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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
18/03/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
B - 1 |
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Autor : |
IBÁÑEZ, F.; ZOPPOLO, R. |
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Afiliación : |
FACUNDO IBÁÑEZ SILVA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROBERTO JOSE ZOPPOLO GOLDSCHMIDT, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Assessment of allelopathic properties of Baccharis dracunculifolia DC in laboratory and field conditions. |
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Fecha de publicación : |
2011 |
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Fuente / Imprenta : |
Allelopathy Journal, 2011, v.28, no. 1, p.77-86. |
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Descripción física : |
2-s2.0-80052850810 |
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ISSN : |
0971-4693 |
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Idioma : |
Español
Inglés |
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Notas : |
Article history: Received in revised form: April 16, 2011. |
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Contenido : |
ABSTRACT.
In plantations of B. dracunculifolia, a noticeable decrease in diversity and development of monocots species was observed. Hence, phytotoxic studies were done to determine the in vitro toxicity of essential oils of B. dracunculifolia on monocot (Lolium multiflorum) and dicot (Lactuca sativa). The essential oil at concentration of 1000 mg/L drastically decreased the hypocotyl growth of L. multiflorum (90%) and L. sativa (60%). The analysis of essential oil by gas chromatography showed a high percentage of compounds with phytotoxic effects, such as limonene, α and β-pinene. The field experiments showed that the inhibition under B. dracunculifolia was not due to the effect of shading nor to nutrient competition. The reduction in germination of L. multiflorum under B. dracunculifolia was > 90%. In the soil under the plantation, a high concentration of phenolics was measured (15mg/100g of soil). These results indicate that allelopathic activity of B. dracunculifolia may be explained through a combination of phytotoxic effects (emission of volatile compounds and the accumulation of phenolics in the soil profile). |
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Thesagro : |
ACEITES ESENCIALES; ALELOPATÍA; FITOTOXICIDAD; LACTUCA SATIVA. |
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Asunto categoría : |
--
F30 Genética vegetal y fitomejoramiento |
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Marc : |
LEADER 01809naa a2200217 a 4500
001 1012807
005 2022-03-18
008 2011 bl uuuu u00u1 u #d
022 $a0971-4693
100 1 $aIBÁÑEZ, F.
245 $aAssessment of allelopathic properties of Baccharis dracunculifolia DC in laboratory and field conditions.
260 $c2011
300 $c2-s2.0-80052850810
500 $aArticle history: Received in revised form: April 16, 2011.
520 $aABSTRACT. In plantations of B. dracunculifolia, a noticeable decrease in diversity and development of monocots species was observed. Hence, phytotoxic studies were done to determine the in vitro toxicity of essential oils of B. dracunculifolia on monocot (Lolium multiflorum) and dicot (Lactuca sativa). The essential oil at concentration of 1000 mg/L drastically decreased the hypocotyl growth of L. multiflorum (90%) and L. sativa (60%). The analysis of essential oil by gas chromatography showed a high percentage of compounds with phytotoxic effects, such as limonene, α and β-pinene. The field experiments showed that the inhibition under B. dracunculifolia was not due to the effect of shading nor to nutrient competition. The reduction in germination of L. multiflorum under B. dracunculifolia was > 90%. In the soil under the plantation, a high concentration of phenolics was measured (15mg/100g of soil). These results indicate that allelopathic activity of B. dracunculifolia may be explained through a combination of phytotoxic effects (emission of volatile compounds and the accumulation of phenolics in the soil profile).
650 $aACEITES ESENCIALES
650 $aALELOPATÍA
650 $aFITOTOXICIDAD
650 $aLACTUCA SATIVA
700 1 $aZOPPOLO, R.
773 $tAllelopathy Journal, 2011$gv.28, no. 1, p.77-86.
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