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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Entomologia experimentalis et applicata 47 (1988), S. 195-199 
    ISSN: 1570-7458
    Keywords: Vigna vexillata ; resistance ; pod-sucking bug ; Clavigralla tomentosicollis ; Coreidae ; Hemiptera ; Cowpea ; Vigna unguiculata ; pod hairs ; pod wall
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Deux variétés de Vigna vexillata se sont avérées plus résistantes aux infestations et dégâts causés par la punaise des cosses Clavigralla tomentosicollis (Stål.) (Hemiptera: Coreidae) que les variétés de Vigna unguiculata, tant en champ (condition de libre choix) qu'en serre (sans choix possible). Les trichomes des cosses de V. vexillata sont en partie responsables de cette résistance. Cependant d'autres facteurs de la cosses ou des fèves sont impliqués dan la résistance. Comme la paroi de la cosse de V. vexillata n'offre pas plus de résistance mécanique que celle de V. unguiculata, les études futures se porteront sur les caractéristiques biochimiques des cosses et des fèves de V. vexillata.
    Notes: Abstract Two varieties of Vigna vexillata Benth proved more highly resistant, both under field (free-choice) and screenhouse (no-choice) conditions, to infestation and damage by the pod-sucking bug Clavigralla tomentosicollis (Stål.) (Hemiptera: Coreidae) than cowpea (Vigna unguiculata Walp.) varieties. Trichomes on the pod of V. vexillata partly accounted for the resistance. However, other factors in the pod or seeds are involved in the resistance. Because the pod wall of V. vexillata is not tougher than that of cowpeas, biochemical characteristics of pods and seeds of V. vexillata will be further investigated.
    Type of Medium: Electronic Resource
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