Morphological characters as indicators of rubber content in Guayule (Parthenium argentatum: Compositae)

Five distinct morphological groups were identified in a cultivated guayule stand at the Texas Agricultural Experiment Station Guayule Research Site near Fort Stockton, Texas. These groups were delineated according to growth habit, and leaf and inflorescence morphology. Mean rubber content was higher...

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Bibliographic Details
Published in:SIDA, contributions to botany contributions to botany, 1991-08, Vol.14 (3), p.331-338
Main Authors: Foster, M.A. (Texas Agricultural Experiment Station, Fort Stockton, TX), Gabel, S.E, Ward, T.S, Kleine, L.G
Format: Article
Language:English
Subjects:
ANATOMIA DE LA PLANTA
ANATOMIE VEGETALE
Branches
CRITERE DE SELECTION
CRITERIOS DE SELECCION
FEUILLE
GROUPS
Growth habit
HABITOS DE CRECIMIENTO
HOJAS
INFLORESCENCE
INFLORESCENCES
INFLORESCENCIAS
LEAVES
morphological groups
PARTHENIUM ARGENTATUM
Peduncle
PLANT ANATOMY
PLANT HABIT
PLANT MORPHOLOGY
PLANTAS LACTIFERAS
PLANTE A CAOUTCHOUC
Plants
PORT DE LA PLANTE
Rubber
RUBBER CROPS
SELECTION CRITERIA
Shrubs
Stems
TAXONOMIA
TAXONOMIE
TAXONOMY
TEXAS
Vegetation canopies
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Summary:Five distinct morphological groups were identified in a cultivated guayule stand at the Texas Agricultural Experiment Station Guayule Research Site near Fort Stockton, Texas. These groups were delineated according to growth habit, and leaf and inflorescence morphology. Mean rubber content was higher in Groups II, III, and V, which possessed more typical Parthenium argentatum morphological characters than in Groups I and IV. The latter groups are apparently products of the natural hybridization between guayule and mariola. Selection for superior rubber-yielding shrubs should be concentrated in Groups II, III, and V. Cinco diferentes grupos morfólogicos fueron identificados en un puesto de guayule cultivado en la Estacion del Estudioń de Guayule de la Estacioń Experimental de Agricultura de Texas. Estos grupos fueron delineados de acuerdo con lo alto y el diámetro del palio, características de la hoja, y la morfología del pedunclo. El alto contenido de hule ocurrió en los Grupos II, III, y V los cuales poseen el típico Parthenium argentatum de caractéres morfologicos. Los Grupos I y IV, productos de la hybridación natural entre el guayule y la mariola, producieron menos hule. La selección de arbustos que produscan hule superior deberá concentrarse en Grupos II, III, y V.
ISSN:0036-1488
2334-3273