POTATO.GPAPHID.RADCLIFFE.1988

 
METHOD: Visual Examination CONDITIONS: Green House, Lab and Field. METHOD NARR: This paper is a result of a series of 39 experiments performed in many places, under varying conditions and with different insect sources, all of whaper but too numerous to mention here. In all experiments, data were recorded as mean number of GPA per plant. RESULTS NARR: Coefficients of variation (CV) were calculated for each accession across all 39 evaluations. Loence of stability of relative resistance across evaluations. Over all evaluations, relative resistance was consistant with results reported previously. Resistance indices were computed as a ratio of mean GPA per plant/averagehe 15 accessions common to all 39 evaluations. AUTHOR EXPLANATION: If GPA-resistant breeding lines were developed, they could be used widely and this resistance would prove stable.
Trait(s) evaluated
Citation(s)
  • Radcliff, E. B., W. M. Tingey, R. W. Gibson, L. Valencia, & K. V. Raman. 1988. Stability of green peach aphid (Homoptera: Aphididae) resistance in wild potato species. J. Econ. Entomol. 81:361-367.