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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
06/10/2003 |
Data da última atualização: |
06/10/2003 |
Autoria: |
MOREIRA, A. G.; KLINK, C. A. |
Título: |
Biomass allocation and growth of tree seedlings from two contrasting Brazilian savannas. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
Ecotropicos, v. 13, n.1, p. 43-51, 2000. |
Idioma: |
Inglês |
Conteúdo: |
Growth and biomass allocation to roots and shoots of ten native trees of two contrasting savanna communities in central Brazil (Cerrado), differing in woody species density, was studied for up to seven months after germination. We compared three closed savanna woodland species with four open savanna species. Three other species were common to both savanna types. Root/shoot rations different greatly among species but no similar pattern of biomass allocation to roots and shoots was found between species of the same savanna type. After seven months of growth the woodland species Alibertia edulis. Rich had a root/shoot ratio smaller than one and the open savanna species Kielmeyera coriaceae (Sp.). Mart. a ratio equal to nine; the remaining species had values ranging from one to six, irrespective of savanna type. Relative growth rate (RGR) of early stage woodland seedlings (30-day old seedlings) was significantly different from open savanna seedlings (range between 0.059 and 0.192 mg mg-1 day-1 for the woodland species, and between 0.025 and 0.035 mg mg-1 day-1 for the open savanna species; common species had values ranging from one to six, irrespective of savanna type. Relative growth rate (RGR) of early stage, woodland seedlings (30-day old seedlings) was significantly different from open savanna seedlings (range between 0.059 and 0.192 mg mg-1 day-1 for the woodlands species, and between 0.025 and 0.035 mg mg-1 day-1 for the open savanna species had intermidiate vallues). For older seedlings (150-day old seedlings) differences disappear (RGR ranging between 0.013 and 0.030 mg mg-1 day-1 espective of savanna type). The high values of root /shoot ratios and root elongation of most species is probaly related to their capacity to withstand the dry season and resprout are fire. MenosGrowth and biomass allocation to roots and shoots of ten native trees of two contrasting savanna communities in central Brazil (Cerrado), differing in woody species density, was studied for up to seven months after germination. We compared three closed savanna woodland species with four open savanna species. Three other species were common to both savanna types. Root/shoot rations different greatly among species but no similar pattern of biomass allocation to roots and shoots was found between species of the same savanna type. After seven months of growth the woodland species Alibertia edulis. Rich had a root/shoot ratio smaller than one and the open savanna species Kielmeyera coriaceae (Sp.). Mart. a ratio equal to nine; the remaining species had values ranging from one to six, irrespective of savanna type. Relative growth rate (RGR) of early stage woodland seedlings (30-day old seedlings) was significantly different from open savanna seedlings (range between 0.059 and 0.192 mg mg-1 day-1 for the woodland species, and between 0.025 and 0.035 mg mg-1 day-1 for the open savanna species; common species had values ranging from one to six, irrespective of savanna type. Relative growth rate (RGR) of early stage, woodland seedlings (30-day old seedlings) was significantly different from open savanna seedlings (range between 0.059 and 0.192 mg mg-1 day-1 for the woodlands species, and between 0.025 and 0.035 mg mg-1 day-1 for the open savanna species had intermidiate vallues). For ... Mostrar Tudo |
Thesagro: |
Biomassa; Cerrado; Crescimento; Plântula. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02286naa a2200181 a 4500 001 1567198 005 2003-10-06 008 2000 bl --- 0-- u #d 100 1 $aMOREIRA, A. G. 245 $aBiomass allocation and growth of tree seedlings from two contrasting Brazilian savannas. 260 $c2000 520 $aGrowth and biomass allocation to roots and shoots of ten native trees of two contrasting savanna communities in central Brazil (Cerrado), differing in woody species density, was studied for up to seven months after germination. We compared three closed savanna woodland species with four open savanna species. Three other species were common to both savanna types. Root/shoot rations different greatly among species but no similar pattern of biomass allocation to roots and shoots was found between species of the same savanna type. After seven months of growth the woodland species Alibertia edulis. Rich had a root/shoot ratio smaller than one and the open savanna species Kielmeyera coriaceae (Sp.). Mart. a ratio equal to nine; the remaining species had values ranging from one to six, irrespective of savanna type. Relative growth rate (RGR) of early stage woodland seedlings (30-day old seedlings) was significantly different from open savanna seedlings (range between 0.059 and 0.192 mg mg-1 day-1 for the woodland species, and between 0.025 and 0.035 mg mg-1 day-1 for the open savanna species; common species had values ranging from one to six, irrespective of savanna type. Relative growth rate (RGR) of early stage, woodland seedlings (30-day old seedlings) was significantly different from open savanna seedlings (range between 0.059 and 0.192 mg mg-1 day-1 for the woodlands species, and between 0.025 and 0.035 mg mg-1 day-1 for the open savanna species had intermidiate vallues). For older seedlings (150-day old seedlings) differences disappear (RGR ranging between 0.013 and 0.030 mg mg-1 day-1 espective of savanna type). The high values of root /shoot ratios and root elongation of most species is probaly related to their capacity to withstand the dry season and resprout are fire. 650 $aBiomassa 650 $aCerrado 650 $aCrescimento 650 $aPlântula 700 1 $aKLINK, C. A. 773 $tEcotropicos$gv. 13, n.1, p. 43-51, 2000.
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Embrapa Cerrados (CPAC) |
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Biblioteca(s): |
Embrapa Hortaliças; Embrapa Unidades Centrais. |
Data corrente: |
10/12/2021 |
Data da última atualização: |
19/04/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SANTOS, M. A. V.; ANDRADE JÚNIOR, V. C. de; GUIMARÃES, A. G.; BRITO, O. G.; TAULA, A. J. V.; COSTA, R. A.; ALVES, J. P. R.; SILVA, N. O.; RESENDE, F. V. |
Afiliação: |
MARCELO AUGUSTO VIEIRA SANTOS, UNIVERSIDADE FEDERAL DOS VALES DO JEQUITINHONHA E MUCURI; VALTER CARVALHO DE ANDRADE JÚNIOR, UNIVERSIDADE FEDERAL DE LAVRAS; AMANDA GONÇALVES GUIMARÃES, UNIVERSIDADE FEDERAL DE LAVRAS; ORLANDO GONÇALVES BRITO, UNIVERSIDADE FEDERAL DE LAVRAS; ANTÔNIO JORGE VIEGAS TAULA, INSTITUTO DE INVESTIGAÇÃO AGRÁRIA DE MOÇAMBIQUE; ROGERS AUGUSTO COSTA, UNIVERSIDADE FEDERAL DOS VALES DO JEQUITINHONHA E MUCURI; JOÃO PEDRO ROCHA ALVES, UNIVERSIDADE FEDERAL DOS VALES DO JEQUITINHONHA E MUCURI; NATALIA OLIVEIRA SILVA, UNIVERSIDADE FEDERAL DOS VALES DO JEQUITINHONHA E MUCURI; FRANCISCO VILELA RESENDE, CNPH. |
Título: |
Correlations between agronomic characters in garlic. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 57, e02603, 2022. |
ISSN: |
1678-3921 |
Idioma: |
Inglês |
Notas: |
Título em português: Correlações entre características agronômicas em alho. |
Conteúdo: |
ABSTRACT - The objective of this work was to evaluate the phenotypic correlations between agronomic characters of garlic (Allium sativum) and to carry out the path analysis, using commercial bulb yield as the main character. The experiment was conducted under field conditions in two harvests (2018 and 2019) in the municipality of Diamantina, in the state of Minas Gerais, Brazil. A total of 13 garlic genotypes were evaluated, of which 11 were experimental and 2 were commercial cultivars. The experimental design used was randomized complete blocks with four replicates. Characters related to plant biometry and bulb yield were evaluated. The phenotypic correlations and the path analysis of the studied characters were carried out. The Phenotypic correlations that showed significant positive effects occurred between commercial bulb yield and plant height, bulb diameter, number of commercial bulbs, mean total bulb mass, mean commercial bulb mass, total bulb yield, and number of bulbils per bulb. However, only number of commercial bulbs and bulb diameter had significant effects (direct and indirect) on commercial bulb yield. Therefore, in genotype genetic breeding programs in the studied region, selection should seek a larger diameter of bulbs and a higher number of commercial bulbs to increase commercial yield. RESUMO - O objetivo deste trabalho foi avaliar as correlações fenotípicas entre características agronômicas de alho (Allium sativum) e realizar análise de trilha, tendo-se utilizado a produtividade comercial de bulbos como característica principal. O experimento foi conduzido sob condições de campo em duas safras (2018 e 2019), no município de Diamantina, no estado de Minas Gerais, Brasil. Um total de 13 genótipos de alho foram avaliados, sendo 11 experimentais e 2 cultivares comerciais. Utilizou-se o delineamento experimental de blocos ao acaso, com quatro repetições. Foram avaliadas características relacionadas à biometria da planta e à produção de bulbos. Foram realizadas as correlações fenotípicas e a análise de trilha das características estudadas. As correlações fenotípicas que apresentaram efeito positivo significativo ocorreram entre produção comercial de bulbos e altura de planta, diâmetro do bulbo, número de bulbos comerciais, massa média de bulbo total, massa média de bulbo comercial, produtividade total de bulbos e número de bulbilhos por bulbo. No entanto, apenas o número de bulbos comerciais e o diâmetro do bulbo tiveram efeitos significativos (direto e indireto) sobre a produtividade comercial de bulbos. Portanto, em programas de melhoramento de genótipos na região estudada, a seleção deve buscar maior diâmetro de bulbos e maior número de bulbos comerciais para incrementar a produtividade comercial. MenosABSTRACT - The objective of this work was to evaluate the phenotypic correlations between agronomic characters of garlic (Allium sativum) and to carry out the path analysis, using commercial bulb yield as the main character. The experiment was conducted under field conditions in two harvests (2018 and 2019) in the municipality of Diamantina, in the state of Minas Gerais, Brazil. A total of 13 garlic genotypes were evaluated, of which 11 were experimental and 2 were commercial cultivars. The experimental design used was randomized complete blocks with four replicates. Characters related to plant biometry and bulb yield were evaluated. The phenotypic correlations and the path analysis of the studied characters were carried out. The Phenotypic correlations that showed significant positive effects occurred between commercial bulb yield and plant height, bulb diameter, number of commercial bulbs, mean total bulb mass, mean commercial bulb mass, total bulb yield, and number of bulbils per bulb. However, only number of commercial bulbs and bulb diameter had significant effects (direct and indirect) on commercial bulb yield. Therefore, in genotype genetic breeding programs in the studied region, selection should seek a larger diameter of bulbs and a higher number of commercial bulbs to increase commercial yield. RESUMO - O objetivo deste trabalho foi avaliar as correlações fenotípicas entre características agronômicas de alho (Allium sativum) e realizar análise de trilha, tendo-se u... Mostrar Tudo |
Palavras-Chave: |
Análise de ilha. |
Thesagro: |
Alho; Allium Sativum; Bulbo; Características Agronômicas; Melhoramento Genético Vegetal; Produtividade; Rendimento. |
Thesaurus NAL: |
Allium; Bulbs; Garlic; Phenotypic correlation. |
Categoria do assunto: |
-- G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1137554/1/Correlations-between-agronomic-2022.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/233215/1/Correlations-between-agronomic-2022.pdf
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Marc: |
LEADER 03907naa a2200385 a 4500 001 2137554 005 2022-04-19 008 2022 bl uuuu u00u1 u #d 022 $a1678-3921 100 1 $aSANTOS, M. A. V. 245 $aCorrelations between agronomic characters in garlic.$h[electronic resource] 260 $c2022 500 $aTítulo em português: Correlações entre características agronômicas em alho. 520 $aABSTRACT - The objective of this work was to evaluate the phenotypic correlations between agronomic characters of garlic (Allium sativum) and to carry out the path analysis, using commercial bulb yield as the main character. The experiment was conducted under field conditions in two harvests (2018 and 2019) in the municipality of Diamantina, in the state of Minas Gerais, Brazil. A total of 13 garlic genotypes were evaluated, of which 11 were experimental and 2 were commercial cultivars. The experimental design used was randomized complete blocks with four replicates. Characters related to plant biometry and bulb yield were evaluated. The phenotypic correlations and the path analysis of the studied characters were carried out. The Phenotypic correlations that showed significant positive effects occurred between commercial bulb yield and plant height, bulb diameter, number of commercial bulbs, mean total bulb mass, mean commercial bulb mass, total bulb yield, and number of bulbils per bulb. However, only number of commercial bulbs and bulb diameter had significant effects (direct and indirect) on commercial bulb yield. Therefore, in genotype genetic breeding programs in the studied region, selection should seek a larger diameter of bulbs and a higher number of commercial bulbs to increase commercial yield. RESUMO - O objetivo deste trabalho foi avaliar as correlações fenotípicas entre características agronômicas de alho (Allium sativum) e realizar análise de trilha, tendo-se utilizado a produtividade comercial de bulbos como característica principal. O experimento foi conduzido sob condições de campo em duas safras (2018 e 2019), no município de Diamantina, no estado de Minas Gerais, Brasil. Um total de 13 genótipos de alho foram avaliados, sendo 11 experimentais e 2 cultivares comerciais. Utilizou-se o delineamento experimental de blocos ao acaso, com quatro repetições. Foram avaliadas características relacionadas à biometria da planta e à produção de bulbos. Foram realizadas as correlações fenotípicas e a análise de trilha das características estudadas. As correlações fenotípicas que apresentaram efeito positivo significativo ocorreram entre produção comercial de bulbos e altura de planta, diâmetro do bulbo, número de bulbos comerciais, massa média de bulbo total, massa média de bulbo comercial, produtividade total de bulbos e número de bulbilhos por bulbo. No entanto, apenas o número de bulbos comerciais e o diâmetro do bulbo tiveram efeitos significativos (direto e indireto) sobre a produtividade comercial de bulbos. Portanto, em programas de melhoramento de genótipos na região estudada, a seleção deve buscar maior diâmetro de bulbos e maior número de bulbos comerciais para incrementar a produtividade comercial. 650 $aAllium 650 $aBulbs 650 $aGarlic 650 $aPhenotypic correlation 650 $aAlho 650 $aAllium Sativum 650 $aBulbo 650 $aCaracterísticas Agronômicas 650 $aMelhoramento Genético Vegetal 650 $aProdutividade 650 $aRendimento 653 $aAnálise de ilha 700 1 $aANDRADE JÚNIOR, V. C. de 700 1 $aGUIMARÃES, A. G. 700 1 $aBRITO, O. G. 700 1 $aTAULA, A. J. V. 700 1 $aCOSTA, R. A. 700 1 $aALVES, J. P. R. 700 1 $aSILVA, N. O. 700 1 $aRESENDE, F. V. 773 $tPesquisa Agropecuária Brasileira$gv. 57, e02603, 2022.
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