Characterization of the arthropod attack to Phaseolus vulgaris

FABIANA OJEDA; PATRICIA SUSANA HOC; AMELA GARCÍA, M. T.

LAP LAMBERT Academic Publishing

Lugar: Saarbrücken; Año: 2017 p. 70

978-3-330-04254-4

The insect and other arthropod community associated to Phaseolus vulgaris L.var. aborigineus (Burkart) Baudet, a native bean from Argentina, potential source forimprovement of cultivated varieties, was compared between different genetic lines.Seeds from two distant latitudes and from wild, weedy and presumptive hybridindividuals were sown in two microsites of Buenos Aires University Campus.Arthropod presence and abundance as well as the amount of damage and possiblephysical defenses were registered during two culture seasons. All the accessionswere attacked by 15 taxa of Insecta and 5 of Arachnida, including larvae and adults.Species richness varied among culture seasons, being minor during the second one.Although the indument density was significantly different between wild specimensfrom different latitudes and between culture sites for plants of a same procedence,this character did not constitute a mechanic obstacle against the recordedherbivores, as the amount of damage was high and similar in both procedences andin all the entities, irrespective of culture site or season; so, neither the presumptivehybrid nor the weedy form exhibited a better performance against arthropod attackrespect to the wild form.