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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
16/05/2018 |
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Data da última atualização: |
21/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RESENDE, R. T.; SOARES, A. A. V.; FORRESTER, D. I.; MARCATTI, G. E.; SANTOS, A. R. dos; TAKAHASHI, E. K.; SILVA, F. F. e; GRATTAPAGLIA, D.; RESENDE, M. D. V. de; LEITE, H. G. |
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Afiliação: |
RAFAEL T. RESENDE, UFV; ALVARO A. V. SOARES, UFRA; DAVID I. FORRESTER, SWISS FEDERAL INSTITUTE FOR FOREST, SWITZERLAND; GUSTAVO E. MARCATTI, UFSJ-CSL; ALEXANDRE R. DOS SANTOS, UFES; ELIZABETE K. TAKAHASHI, CENIBRA S.A.; FABYANO F. E SILVA, UFV; DARIO GRATTAPAGLIA, Cenargen; MARCOS DEON VILELA DE RESENDE, CNPF; HELIO G. LEITE, UFV. |
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Título: |
Environmental uniformity, site quality and tree competition interact to determine stand productivity of clonal Eucalyptus. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Forest Ecology and Management, v. 410, p. 76-83, Feb. 2018. |
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DOI: |
10.1016/j.foreco.2017.12.038 |
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Idioma: |
Inglês |
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Conteúdo: |
The major determinants of productivity in Eucalyptus plantations include the site productive capacity, local environmental uniformity, and the tree genetics, which impact their growth potential and competitiveness. While these factors have received a lot of attention individually, less attention has been given to the relative importance of these factors and the interactions between them. We examined these factors and their interactions using eight experiments located along a gradient in site productivity, consisting of 54 clonal genotypes (Eucalyptus urophylla × E. grandis hybrids) at two plant spacings (3 × 3.33 and 3 × 2 m). Stand productivity was quantified as the mean annual increment at age 6 years (m3 ha?1 year?1). Site productive capacity was represented using a site index based on mean dominant height at age 6 years. Environmental uniformity was calculated from within-plot variability in growth of very young stands using residual spatial autocorrelation. The competitive ability of a given phenotype was calculated as the percent loss in potential growth due to neighbor competition. Productivity increased with all variables but site quality had the greatest effect, followed by environmental uniformity and then competitive ability, with corresponding changes in productivity of about 30, 20 and 10 m3 ha?1 year?1, respectively, across the range of the given variable. With higher environmental heterogeneity, competition among genotypes increased, especially at dense spacing, showing that in such situations, highly competitive genotypes may display productivities similar to the less competitive genotypes in uniform environments. Experimental plots distributed across site quality and uniformity gradients provide opportunity for greater genetic differentiation than plots covering more homogeneous environments, reinforcing the recommendation of establishing genetic tests in locations with extreme site qualities. Our work suggests that the G × E interaction is linked to site quality and, to a lesser degree, to the local environmental uniformity. This work shows the value of adopting environmental gradient-based approaches in tree genetic testing and clone recommendation as a way to more accurately match genotypes to specific sites. MenosThe major determinants of productivity in Eucalyptus plantations include the site productive capacity, local environmental uniformity, and the tree genetics, which impact their growth potential and competitiveness. While these factors have received a lot of attention individually, less attention has been given to the relative importance of these factors and the interactions between them. We examined these factors and their interactions using eight experiments located along a gradient in site productivity, consisting of 54 clonal genotypes (Eucalyptus urophylla × E. grandis hybrids) at two plant spacings (3 × 3.33 and 3 × 2 m). Stand productivity was quantified as the mean annual increment at age 6 years (m3 ha?1 year?1). Site productive capacity was represented using a site index based on mean dominant height at age 6 years. Environmental uniformity was calculated from within-plot variability in growth of very young stands using residual spatial autocorrelation. The competitive ability of a given phenotype was calculated as the percent loss in potential growth due to neighbor competition. Productivity increased with all variables but site quality had the greatest effect, followed by environmental uniformity and then competitive ability, with corresponding changes in productivity of about 30, 20 and 10 m3 ha?1 year?1, respectively, across the range of the given variable. With higher environmental heterogeneity, competition among genotypes increased, especially at dense spacin... Mostrar Tudo |
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Palavras-Chave: |
Clonal forest; Eucalyptus sp; Mixed models; Plant based indexes; Random regression; Structural diversity. |
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Thesaurus Nal: |
Breeding; Eucalyptus; Forest management; Phenotypic plasticity. |
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Categoria do assunto: |
--
G Melhoramento Genético |
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Marc: |
LEADER 03366naa a2200361 a 4500
001 2093538
005 2018-11-21
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1016/j.foreco.2017.12.038$2DOI
100 1 $aRESENDE, R. T.
245 $aEnvironmental uniformity, site quality and tree competition interact to determine stand productivity of clonal Eucalyptus.$h[electronic resource]
260 $c2018
520 $aThe major determinants of productivity in Eucalyptus plantations include the site productive capacity, local environmental uniformity, and the tree genetics, which impact their growth potential and competitiveness. While these factors have received a lot of attention individually, less attention has been given to the relative importance of these factors and the interactions between them. We examined these factors and their interactions using eight experiments located along a gradient in site productivity, consisting of 54 clonal genotypes (Eucalyptus urophylla × E. grandis hybrids) at two plant spacings (3 × 3.33 and 3 × 2 m). Stand productivity was quantified as the mean annual increment at age 6 years (m3 ha?1 year?1). Site productive capacity was represented using a site index based on mean dominant height at age 6 years. Environmental uniformity was calculated from within-plot variability in growth of very young stands using residual spatial autocorrelation. The competitive ability of a given phenotype was calculated as the percent loss in potential growth due to neighbor competition. Productivity increased with all variables but site quality had the greatest effect, followed by environmental uniformity and then competitive ability, with corresponding changes in productivity of about 30, 20 and 10 m3 ha?1 year?1, respectively, across the range of the given variable. With higher environmental heterogeneity, competition among genotypes increased, especially at dense spacing, showing that in such situations, highly competitive genotypes may display productivities similar to the less competitive genotypes in uniform environments. Experimental plots distributed across site quality and uniformity gradients provide opportunity for greater genetic differentiation than plots covering more homogeneous environments, reinforcing the recommendation of establishing genetic tests in locations with extreme site qualities. Our work suggests that the G × E interaction is linked to site quality and, to a lesser degree, to the local environmental uniformity. This work shows the value of adopting environmental gradient-based approaches in tree genetic testing and clone recommendation as a way to more accurately match genotypes to specific sites.
650 $aBreeding
650 $aEucalyptus
650 $aForest management
650 $aPhenotypic plasticity
653 $aClonal forest
653 $aEucalyptus sp
653 $aMixed models
653 $aPlant based indexes
653 $aRandom regression
653 $aStructural diversity
700 1 $aSOARES, A. A. V.
700 1 $aFORRESTER, D. I.
700 1 $aMARCATTI, G. E.
700 1 $aSANTOS, A. R. dos
700 1 $aTAKAHASHI, E. K.
700 1 $aSILVA, F. F. e
700 1 $aGRATTAPAGLIA, D.
700 1 $aRESENDE, M. D. V. de
700 1 $aLEITE, H. G.
773 $tForest Ecology and Management$gv. 410, p. 76-83, Feb. 2018.
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Registro original: |
Embrapa Florestas (CNPF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
08/12/2006 |
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Data da última atualização: |
14/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF. |
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Título: |
Liming and copper fertilization in dry bean production on an oxisol in no-tillage system. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, v. 29, n. 7, p. 1219-1228, Jul. 2006. |
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DOI: |
https://doi.org/10.1080/01904160600767435 |
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Idioma: |
Inglês |
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Conteúdo: |
A field study was conducted with the objective of determining response of dry bean (Phaseolus vulgaris L.) to liming and copper (Cu) fertilization applied to an Oxisol. The lime rates used were 0, 12, and 24 Mg hat and Cu rates were 0, 2.5, 5, 10, 20, and 40 kg Cu ha(-1). Liming significantly increased common bean grain yield. Liming also significantly influenced soil chemical properties in the top (0-10cm) as well as in the sub (10-20 cm) soil layer in favor of higher bean yield. Application of Cu did not influence yield of bean significantly. Average soil chemical properties across two soil layers (0-10 and 10-20 cm) for maximum bean yield were pH 6.4, calcium (Ca), 4.2 cmol(c), kg(-1), magnesium (Mg) 1.0 cmol(c) kg(-1), H+Al 3.2 cmol(c) kg(-1), acidity saturation 40.4%, cation exchange capacity (CEC) 8.9 cmol(c) kg(-1), base saturation 63.1%, Ca saturation 45.7%, Mg saturation 18.0%, and Potassium (K) saturation 2.9. |
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Thesagro: |
Feijão; Phaseolus Vulgaris; Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01478naa a2200169 a 4500
001 1214484
005 2022-05-14
008 2006 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/01904160600767435$2DOI
100 1 $aFAGERIA, N. K.
245 $aLiming and copper fertilization in dry bean production on an oxisol in no-tillage system.$h[electronic resource]
260 $c2006
520 $aA field study was conducted with the objective of determining response of dry bean (Phaseolus vulgaris L.) to liming and copper (Cu) fertilization applied to an Oxisol. The lime rates used were 0, 12, and 24 Mg hat and Cu rates were 0, 2.5, 5, 10, 20, and 40 kg Cu ha(-1). Liming significantly increased common bean grain yield. Liming also significantly influenced soil chemical properties in the top (0-10cm) as well as in the sub (10-20 cm) soil layer in favor of higher bean yield. Application of Cu did not influence yield of bean significantly. Average soil chemical properties across two soil layers (0-10 and 10-20 cm) for maximum bean yield were pH 6.4, calcium (Ca), 4.2 cmol(c), kg(-1), magnesium (Mg) 1.0 cmol(c) kg(-1), H+Al 3.2 cmol(c) kg(-1), acidity saturation 40.4%, cation exchange capacity (CEC) 8.9 cmol(c) kg(-1), base saturation 63.1%, Ca saturation 45.7%, Mg saturation 18.0%, and Potassium (K) saturation 2.9.
650 $aFeijão
650 $aPhaseolus Vulgaris
650 $aSolo
773 $tJournal of Plant Nutrition$gv. 29, n. 7, p. 1219-1228, Jul. 2006.
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Embrapa Arroz e Feijão (CNPAF) |
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