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Registro Completo |
Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Cerrados; Embrapa Gado de Leite; Embrapa Pecuária Sul; Embrapa Tabuleiros Costeiros. |
Data corrente: |
16/08/2021 |
Data da última atualização: |
23/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FERREIRA, F. M.; ROCHA, J. R. do A. S. de C.; BHERING, L. L.; FERNANDES, F. D.; LEDO, F. J. da S.; RANGEL, J. H. de A.; KOPP, M. M.; CAMARA, T. M. M.; SILVA, V. Q. R. da; MACHADO, J. C. |
Afiliação: |
FILIPE MANOEL FERREIRA, Universidade Federal de Viçosa; JOÃO ROMERO DO AMARAL SANTOS DE CARVALHO ROCHA, Universidade Federal de Viçosa; LEONARDO LOPES BHERING, Universidade Federal de Viçosa; FRANCISCO DUARTE FERNANDES, CPAC; FRANCISCO JOSE DA SILVA LEDO, CNPGL; JOSE HENRIQUE DE ALBUQUERQUE RANGEL, CPATC; MAURICIO MARINI KOPP, CPPSUL; TASSIANO MAXWELL MARINHO CAMARA, CPATC; VANESSA QUITETE RIBEIRO DA SILVA, CPAMT; JUAREZ CAMPOLINA MACHADO, CNPGL. |
Título: |
Optimal harvest number and genotypic evaluation of total dry biomass, stability, and adaptability of elephant grass clones for bioenergy purposes. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Biomass and Bioenergy, v. 149, 106104, 2021. |
Idioma: |
Inglês |
Conteúdo: |
For elephant grass breeding for bioenergy purposes, selection should be based on repeated harvests to maximize the selection efficiency. Selecting genotypes with high total dry biomass, associated with high adaptability and stability, is extremely important. Thus, the objective of this study was to estimate the minimum number of harvests required for total dry biomass to enable an accurate selection of elephant grass clones in multiple environmental trials. Additionally, the relative performance of genetic values (HMRPGV) and centroid methods were used to cluster and rank the best clones on the basis of their total dry biomass, adaptability, and stability. Nineteen clones and two checks were evaluated in six environments. Two or four harvests were performed in each environment. A mixed model methodology (REML/BLUP) was used to estimate the variance components and predict the genotypic values. The repeatability coefficient for total dry biomass was 0.20. The accuracies of performing two and four harvests were 59% and 72%, respectively. The increase in selection efficiency by performing two, four, and seven harvests instead of just one was 29%, 57%, and 76%, respectively. Finally, the clones were clustered into four classes according to their total dry biomass, adaptability, and stability. We conclude that at least seven harvests are required to achieve an accuracy of 80%, and that the HMRPGV and centroid methods are practical, visual, and reliable for simultaneously clustering, ranking, and selection of clones based on their adaptability, stability, and total dry biomass production. MenosFor elephant grass breeding for bioenergy purposes, selection should be based on repeated harvests to maximize the selection efficiency. Selecting genotypes with high total dry biomass, associated with high adaptability and stability, is extremely important. Thus, the objective of this study was to estimate the minimum number of harvests required for total dry biomass to enable an accurate selection of elephant grass clones in multiple environmental trials. Additionally, the relative performance of genetic values (HMRPGV) and centroid methods were used to cluster and rank the best clones on the basis of their total dry biomass, adaptability, and stability. Nineteen clones and two checks were evaluated in six environments. Two or four harvests were performed in each environment. A mixed model methodology (REML/BLUP) was used to estimate the variance components and predict the genotypic values. The repeatability coefficient for total dry biomass was 0.20. The accuracies of performing two and four harvests were 59% and 72%, respectively. The increase in selection efficiency by performing two, four, and seven harvests instead of just one was 29%, 57%, and 76%, respectively. Finally, the clones were clustered into four classes according to their total dry biomass, adaptability, and stability. We conclude that at least seven harvests are required to achieve an accuracy of 80%, and that the HMRPGV and centroid methods are practical, visual, and reliable for simultaneously clusterin... Mostrar Tudo |
Palavras-Chave: |
Cenchrus purpureus; Mixed model; Permanent environment. |
Thesagro: |
Bioenergia; Biomassa; Capim Elefante; Gramínea Forrageira. |
Thesaurus Nal: |
Energy crops; Genotype-environment interaction; Models. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02674naa a2200349 a 4500 001 2133810 005 2021-08-23 008 2021 bl uuuu u00u1 u #d 100 1 $aFERREIRA, F. M. 245 $aOptimal harvest number and genotypic evaluation of total dry biomass, stability, and adaptability of elephant grass clones for bioenergy purposes.$h[electronic resource] 260 $c2021 520 $aFor elephant grass breeding for bioenergy purposes, selection should be based on repeated harvests to maximize the selection efficiency. Selecting genotypes with high total dry biomass, associated with high adaptability and stability, is extremely important. Thus, the objective of this study was to estimate the minimum number of harvests required for total dry biomass to enable an accurate selection of elephant grass clones in multiple environmental trials. Additionally, the relative performance of genetic values (HMRPGV) and centroid methods were used to cluster and rank the best clones on the basis of their total dry biomass, adaptability, and stability. Nineteen clones and two checks were evaluated in six environments. Two or four harvests were performed in each environment. A mixed model methodology (REML/BLUP) was used to estimate the variance components and predict the genotypic values. The repeatability coefficient for total dry biomass was 0.20. The accuracies of performing two and four harvests were 59% and 72%, respectively. The increase in selection efficiency by performing two, four, and seven harvests instead of just one was 29%, 57%, and 76%, respectively. Finally, the clones were clustered into four classes according to their total dry biomass, adaptability, and stability. We conclude that at least seven harvests are required to achieve an accuracy of 80%, and that the HMRPGV and centroid methods are practical, visual, and reliable for simultaneously clustering, ranking, and selection of clones based on their adaptability, stability, and total dry biomass production. 650 $aEnergy crops 650 $aGenotype-environment interaction 650 $aModels 650 $aBioenergia 650 $aBiomassa 650 $aCapim Elefante 650 $aGramínea Forrageira 653 $aCenchrus purpureus 653 $aMixed model 653 $aPermanent environment 700 1 $aROCHA, J. R. do A. S. de C. 700 1 $aBHERING, L. L. 700 1 $aFERNANDES, F. D. 700 1 $aLEDO, F. J. da S. 700 1 $aRANGEL, J. H. de A. 700 1 $aKOPP, M. M. 700 1 $aCAMARA, T. M. M. 700 1 $aSILVA, V. Q. R. da 700 1 $aMACHADO, J. C. 773 $tBiomass and Bioenergy$gv. 149, 106104, 2021.
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Registro Completo
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
24/12/2016 |
Data da última atualização: |
08/05/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SILVA, R. L. da; FERREIRA, C. F.; LEDO, C. A. da S.; SOUZA, E. H. de; SILVA, P. H. da; COSTA, M. A. P. de C.; SOUZA, F. V. D. |
Afiliação: |
RONILZE LEITE DA SILVA, UFRB; CLAUDIA FORTES FERREIRA, CNPMF; CARLOS ALBERTO DA SILVA LEDO, CNPMF; EVERTON HILO DE SOUZA, CAPES; PAULO HENRIQUE DA SILVA, UFRB; MARIA ANGÉLICA PEREIRA DE CARVALHO COSTA, UFRB; FERNANDA VIDIGAL DUARTE SOUZA, CNPMF. |
Título: |
Viability and genetic stability of pineapple germplasm after 10 years of in vitro conservation. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Plant Cell, Tissue and Organ Culture, v.127, p.123-133, 2016. |
ISSN: |
0167-6857 |
Idioma: |
Inglês |
Conteúdo: |
The resumed growth of plants conserved in vitro and the maintenance of genetic stability after long periods in a slow growth regime are fundamental to the success of in vitro conservation. This study aimed to evaluate the viability of pineapple plants conserved in vitro for 10 years, by triggering resumed growth and measuring the propagative potential and genetic fidelity using ISSR markers. Conserved plants of 66 accessions were micropropagated by five subcultures with an interval of 45 days. The number of shoots was counted and the propagative potential was calculated by geometric growth of the different accessions. A box plot was constructed to express the variability of the botanical varieties during the subcultures and a Poisson log-linear model was fitted to the data from multiplication of the shoots, and the genetic stability was studied with ISSR markers. All the preserved accessions resumed growing after 10 years. The geometric growth rate indicated a reduction of the propagative potential of all the accessions evaluated. No somaclonal variation was detected in the plants of the Ananas comosus var. comosus and A. comosus var. ananassoides, but probable somaclonal variants were detected in two accessions of A. comosus var. bracteatus, when compared to the stock plant in the field. The results allow standardizing an interval of 24 months between subcultures in the accessions evaluated, facilitating management of the bank. This is the first report of the effect of in vitro conservation on the resumed growth, propagative potential and genetic stability of pineapple plants. MenosThe resumed growth of plants conserved in vitro and the maintenance of genetic stability after long periods in a slow growth regime are fundamental to the success of in vitro conservation. This study aimed to evaluate the viability of pineapple plants conserved in vitro for 10 years, by triggering resumed growth and measuring the propagative potential and genetic fidelity using ISSR markers. Conserved plants of 66 accessions were micropropagated by five subcultures with an interval of 45 days. The number of shoots was counted and the propagative potential was calculated by geometric growth of the different accessions. A box plot was constructed to express the variability of the botanical varieties during the subcultures and a Poisson log-linear model was fitted to the data from multiplication of the shoots, and the genetic stability was studied with ISSR markers. All the preserved accessions resumed growing after 10 years. The geometric growth rate indicated a reduction of the propagative potential of all the accessions evaluated. No somaclonal variation was detected in the plants of the Ananas comosus var. comosus and A. comosus var. ananassoides, but probable somaclonal variants were detected in two accessions of A. comosus var. bracteatus, when compared to the stock plant in the field. The results allow standardizing an interval of 24 months between subcultures in the accessions evaluated, facilitating management of the bank. This is the first report of the effect of in v... Mostrar Tudo |
Palavras-Chave: |
Pineapple. |
Thesagro: |
Abacaxi. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02285naa a2200229 a 4500 001 2059255 005 2023-05-08 008 2016 bl uuuu u00u1 u #d 022 $a0167-6857 100 1 $aSILVA, R. L. da 245 $aViability and genetic stability of pineapple germplasm after 10 years of in vitro conservation.$h[electronic resource] 260 $c2016 520 $aThe resumed growth of plants conserved in vitro and the maintenance of genetic stability after long periods in a slow growth regime are fundamental to the success of in vitro conservation. This study aimed to evaluate the viability of pineapple plants conserved in vitro for 10 years, by triggering resumed growth and measuring the propagative potential and genetic fidelity using ISSR markers. Conserved plants of 66 accessions were micropropagated by five subcultures with an interval of 45 days. The number of shoots was counted and the propagative potential was calculated by geometric growth of the different accessions. A box plot was constructed to express the variability of the botanical varieties during the subcultures and a Poisson log-linear model was fitted to the data from multiplication of the shoots, and the genetic stability was studied with ISSR markers. All the preserved accessions resumed growing after 10 years. The geometric growth rate indicated a reduction of the propagative potential of all the accessions evaluated. No somaclonal variation was detected in the plants of the Ananas comosus var. comosus and A. comosus var. ananassoides, but probable somaclonal variants were detected in two accessions of A. comosus var. bracteatus, when compared to the stock plant in the field. The results allow standardizing an interval of 24 months between subcultures in the accessions evaluated, facilitating management of the bank. This is the first report of the effect of in vitro conservation on the resumed growth, propagative potential and genetic stability of pineapple plants. 650 $aAbacaxi 653 $aPineapple 700 1 $aFERREIRA, C. F. 700 1 $aLEDO, C. A. da S. 700 1 $aSOUZA, E. H. de 700 1 $aSILVA, P. H. da 700 1 $aCOSTA, M. A. P. de C. 700 1 $aSOUZA, F. V. D. 773 $tPlant Cell, Tissue and Organ Culture$gv.127, p.123-133, 2016.
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