Figure 4. Aboveground dry matter accumulation as a function of time expressed as days after sowing (DAS) for resistant (R) and susceptible (S) isohybrids under V. dahliae natural infections. Differences were statistically significant at 92 DAS (SE = 79 g m^–2) and at the final harvest (SE = 32 g m^–2). Data are means of isohybrid 2A and 4B. Beginning of flowering took place at 70 DAS and physiological maturity at approximately 105 DAS. Data from Trial 2.