POTATO.CPB.FRANCA.1994A

 
METHOD: Light Levels CONDITIONS: Green House - 16h light METHOD NARR: Plant measurements: leaf and leaflet area, trichome-specific phenolic oxidation activity (MEBA), trichome density and gland volume were measured for two lightpal development were monitored on the plants used in the light level study. Finally, reproductive performance was also measured. RESULTS NARR: Light level did not affect leaf or leaflet area. Browning activity of ber foliding produced a 36% decrease in gland volume of type A on 473331 while 473334 was unaffected. Shading produced a 35% reduction in densities of type B on 473331 and 44% reduction in volume of type B exudate. Light level did notl or adult weight, larval survival or development time. Larval survival on tbr was twice that on ber473331.Females on ber were lighter than initial weights. Preadult development time on ber was delayed 3-4 days. Light level did not reproductive performance. AUTHOR EXPLANATION: Ber resistance was stable despite shading, which dramaically altered plant growth habit and significantly reduced trichome density, gland volume, and trichome phenolic oxi
Trait(s) evaluated
Citation(s)
  • Franca, F. H. & W. M. Tingey. 1994. Influence of light level on performance of the Colorado potato beetle on Solanum tuberosum L. and on resistance expression in S. berthaultii Hawkes. J. Amer. Soc. Hort. Sci. 119:915-919.