| |
|
|
| Registros recuperados : 407 | |
| Registros recuperados : 407 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Algodão. |
|
Data corrente: |
27/03/2023 |
|
Data da última atualização: |
27/03/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
MARCELINO, A. D. A. de L.; FERNANDES, P. D.; RAMOS, J. P. C.; DUTRA, W. F.; CAVALCANTI, J. J. V.; SANTOS, R. C. dos. |
|
Afiliação: |
ALINE D. A. DE L. MARCELINO, UFPB; PEDRO D. FERNANDES, UFCG; JEAN P. C. RAMOS, UFPB; WELLISON F. DUTRA, UFPB; JOSÉ J. V. CAVALCANTI, CNPA; ROSEANE C. DOS SANTOS, CNPA. |
|
Título: |
Multivariate classification of cotton cultivars tolerant to salt stress. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
Revista Brasileira de Engenharia Agrícola e Ambiental, v. 26, n. 2, p. 266-273, 2022. |
|
ISSN: |
1807-1929 |
|
DOI: |
http://dx.doi.org/10.1590/1807-1929/agriambi.v26n4p266-273 |
|
Idioma: |
Inglês |
|
Conteúdo: |
ABSTRACT: Two multivariate methods were adopted to classify salt-tolerant cotton genotypes based on their growth and physiological traits. The genotypes were cultivated in a greenhouse and subjected to 45 days of irrigation with saline water from the V4 phase onwards. Irrigation was performed with saline water with electrical conductivity (ECw) of 6.0 dS m-1. A factorial-randomized block design was adopted with nine cultivars, two treatments of ECw (0.6 as the control, and 6.0 dS m-1), and four replicates. Plants were evaluated for growth, gas exchange, and photosynthesis. The data were statistically analyzed using univariate and multivariate methods. For the latter, non-hierarchical (principal component, PC) and hierarchical (UPGMA) models were used for the classification of cultivars. Significant differences were found between cultivars based on univariate analyses, and the traits that differed statistically were used for multivariate analyses. Four groups were identified with the same composition in both the PC and UPGMA methods. Among them, one contained the cultivars BRS Seridó, BRS 286, FMT 705, and BRS Rubi, which were tolerant to salt stress imposed on the plants. Photosynthesis, transpiration, and stomatal conductance data were the main contributors to the classification of cultivars using the principal component method. Dois métodos multivariados foram adotados para classificar genótipos de algodoeiro tolerantes ao sal com base no crescimento e nas características fisiológicas. Os genótipos foram cultivados em casa de vegetação e submetidos a 45 dias de irrigação com água salina, a partir da fase V4. A irrigação foi feita com água salina com CEa de 6,0 dS m-1. O delineamento experimental foi em blocos casualizados com fatorial, sendo nove cultivares, dois tratamentos (controle: 0,6 e 6,0 dS m-1) e quatro repetições. As plantas foram avaliadas quanto a variáveis de crescimento e fisiológicas. Os dados foram analisados estatisticamente por meio de analises univariada e multivariada. Nesse último, os modelos não hierárquicos (componentes principais, CP) e hierárquico (UPGMA) foram usados para classificação das cultivares. Diferenças significativas foram encontradas entre as cultivares com base nas análises univariadas. As variáveis que diferiram estatisticamente foram usadas para as análises multivariadas. Quatro grupos foram identificados com a mesma composição nos métodos PC e UPGMA. Entre eles, um conteve as cultivares BRS Seridó, BRS 286, FMT 705 e BRS Rubi, que se mostraram tolerantes ao estresse salino imposto as plantas. Os dados de fotossíntese, transpiração e condutância estomática foram os mais contributivos para classificação das cultivares, pelo método das componentes principais. MenosABSTRACT: Two multivariate methods were adopted to classify salt-tolerant cotton genotypes based on their growth and physiological traits. The genotypes were cultivated in a greenhouse and subjected to 45 days of irrigation with saline water from the V4 phase onwards. Irrigation was performed with saline water with electrical conductivity (ECw) of 6.0 dS m-1. A factorial-randomized block design was adopted with nine cultivars, two treatments of ECw (0.6 as the control, and 6.0 dS m-1), and four replicates. Plants were evaluated for growth, gas exchange, and photosynthesis. The data were statistically analyzed using univariate and multivariate methods. For the latter, non-hierarchical (principal component, PC) and hierarchical (UPGMA) models were used for the classification of cultivars. Significant differences were found between cultivars based on univariate analyses, and the traits that differed statistically were used for multivariate analyses. Four groups were identified with the same composition in both the PC and UPGMA methods. Among them, one contained the cultivars BRS Seridó, BRS 286, FMT 705, and BRS Rubi, which were tolerant to salt stress imposed on the plants. Photosynthesis, transpiration, and stomatal conductance data were the main contributors to the classification of cultivars using the principal component method. Dois métodos multivariados foram adotados para classificar genótipos de algodoeiro tolerantes ao sal com base no crescimento e nas características ... Mostrar Tudo |
|
Palavras-Chave: |
Agrupamento; Clustering; Estresse osmótico; Trocas gasosas. |
|
Thesagro: |
Água Salobra; Algodão; Gossypium Hirsutum. |
|
Thesaurus NAL: |
Cotton; Osmotic stress; Salt concentration. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152799/1/MULTIVARIATE-CLASSIFICATION-COTTON-CULTIVARS.pdf
|
|
Marc: |
LEADER 03775naa a2200325 a 4500
001 2152799
005 2023-03-27
008 2022 bl uuuu u00u1 u #d
022 $a1807-1929
024 7 $ahttp://dx.doi.org/10.1590/1807-1929/agriambi.v26n4p266-273$2DOI
100 1 $aMARCELINO, A. D. A. de L.
245 $aMultivariate classification of cotton cultivars tolerant to salt stress.$h[electronic resource]
260 $c2022
520 $aABSTRACT: Two multivariate methods were adopted to classify salt-tolerant cotton genotypes based on their growth and physiological traits. The genotypes were cultivated in a greenhouse and subjected to 45 days of irrigation with saline water from the V4 phase onwards. Irrigation was performed with saline water with electrical conductivity (ECw) of 6.0 dS m-1. A factorial-randomized block design was adopted with nine cultivars, two treatments of ECw (0.6 as the control, and 6.0 dS m-1), and four replicates. Plants were evaluated for growth, gas exchange, and photosynthesis. The data were statistically analyzed using univariate and multivariate methods. For the latter, non-hierarchical (principal component, PC) and hierarchical (UPGMA) models were used for the classification of cultivars. Significant differences were found between cultivars based on univariate analyses, and the traits that differed statistically were used for multivariate analyses. Four groups were identified with the same composition in both the PC and UPGMA methods. Among them, one contained the cultivars BRS Seridó, BRS 286, FMT 705, and BRS Rubi, which were tolerant to salt stress imposed on the plants. Photosynthesis, transpiration, and stomatal conductance data were the main contributors to the classification of cultivars using the principal component method. Dois métodos multivariados foram adotados para classificar genótipos de algodoeiro tolerantes ao sal com base no crescimento e nas características fisiológicas. Os genótipos foram cultivados em casa de vegetação e submetidos a 45 dias de irrigação com água salina, a partir da fase V4. A irrigação foi feita com água salina com CEa de 6,0 dS m-1. O delineamento experimental foi em blocos casualizados com fatorial, sendo nove cultivares, dois tratamentos (controle: 0,6 e 6,0 dS m-1) e quatro repetições. As plantas foram avaliadas quanto a variáveis de crescimento e fisiológicas. Os dados foram analisados estatisticamente por meio de analises univariada e multivariada. Nesse último, os modelos não hierárquicos (componentes principais, CP) e hierárquico (UPGMA) foram usados para classificação das cultivares. Diferenças significativas foram encontradas entre as cultivares com base nas análises univariadas. As variáveis que diferiram estatisticamente foram usadas para as análises multivariadas. Quatro grupos foram identificados com a mesma composição nos métodos PC e UPGMA. Entre eles, um conteve as cultivares BRS Seridó, BRS 286, FMT 705 e BRS Rubi, que se mostraram tolerantes ao estresse salino imposto as plantas. Os dados de fotossíntese, transpiração e condutância estomática foram os mais contributivos para classificação das cultivares, pelo método das componentes principais.
650 $aCotton
650 $aOsmotic stress
650 $aSalt concentration
650 $aÁgua Salobra
650 $aAlgodão
650 $aGossypium Hirsutum
653 $aAgrupamento
653 $aClustering
653 $aEstresse osmótico
653 $aTrocas gasosas
700 1 $aFERNANDES, P. D.
700 1 $aRAMOS, J. P. C.
700 1 $aDUTRA, W. F.
700 1 $aCAVALCANTI, J. J. V.
700 1 $aSANTOS, R. C. dos
773 $tRevista Brasileira de Engenharia Agrícola e Ambiental$gv. 26, n. 2, p. 266-273, 2022.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Algodão (CNPA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
