Nymphal development and adult fecundity of Rhopalosiphum padi (L.) were monitored on barley yellow dwarf virus (BYDV)-infected and healthy winter wheat lines, including two containing the barley yellow dwarf virus coat
protein (BYDV-CP) gene, susceptible Lambert and virus tolerant Caldwell. Nymphal development was significantly longer on the transgenic genotypes and Caldwell infected with BYDV, compared to healthy plants. Rophalosiphum padi fecundity was significantly lower on virus-infected transgenics compared to healthy plants. In contrast, fecundity was significantly greater on BYDV-infected
Lambert and Caldwell than on healthy plants. Aphid intrinsic rate of increase (IRI) was significantly lower on BYDV-infected transgenic plants compared to healthy ones, while in virus-infected Lambert and Caldwell, IRI was
higher than on healthy plants.
Species 1: Homoptera Aphididae Rophalosiphum padi (Bird cherry-oat aphid)
Keywords: Fecundity, Nymphal development
The ESA 2001 Annual Meeting - 2001: An Entomological Odyssey of ESA