The Genetical Analysis of Characters with Continuous Variability on a Mendelian Basis. III. Dihybrid Segregation.

HE segregation of continuous F, distributions has been demonstrated on the character cotyledon size in Part I “Monohybrid segregation” in WEBER (1959). The same methods were applied to the character primary leaf size for the parents and the F,, the single measurements length (insertion to tip) = x4 and area = x5 being used. Figure 1 shows the average sizes of hypocotyl, cotyledon and primary leaf of the tomato varieties Professor Rudloff (=R) and Bonner Best (=B) .