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Revista Científica UDO Agrícola
Universidad de Oriente Press
ISSN: 1317-9152
Vol. 7, No. 1, 2007, pp. 91-121
Bioline Code: cg07013
Full paper language: Spanish
Document type: Research Article
Document available free of charge

Revista Científica UDO Agrícola, Vol. 7, No. 1, 2007, pp. 91-121

 en Keys to Identify Weeds Associated with Different Plant Crops in the Monagas State, Venezuela. II. Dicotyledons
Lárez Rivas, América

Abstract

Three hundred and twelve angiosperm's species, registered as weed in some crops of the Monagas state, were taxonomically identified through the review of several scientific publications as well as by checking at the UOJ Herbarium's specimens and doing some field work. The characters of diagnostic value were used in the development of a botanical key for the identification of dicotyledons, represented by 50 families and 245 species. The best represented families were Asteraceae (45), Fabaceae s.l. (22), Malvaceae s.l. (18), Rubiaceae (15), Euphorbiaceae (14), Acanthaceae (12) y Convolvulaceae (11). In order to contribute to the fight against the weeds, vernacular names in the study area and notes about the habit, habitat, crops and sociability were also included.

Keywords
Weeds, dicocotyledons, keys, Monagas state, Venezuela.

 
 es Claves Para Identificar Malezas Asociadas con Diversos Cultivos en el Estado Monagas, Venezuela II. Dicotiledóneas
Lárez Rivas, América

Resumen

Como resultado del examen de varios trabajos de investigación, colectas realizadas y revisión de material del herbario UOJ, se determinaron taxonómicamente 312 especies de angiospermas, que han sido registradas como malezas en diversos cultivos en el estado Monagas. Se seleccionaron los caracteres de valor diagnóstico y se preparó la clave para el reconocimiento de las dicotiledóneas, representadas por 50 familias y 245 especies. Las familias con mayor número de especies fueron Asteraceae (45), Fabaceae s.l. (22), Malvaceae s.l. (18), Rubiaceae (15), Euphorbiaceae (14), Acanthaceae (12) y Convolvulaceae (11). Se registran los nombres vernáculos en el área estudiada y se incluyen comentarios sobre el hábito, hábitat, cultivos donde fueron coleccionadas, distribución y sociabilidad, información de utilidad para su combate y manejo.

Palabras-clave
Malezas dicocotiledóneas, claves, Estado Monagas, Venezuela.

 
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