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Registro Completo
Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
05/12/2022 |
Data da última atualização: |
05/12/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
RODRIGUES, O.; MINELLA, E.; COSTENARO, E. R.; SCARIOTTO, S.; MARCHESE, J. A. |
Afiliação: |
OSMAR RODRIGUES, CNPT; EUCLYDES MINELLA; EDSON ROBERTO COSTENARO, CNPT; SILVIA SCARIOTTO, Universidade Tecnológica Federal do Paraná/Pato Branco; JOSÉ ABRAMO MARCHESE, Universidade Tecnológica Federal do Paraná/Pato Branco. |
Título: |
Improvement in Brazilian barley breeding: changes in developmental phases and ecophysiological traits. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Frontiers in Plant Science, 25 nov. 2022. |
DOI: |
https://doi.org/10.3389/fpls.2022.1032243 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Despite recognizing the importance of genetic improvement in the production of barley grains, little information is available on the contribution of phenological development to the genetic improvement of Brazilian barley. Field experiments were carried out between 2011 to 2013, in the absence of biotic and abiotic stresses and with preventive lodging control. Five two-rowed spring barley cultivars, released between 1968 and 2008, were evaluated. Although there was no significant association in the cycle length (Emergence - Anthesis) of the cultivars with the year of release, the genetic improvement increased the proportion of the Doble ridge - Maximum number of spikelet primordia/Maximum number of spikelet primordia - anthesis period to the total time to anthesis. The period between DR-MNP was increased in modern cultivars, to the detriment of the Doble ridge - Maximum number of spikelet primordia period. However, the duration of the period between emergences to the double ridge (vegetative phase) was not altered in the analyzed period. Barley breeding in Brazil did not change the total number of leaves on the main stem but caused an increase in the number of leaves earlier in the development, favoring the high level of tillering. The leaf architecture of modern barley was altered towards a more vertical inclination (erectophilic canopy), allowing the penetration of photosynthetically active radiation into the crop canopy. |
Palavras-Chave: |
Developmental phases; Ecofisiologia; Fases de desenvolvimento; Filocrono; Intercepted radiation; LAI; Perfilhamento; Phyllochron; Radiação interceptada. |
Thesagro: |
Cevada; Fenologia; Melhoramento Genético Vegetal; Perfilhação. |
Thesaurus NAL: |
Barley; Genetic improvement; Tillering. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1149185/1/Improvement-in.pdf
|
Marc: |
LEADER 02533naa a2200373 a 4500 001 2149185 005 2022-12-05 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.3389/fpls.2022.1032243$2DOI 100 1 $aRODRIGUES, O. 245 $aImprovement in Brazilian barley breeding$bchanges in developmental phases and ecophysiological traits.$h[electronic resource] 260 $c2022 520 $aAbstract: Despite recognizing the importance of genetic improvement in the production of barley grains, little information is available on the contribution of phenological development to the genetic improvement of Brazilian barley. Field experiments were carried out between 2011 to 2013, in the absence of biotic and abiotic stresses and with preventive lodging control. Five two-rowed spring barley cultivars, released between 1968 and 2008, were evaluated. Although there was no significant association in the cycle length (Emergence - Anthesis) of the cultivars with the year of release, the genetic improvement increased the proportion of the Doble ridge - Maximum number of spikelet primordia/Maximum number of spikelet primordia - anthesis period to the total time to anthesis. The period between DR-MNP was increased in modern cultivars, to the detriment of the Doble ridge - Maximum number of spikelet primordia period. However, the duration of the period between emergences to the double ridge (vegetative phase) was not altered in the analyzed period. Barley breeding in Brazil did not change the total number of leaves on the main stem but caused an increase in the number of leaves earlier in the development, favoring the high level of tillering. The leaf architecture of modern barley was altered towards a more vertical inclination (erectophilic canopy), allowing the penetration of photosynthetically active radiation into the crop canopy. 650 $aBarley 650 $aGenetic improvement 650 $aTillering 650 $aCevada 650 $aFenologia 650 $aMelhoramento Genético Vegetal 650 $aPerfilhação 653 $aDevelopmental phases 653 $aEcofisiologia 653 $aFases de desenvolvimento 653 $aFilocrono 653 $aIntercepted radiation 653 $aLAI 653 $aPerfilhamento 653 $aPhyllochron 653 $aRadiação interceptada 700 1 $aMINELLA, E. 700 1 $aCOSTENARO, E. R. 700 1 $aSCARIOTTO, S. 700 1 $aMARCHESE, J. A. 773 $tFrontiers in Plant Science, 25 nov. 2022.
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