Fig. 3. Biplot based on diallel data of 10 corn inbreds with varying resistance to pink stem borer; (A) average tester ordination view, (B) polygon view. Codes of the genotypes are: A = A509; B = A637; C = A661; D = CM105; E = EP28; F = EP31; G = EP42; H = F7; I = PB60; and J = Z77016. Genotypes are labeled with upper-case letters when viewed as entries and with lower-case letters when viewed as testers. Exact positions of the entries and testers are at the beginning of the labels. The circle indicates the average tester.
