HOFFMANN, CNPA; T.H. de LIMA, IFG - URUTAÍ; A. R. da SILVA, IFG - URUTAÍ; V.S. LUCENA, UFRPE; PAULO AUGUSTO VIANNA BARROSO, CNPM. |
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Título: |
Genetic diversity of arboreal cotton populations of the Brazilian semiarid: a remnant primary gene pool for cotton cultivars. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 16, n. 3, 2017. |
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DOI: |
10.4238/gmr16039659 |
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Idioma: |
Inglês |
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Conteúdo: |
Mocó cotton belong to the same species as the cultivated species, Gossypium hirsutum, and cultivated forms were mainly landraces but also developed as cultivars, bearing good fiber quality and drought tolerant when cropped as a perennial species. The northeast Brazil crop system based on this cotton type is finished, with a few small area planted in the three main States, where it was previously cultivated (Ceará, Paraíba, and Rio Grande do Norte), but in others, maintenance is accomplished by single dooryard plants. Plants were found in all visited Northeast Brazil municipalities, sometimes in the North of the country, and were collected for ex situ preservation and evaluation. Most of seeds had no fuzz (62.2%) and 94.6% of the genotypes presented spot in flowers. Seventy-one alleles were revealed in 12 loci. The genetic structure of the population evaluated by microsatellite markers shows two main groups, one comprising the Seridó region where landraces were originated and other comprising the state of Ceará, where a specific breeding program was developed. Genotypes collected in North Brazil States as well as those collected in Bahia, Alagoas, and Sergipe grouped with those collected in Ceará. The Mantel correlogram indicates a significant (P < 0.05) correlation between genetic and geographical distances up to 77 km. The ex situ maintenance and agronomical evaluation are the main concerns for mocó, as the use of the agricultural interesting traits, possibly introgressed to other genotypes, is predicted. The in situ preservation is still of interest since there is more diversity there than in the collected plants and some should be continued due to use as medicinal plant. MenosMocó cotton belong to the same species as the cultivated species, Gossypium hirsutum, and cultivated forms were mainly landraces but also developed as cultivars, bearing good fiber quality and drought tolerant when cropped as a perennial species. The northeast Brazil crop system based on this cotton type is finished, with a few small area planted in the three main States, where it was previously cultivated (Ceará, Paraíba, and Rio Grande do Norte), but in others, maintenance is accomplished by single dooryard plants. Plants were found in all visited Northeast Brazil municipalities, sometimes in the North of the country, and were collected for ex situ preservation and evaluation. Most of seeds had no fuzz (62.2%) and 94.6% of the genotypes presented spot in flowers. Seventy-one alleles were revealed in 12 loci. The genetic structure of the population evaluated by microsatellite markers shows two main groups, one comprising the Seridó region where landraces were originated and other comprising the state of Ceará, where a specific breeding program was developed. Genotypes collected in North Brazil States as well as those collected in Bahia, Alagoas, and Sergipe grouped with those collected in Ceará. The Mantel correlogram indicates a significant (P < 0.05) correlation between genetic and geographical distances up to 77 km. The ex situ maintenance and agronomical evaluation are the main concerns for mocó, as the use of the agricultural interesting traits, possibly introgressed t... Mostrar Tudo |
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Palavras-Chave: |
Alelo; Genetic diversity. |
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Thesagro: |
Algodão; Fibra; Genótipo; Germoplasma; Gossypium hirsutum. |
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Thesaurus NAL: |
Alleles; Cotton; Genotype; Germplasm. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/169219/1/Genetic-diversity-of-arboreal-cotton....pdf
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Marc: |
LEADER 02631naa a2200325 a 4500
001 2082821
005 2017-12-19
008 2017 bl uuuu u00u1 u #d
024 7 $a10.4238/gmr16039659$2DOI
100 1 $aMENEZES, I. P. P. de
245 $aGenetic diversity of arboreal cotton populations of the Brazilian semiarid$ba remnant primary gene pool for cotton cultivars.$h[electronic resource]
260 $c2017
520 $aMocó cotton belong to the same species as the cultivated species, Gossypium hirsutum, and cultivated forms were mainly landraces but also developed as cultivars, bearing good fiber quality and drought tolerant when cropped as a perennial species. The northeast Brazil crop system based on this cotton type is finished, with a few small area planted in the three main States, where it was previously cultivated (Ceará, Paraíba, and Rio Grande do Norte), but in others, maintenance is accomplished by single dooryard plants. Plants were found in all visited Northeast Brazil municipalities, sometimes in the North of the country, and were collected for ex situ preservation and evaluation. Most of seeds had no fuzz (62.2%) and 94.6% of the genotypes presented spot in flowers. Seventy-one alleles were revealed in 12 loci. The genetic structure of the population evaluated by microsatellite markers shows two main groups, one comprising the Seridó region where landraces were originated and other comprising the state of Ceará, where a specific breeding program was developed. Genotypes collected in North Brazil States as well as those collected in Bahia, Alagoas, and Sergipe grouped with those collected in Ceará. The Mantel correlogram indicates a significant (P < 0.05) correlation between genetic and geographical distances up to 77 km. The ex situ maintenance and agronomical evaluation are the main concerns for mocó, as the use of the agricultural interesting traits, possibly introgressed to other genotypes, is predicted. The in situ preservation is still of interest since there is more diversity there than in the collected plants and some should be continued due to use as medicinal plant.
650 $aAlleles
650 $aCotton
650 $aGenotype
650 $aGermplasm
650 $aAlgodão
650 $aFibra
650 $aGenótipo
650 $aGermoplasma
650 $aGossypium hirsutum
653 $aAlelo
653 $aGenetic diversity
700 1 $aHOFFMANN, L. V.
700 1 $aLIMA, T. H. de
700 1 $aSILVA, A. R. da
700 1 $aLUCENA, V. S.
700 1 $aBARROSO, P. A. V.
773 $tGenetics and Molecular Research$gv. 16, n. 3, 2017.
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Registro original: |
Embrapa Algodão (CNPA) |
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