Figure 6. Scatter plot of 10 crop–treatment combinations over three replications and 2 yr (1997 and 1998) as a function of the first canonical root derived from agronomic traits (x axis) and chemical nutrients (y axis). The dotted lines mark the origin of each of the canonical roots. The solid vertical line delineates the boundary between the two growing seasons (1997 and 1998). (O, oat; W, wheat; BCOA, bird cherry-oat aphids; BYDV, barley yellow dwarf virus; GB, greenbug; RWA, Russian wheat aphids; LAI, leaf area index; dT, midday differential canopy temperature deviation from control; LA, leaf area; GY, grain yield.)