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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
08/09/2014 |
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Actualizado : |
04/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
HOFFMAN, E.; VIEGA, L.; GLISON, N.; CASTRO, A.; PEREYRA, S.; PÉREZ, C. |
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Afiliación : |
SILVIA ANTONIA PEREYRA CORREA, INIA La Estanzuela. |
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Título : |
Differential effects of spot blotch on photosynthesis and grain yield in two barley cultivars. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
European Journal of Plant Pathology, v. 139, n. 3, p. 471-480, 2014. |
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ISSN : |
0929-1873. |
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DOI : |
10.1007/s10658-014-0404-y |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted: 12 February 2014 /Published online: 27 February 2014. |
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Contenido : |
ABSTRACT.
Barley spot blotch (SB), caused by Cochliobolus sativus, is an important barley disease which causes extensive grain yield losses. These losses may not always correlate directly with the amount of diseased leaf area. Two barley cultivars, Quebracho (susceptible to SB) and Carumbé (with intermediate susceptibility to SB), were compared in field experiments in 2003, 2004 and 2006. Plots of each cultivar were either inoculated with C. sativus or protected with fungicide under field conditions to generate contrasting treatments: i) diseased, and ii) free of disease, respectively. SB severity over the growing season, photosynthetic rate on leaves with no visible symptoms and grain yield were assessed for each treatment and year. There was no treatment effect on cv. Carumbé, while cv. Quebracho showed a significant yield reduction, even though SB severity during the grain filling period was <10 %. This yield reduction was associated with a reduced photosynthetic rate at the beginning of the grain filling period in cv. Quebracho. A similar experiment was conducted under greenhouse conditions, adding a treatment without inoculum or fungicide. There were no differences in photosynthetic rate or grain yield per plant among treatments. These results suggest a distinct physiological response to SB infection among cultivars affecting leaf photosynthetic rate, and SB severity may not be the best estimator of yield losses caused by SB. |
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Palabras claves : |
COCHLIOBOLUS SATIVUS; HORDEUM; PHOTOSYNTHESIS; RENDIMIENTO EN GRANO; YIELD LOSSES. |
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Thesagro : |
FITOPATOLOGÍA. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02358naa a2200289 a 4500
001 1050032
005 2019-10-04
008 2014 bl uuuu u00u1 u #d
022 $a0929-1873.
024 7 $a10.1007/s10658-014-0404-y$2DOI
100 1 $aHOFFMAN, E.
245 $aDifferential effects of spot blotch on photosynthesis and grain yield in two barley cultivars.$h[electronic resource]
260 $c2014
500 $aArticle history: Accepted: 12 February 2014 /Published online: 27 February 2014.
520 $aABSTRACT. Barley spot blotch (SB), caused by Cochliobolus sativus, is an important barley disease which causes extensive grain yield losses. These losses may not always correlate directly with the amount of diseased leaf area. Two barley cultivars, Quebracho (susceptible to SB) and Carumbé (with intermediate susceptibility to SB), were compared in field experiments in 2003, 2004 and 2006. Plots of each cultivar were either inoculated with C. sativus or protected with fungicide under field conditions to generate contrasting treatments: i) diseased, and ii) free of disease, respectively. SB severity over the growing season, photosynthetic rate on leaves with no visible symptoms and grain yield were assessed for each treatment and year. There was no treatment effect on cv. Carumbé, while cv. Quebracho showed a significant yield reduction, even though SB severity during the grain filling period was <10 %. This yield reduction was associated with a reduced photosynthetic rate at the beginning of the grain filling period in cv. Quebracho. A similar experiment was conducted under greenhouse conditions, adding a treatment without inoculum or fungicide. There were no differences in photosynthetic rate or grain yield per plant among treatments. These results suggest a distinct physiological response to SB infection among cultivars affecting leaf photosynthetic rate, and SB severity may not be the best estimator of yield losses caused by SB.
650 $aFITOPATOLOGÍA
653 $aCOCHLIOBOLUS SATIVUS
653 $aHORDEUM
653 $aPHOTOSYNTHESIS
653 $aRENDIMIENTO EN GRANO
653 $aYIELD LOSSES
700 1 $aVIEGA, L.
700 1 $aGLISON, N.
700 1 $aCASTRO, A.
700 1 $aPEREYRA, S.
700 1 $aPÉREZ, C.
773 $tEuropean Journal of Plant Pathology$gv. 139, n. 3, p. 471-480, 2014.
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Registro original : |
INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
24/03/2021 |
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Actualizado : |
14/06/2021 |
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Tipo de producción científica : |
Artículos Indexados |
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Autor : |
MARQUES, L. O. D.; MELO-FARIAS, P.; OLIVEIRA, R. P. DE; DINI, M.; SOARES FILHO, W. S.; MALGARIM, M. B. |
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Afiliación : |
LÉO O. D. MARQUES, Departament of Horticulture and Crop Science, Faculty of Agronomy Eliseu Maciel, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil; PAULO MELLO-FARIAS, Departament of Horticulture and Crop Science, Faculty of Agronomy Eliseu Maciel, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil; ROBERTO P. DE OLIVEIRA, Embrapa Temperate Climate, Pelotas, Rio Grande do Sul, Brazil; MAXIMILIANO ANTONIO DINI VIÑOLY, Departament of Horticulture and Crop Science, Faculty of Agronomy Eliseu Maciel, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil; WALTER S. SOARES FILHO, Embrapa Cassava and Fruit Science, Cruz das Almas, Bahia, Brazil; MARCELO B. MALGARIM, Departament of Horticulture and Crop Science, Faculty of Agronomy Eliseu Maciel, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil. |
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Título : |
Emergence percentage and speed of rootstocks for citriculture in south of Brazil. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Journal of Agricultural Science, 2019, v. 11, n. 5, p. 49-57. Doi: https://doi.org/10.5539/jas.v11n5p49 |
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ISSN : |
1916-9752 E-ISSN 1916-9760 |
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DOI : |
10.5539/jas.v11n5p49 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: January 21, 2019; Accepted: February 27, 2019; Online Published: April 15, 2019.
This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-Brazil (CAPES)-Finance Code 001. |
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Contenido : |
ABSTRACT.
The fact that Brazilian citriculture has focused on few rootstocks poses several phytosanitary risks to the culture and has made genetic improvement programs develop hybrid genotypes to be used as novel alternatives. This study aimed at evaluating the behavior of 42 different rootstocks regarding their emergence percentage and speed in weather conditions experienced in the extreme south of Brazil. Seeds of hybrids developed by the Citrus Genetic Improvement Program (PMG Citros) at the Embrapa Mandioca e Fruticultura (PMG Citros) and cultivars from other citrus growing regions were sown in conical tubes filled with commercial substrate in May 2017. A thoroughly randomized design with 4 replicates, each composed of 45 sampling units, was employed. Emergence percentage and emergence speed of every genotype were evaluated and the ones with the highest emergence percentage of seedlings and the ones with the most precocious emergence were identified. All genotypes completed seedling emergence 98 days after sowing. Seeds of Trifoliata, TSKC × CTSW-041 and TSKC × CTSW-025 had the highest values of seedling emergence whereas the highest emergence speed indexes were exhibited by genotypes Trifoliata and lemon tree 'Cravo'. |
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Palabras claves : |
Adaptation; Diversification; Improvement; Seedlings. |
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Thesagro : |
CITRUS; CITRUS spp. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15383/1/Marques-et-al.-2019.-Emergence-Percentage-and-Speed-of-Rootstocks-JAS.pdf
http://www.ccsenet.org/journal/index.php/jas/article/download/0/0/39038/39794.pdf
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Marc : |
LEADER 02347naa a2200289 a 4500
001 1061859
005 2021-06-14
008 2019 bl uuuu u00u1 u #d
022 $a1916-9752 E-ISSN 1916-9760
024 7 $a10.5539/jas.v11n5p49$2DOI
100 1 $aMARQUES, L. O. D.
245 $aEmergence percentage and speed of rootstocks for citriculture in south of Brazil.$h[electronic resource]
260 $c2019
500 $aArticle history: Received: January 21, 2019; Accepted: February 27, 2019; Online Published: April 15, 2019. This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-Brazil (CAPES)-Finance Code 001.
520 $aABSTRACT. The fact that Brazilian citriculture has focused on few rootstocks poses several phytosanitary risks to the culture and has made genetic improvement programs develop hybrid genotypes to be used as novel alternatives. This study aimed at evaluating the behavior of 42 different rootstocks regarding their emergence percentage and speed in weather conditions experienced in the extreme south of Brazil. Seeds of hybrids developed by the Citrus Genetic Improvement Program (PMG Citros) at the Embrapa Mandioca e Fruticultura (PMG Citros) and cultivars from other citrus growing regions were sown in conical tubes filled with commercial substrate in May 2017. A thoroughly randomized design with 4 replicates, each composed of 45 sampling units, was employed. Emergence percentage and emergence speed of every genotype were evaluated and the ones with the highest emergence percentage of seedlings and the ones with the most precocious emergence were identified. All genotypes completed seedling emergence 98 days after sowing. Seeds of Trifoliata, TSKC × CTSW-041 and TSKC × CTSW-025 had the highest values of seedling emergence whereas the highest emergence speed indexes were exhibited by genotypes Trifoliata and lemon tree 'Cravo'.
650 $aCITRUS
650 $aCITRUS spp
653 $aAdaptation
653 $aDiversification
653 $aImprovement
653 $aSeedlings
700 1 $aMELO-FARIAS, P.
700 1 $aOLIVEIRA, R. P. DE
700 1 $aDINI, M.
700 1 $aSOARES FILHO, W. S.
700 1 $aMALGARIM, M. B.
773 $tJournal of Agricultural Science, 2019$gv. 11, n. 5, p. 49-57. Doi: https://doi.org/10.5539/jas.v11n5p49
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