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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
21/02/2014 |
Actualizado : |
11/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
ZORRILLA DE SAN MARTÍN, G.; KNAPP, A.D.; MCGEE, D.C. |
Afiliación : |
GONZALO ROBERTO ZORRILLA DE SAN MARTÍN PEREYRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Severity of phomopsis seed decay, seed quality evaluation and field performance of soybean. |
Fecha de publicación : |
1994 |
Fuente / Imprenta : |
Crop Science, 1994, v. 34, p. 172-177. |
DOI : |
10.2135/cropsci1994.0011183X003400010031x |
Idioma : |
Inglés |
Notas : |
Article history: Received: July 13, 1992 // Published: Jan, 1994. |
Contenido : |
The ability of seed quality tests to predict field performance of soybean seed lots with different incidences of infection by the causal agents of phomopsis seed decay (PD), was evaluated. Different seed infection levels were induced in one ‘Corsoy 79’ soybean seed lot by exposing naturally infected pods to 0, 3, 4, or 5 d at >95% relative humidity and 25 °C. Seeds were then removed from pods and dried. Seed quality wase valuated by germination tests on creped cellulose wadding (Kimpac), rolled towel, and sand and by cold, accelerated aging (A.Aging), tetrazolium (TZ), and conductivity tests. Field emergence of these seeds was evaluated at two locations and two 1991 planting dates in Iowa. Differences between laboratory germination test results for seeds with low (6.4 and 11.5%) infection levels were minor. At higher infection levels (18.2 and 32.4%), test differences were as large as 23%.P homopsis-diaporthine fection was located primarilyin the seed coat with lesser infection levels in cotyledons. Cotyledonary infection was not associated with variation in test results, but seed coat infection was, as evidenced by greater numbers of infected-abnormal seedlings in Kimpac and towel tests than in other tests. Field emergence declined with increasing PD seed infection at all sites and planting dates. Kimpac, towel, sand, A.Aging, and cold tests gave good estimates of field emergence at seed infection levels to 18.2%, but at 32.4% infection, Kimpac and towel tests underestimated field emergence. Tetrazolium and conductivity tests overestimated seed quality at low and high infection levels. MenosThe ability of seed quality tests to predict field performance of soybean seed lots with different incidences of infection by the causal agents of phomopsis seed decay (PD), was evaluated. Different seed infection levels were induced in one ‘Corsoy 79’ soybean seed lot by exposing naturally infected pods to 0, 3, 4, or 5 d at >95% relative humidity and 25 °C. Seeds were then removed from pods and dried. Seed quality wase valuated by germination tests on creped cellulose wadding (Kimpac), rolled towel, and sand and by cold, accelerated aging (A.Aging), tetrazolium (TZ), and conductivity tests. Field emergence of these seeds was evaluated at two locations and two 1991 planting dates in Iowa. Differences between laboratory germination test results for seeds with low (6.4 and 11.5%) infection levels were minor. At higher infection levels (18.2 and 32.4%), test differences were as large as 23%.P homopsis-diaporthine fection was located primarilyin the seed coat with lesser infection levels in cotyledons. Cotyledonary infection was not associated with variation in test results, but seed coat infection was, as evidenced by greater numbers of infected-abnormal seedlings in Kimpac and towel tests than in other tests. Field emergence declined with increasing PD seed infection at all sites and planting dates. Kimpac, towel, sand, A.Aging, and cold tests gave good estimates of field emergence at seed infection levels to 18.2%, but at 32.4% infection, Kimpac and towel tests underestimate... Presentar Todo |
Thesagro : |
CALIDAD; ENFERMEDADES DE LAS PLANTAS; SEMILLAS; SOJA. |
Asunto categoría : |
-- |
Marc : |
LEADER 02300naa a2200217 a 4500 001 1032967 005 2019-10-11 008 1994 bl uuuu u00u1 u #d 024 7 $a10.2135/cropsci1994.0011183X003400010031x$2DOI 100 1 $aZORRILLA DE SAN MARTÍN, G. 245 $aSeverity of phomopsis seed decay, seed quality evaluation and field performance of soybean. 260 $c1994 500 $aArticle history: Received: July 13, 1992 // Published: Jan, 1994. 520 $aThe ability of seed quality tests to predict field performance of soybean seed lots with different incidences of infection by the causal agents of phomopsis seed decay (PD), was evaluated. Different seed infection levels were induced in one ‘Corsoy 79’ soybean seed lot by exposing naturally infected pods to 0, 3, 4, or 5 d at >95% relative humidity and 25 °C. Seeds were then removed from pods and dried. Seed quality wase valuated by germination tests on creped cellulose wadding (Kimpac), rolled towel, and sand and by cold, accelerated aging (A.Aging), tetrazolium (TZ), and conductivity tests. Field emergence of these seeds was evaluated at two locations and two 1991 planting dates in Iowa. Differences between laboratory germination test results for seeds with low (6.4 and 11.5%) infection levels were minor. At higher infection levels (18.2 and 32.4%), test differences were as large as 23%.P homopsis-diaporthine fection was located primarilyin the seed coat with lesser infection levels in cotyledons. Cotyledonary infection was not associated with variation in test results, but seed coat infection was, as evidenced by greater numbers of infected-abnormal seedlings in Kimpac and towel tests than in other tests. Field emergence declined with increasing PD seed infection at all sites and planting dates. Kimpac, towel, sand, A.Aging, and cold tests gave good estimates of field emergence at seed infection levels to 18.2%, but at 32.4% infection, Kimpac and towel tests underestimated field emergence. Tetrazolium and conductivity tests overestimated seed quality at low and high infection levels. 650 $aCALIDAD 650 $aENFERMEDADES DE LAS PLANTAS 650 $aSEMILLAS 650 $aSOJA 700 1 $aKNAPP, A.D. 700 1 $aMCGEE, D.C. 773 $tCrop Science, 1994$gv. 34, p. 172-177.
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
Fecha actual : |
21/02/2014 |
Actualizado : |
15/03/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
Circulación / Nivel : |
B - 5 |
Autor : |
PEREYRA, S.; DILL-MACKY, R. |
Afiliación : |
SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Fusarium species recovered from wheat and barley grains in Uruguay, pathogenicity and deoxynivalenol content. [Especies de Fusarium recuperadas de granos de trigo y
cebada en Uruguay, patogenicidad y contenido de deoxinivalenol]. |
Fecha de publicación : |
2010 |
Fuente / Imprenta : |
Agrociencia Uruguay, 2010, v. 14, no. 2, p. 33-44 |
Idioma : |
Inglés |
Notas : |
Article history: Recibido 18/8/09 // Aceptado 27/8/10. |
Contenido : |
SUMMARY.
Grain samples from five wheat and five barley cultivars from different locations and planting dates were examined for the presence of Fusarium species. Fusarium graminearum was the primary species associated with FHB (Fusarium head blight). It comprised 76 % and 60 % of all Fusarium species isolated from wheat grains in 2001 and 2002, respectively. Fusarium graminearum represented 65 % and 56 % of all Fusarium species isolated from barley grains in 2001 and 2002, respectively. The frequencies with which Fusarium species other
than F. graminearum were recovered varied depending on both environment and host cultivar. In general, F. avenaceum, F. culmorum and F. poae were the following most common species isolated from wheat grains, whereas F. equiseti, F. acuminatum, and F. trincictum were less frequently isolated. Fusarium poae and F. equiseti were the most common species isolated from barley grains after F. graminearum. Other Fusarium species recovered in barley grains included F. avenaceum, F. sambucinum, F. trincictum, F. semitectum, and F. chlamydosporum. All species were pathogenic on wheat and barley in inoculation tests in the greenhouse, except F. semitectum on wheat. Greater FHB severity and incidence on wheat and barley spikes were obtained with the F. graminearum isolates, followed by F. avenaceum and F. poae. Cultivars previously characterized as moderately resistant to moderately susceptible showed the lowest FHB incidences, severities, percentages of Fusariuminfested grains, and grains infested with F. graminearum in this field study. Data from this study raise the concern of the possible presence of mycotoxins other than DON (deoxynivalenol) in wheat and barley grains.
RESUMEN.
Se examinaron granos provenientes de cinco cultivares de trigo y cinco de cebada, de distintas localidades y fechas de siembra, por la presencia de especies de Fusarium. Fusarium graminearum fue la especie predominantemente asociada a FE (Fusariosis de la espiga) tanto en trigo como en cebada. La misma constituyó el 76 % y 60 % de todas las especies de Fusarium aisladas de los granos de trigo en 2001 y 2002, respectivamente y representó el 65 % y 56 % del total de especies obtenidas en granos de cebada en 2001 y 2002, respectivamente. La frecuencia de aislamiento de especies diferentes a F. graminearum varió dependiendo del ambiente y cultivar. En general, F. avenaceum, F. culmorum y F. poae fueron las especies más comúnmente obtenidas a partir de granos de trigo, mientras que F. equiseti, F. acuminatum y F. trincictum fueron las que se aislaron en menor frecuencia. En los granos de cebada, las especies más frecuentemente recuperadas luego de F. graminearum, fueron F. poae y F. equiseti. Otras especies recuperadas de cebada incluyeron a F. avenaceum, F. sambucinum, F. trincictum, F. semitectum y F. chlamydosporum. Todas las especies fueron patogénicas sobre espigas de trigo y cebada en los estudios de inoculación en el invernáculo, excepto F. semitectum en trigo. Las mayores severidades e incidencias de FE en las espigas de trigo y cebada se obtuvieron con los aislamientos de F. graminearum, seguidas por los de F. avenaceum y F. poae. Los cultivares previamente caracterizados como moderadamente resistentes a moderadamente susceptibles mostraron los menores niveles de incidencia y severidad de FE, porcentaje de granos infectados con Fusarium y granos infectados con F. graminearum. La información obtenida en este trabajo plantea preocupación en relación a la posible presencia de otras micotoxinas diferentes a DON (deoxinivalenol) en los granos de trigo y cebada en el país. MenosSUMMARY.
Grain samples from five wheat and five barley cultivars from different locations and planting dates were examined for the presence of Fusarium species. Fusarium graminearum was the primary species associated with FHB (Fusarium head blight). It comprised 76 % and 60 % of all Fusarium species isolated from wheat grains in 2001 and 2002, respectively. Fusarium graminearum represented 65 % and 56 % of all Fusarium species isolated from barley grains in 2001 and 2002, respectively. The frequencies with which Fusarium species other
than F. graminearum were recovered varied depending on both environment and host cultivar. In general, F. avenaceum, F. culmorum and F. poae were the following most common species isolated from wheat grains, whereas F. equiseti, F. acuminatum, and F. trincictum were less frequently isolated. Fusarium poae and F. equiseti were the most common species isolated from barley grains after F. graminearum. Other Fusarium species recovered in barley grains included F. avenaceum, F. sambucinum, F. trincictum, F. semitectum, and F. chlamydosporum. All species were pathogenic on wheat and barley in inoculation tests in the greenhouse, except F. semitectum on wheat. Greater FHB severity and incidence on wheat and barley spikes were obtained with the F. graminearum isolates, followed by F. avenaceum and F. poae. Cultivars previously characterized as moderately resistant to moderately susceptible showed the lowest FHB incidences, severities, percentages of Fu... Presentar Todo |
Palabras claves : |
FUSARIUM HEAD BLIGHT. |
Thesagro : |
DEOXINIVALENOL; FUSARIOSIS DE LA ESPIGA; FUSARIUM GRAMINEARUM; HORDEUM VULGARE; TRITICUM AESTIVUM. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12176/1/14432171110153039-p.33-44.pdf
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Marc : |
LEADER 04460naa a2200217 a 4500 001 1013137 005 2021-03-15 008 2010 bl uuuu u00u1 u #d 100 1 $aPEREYRA, S. 245 $aFusarium species recovered from wheat and barley grains in Uruguay, pathogenicity and deoxynivalenol content. [Especies de Fusarium recuperadas de granos de trigo y cebada en Uruguay, patogenicidad y contenido de deoxinivalenol]. 260 $c2010 500 $aArticle history: Recibido 18/8/09 // Aceptado 27/8/10. 520 $aSUMMARY. Grain samples from five wheat and five barley cultivars from different locations and planting dates were examined for the presence of Fusarium species. Fusarium graminearum was the primary species associated with FHB (Fusarium head blight). It comprised 76 % and 60 % of all Fusarium species isolated from wheat grains in 2001 and 2002, respectively. Fusarium graminearum represented 65 % and 56 % of all Fusarium species isolated from barley grains in 2001 and 2002, respectively. The frequencies with which Fusarium species other than F. graminearum were recovered varied depending on both environment and host cultivar. In general, F. avenaceum, F. culmorum and F. poae were the following most common species isolated from wheat grains, whereas F. equiseti, F. acuminatum, and F. trincictum were less frequently isolated. Fusarium poae and F. equiseti were the most common species isolated from barley grains after F. graminearum. Other Fusarium species recovered in barley grains included F. avenaceum, F. sambucinum, F. trincictum, F. semitectum, and F. chlamydosporum. All species were pathogenic on wheat and barley in inoculation tests in the greenhouse, except F. semitectum on wheat. Greater FHB severity and incidence on wheat and barley spikes were obtained with the F. graminearum isolates, followed by F. avenaceum and F. poae. Cultivars previously characterized as moderately resistant to moderately susceptible showed the lowest FHB incidences, severities, percentages of Fusariuminfested grains, and grains infested with F. graminearum in this field study. Data from this study raise the concern of the possible presence of mycotoxins other than DON (deoxynivalenol) in wheat and barley grains. RESUMEN. Se examinaron granos provenientes de cinco cultivares de trigo y cinco de cebada, de distintas localidades y fechas de siembra, por la presencia de especies de Fusarium. Fusarium graminearum fue la especie predominantemente asociada a FE (Fusariosis de la espiga) tanto en trigo como en cebada. La misma constituyó el 76 % y 60 % de todas las especies de Fusarium aisladas de los granos de trigo en 2001 y 2002, respectivamente y representó el 65 % y 56 % del total de especies obtenidas en granos de cebada en 2001 y 2002, respectivamente. La frecuencia de aislamiento de especies diferentes a F. graminearum varió dependiendo del ambiente y cultivar. En general, F. avenaceum, F. culmorum y F. poae fueron las especies más comúnmente obtenidas a partir de granos de trigo, mientras que F. equiseti, F. acuminatum y F. trincictum fueron las que se aislaron en menor frecuencia. En los granos de cebada, las especies más frecuentemente recuperadas luego de F. graminearum, fueron F. poae y F. equiseti. Otras especies recuperadas de cebada incluyeron a F. avenaceum, F. sambucinum, F. trincictum, F. semitectum y F. chlamydosporum. Todas las especies fueron patogénicas sobre espigas de trigo y cebada en los estudios de inoculación en el invernáculo, excepto F. semitectum en trigo. Las mayores severidades e incidencias de FE en las espigas de trigo y cebada se obtuvieron con los aislamientos de F. graminearum, seguidas por los de F. avenaceum y F. poae. Los cultivares previamente caracterizados como moderadamente resistentes a moderadamente susceptibles mostraron los menores niveles de incidencia y severidad de FE, porcentaje de granos infectados con Fusarium y granos infectados con F. graminearum. La información obtenida en este trabajo plantea preocupación en relación a la posible presencia de otras micotoxinas diferentes a DON (deoxinivalenol) en los granos de trigo y cebada en el país. 650 $aDEOXINIVALENOL 650 $aFUSARIOSIS DE LA ESPIGA 650 $aFUSARIUM GRAMINEARUM 650 $aHORDEUM VULGARE 650 $aTRITICUM AESTIVUM 653 $aFUSARIUM HEAD BLIGHT 700 1 $aDILL-MACKY, R. 773 $tAgrociencia Uruguay, 2010$gv. 14, no. 2, p. 33-44
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