Improvement in Brazilian barley breeding: Changes in developmental phases and ecophysiological traits
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 bio...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2022.1032243/full |
| _version_ | 1797987185607049216 |
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| author | Osmar Rodrigues Euclydes Minella Edson Roberto Costenaro Silvia Scariotto José Abramo Marchese |
| author_facet | Osmar Rodrigues Euclydes Minella Edson Roberto Costenaro Silvia Scariotto José Abramo Marchese |
| author_sort | Osmar Rodrigues |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-11T07:43:49Z |
| format | Article |
| id | doaj.art-52bddde52d59441ba2d767467b566d46 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-11T07:43:49Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-52bddde52d59441ba2d767467b566d462022-12-22T04:36:21ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2022-11-011310.3389/fpls.2022.10322431032243Improvement in Brazilian barley breeding: Changes in developmental phases and ecophysiological traitsOsmar Rodrigues0Euclydes Minella1Edson Roberto Costenaro2Silvia Scariotto3José Abramo Marchese4Brazilian Agricultural Research Corporation, Embrapa Wheat, Passo Fundo, RS, BrazilBrazilian Agricultural Research Corporation, Embrapa Wheat, Passo Fundo, RS, BrazilBrazilian Agricultural Research Corporation, Embrapa Wheat, Passo Fundo, RS, BrazilDepartment of Agronomy, Federal University of Technology – Parana (UTFPR), Pato Branco, PR, BrazilDepartment of Agronomy, Federal University of Technology – Parana (UTFPR), Pato Branco, PR, BrazilDespite 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.https://www.frontiersin.org/articles/10.3389/fpls.2022.1032243/fulldevelopmental phasesintercepted radiationLAIphyllochrontillering |
| spellingShingle | Osmar Rodrigues Euclydes Minella Edson Roberto Costenaro Silvia Scariotto José Abramo Marchese Improvement in Brazilian barley breeding: Changes in developmental phases and ecophysiological traits Frontiers in Plant Science developmental phases intercepted radiation LAI phyllochron tillering |
| title | Improvement in Brazilian barley breeding: Changes in developmental phases and ecophysiological traits |
| title_full | Improvement in Brazilian barley breeding: Changes in developmental phases and ecophysiological traits |
| title_fullStr | Improvement in Brazilian barley breeding: Changes in developmental phases and ecophysiological traits |
| title_full_unstemmed | Improvement in Brazilian barley breeding: Changes in developmental phases and ecophysiological traits |
| title_short | Improvement in Brazilian barley breeding: Changes in developmental phases and ecophysiological traits |
| title_sort | improvement in brazilian barley breeding changes in developmental phases and ecophysiological traits |
| topic | developmental phases intercepted radiation LAI phyllochron tillering |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2022.1032243/full |
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