Figure 3.
Primary characterization of the tomato genotypes. A, Visual phenotype of the tomato genotypes. Aco-1 is stunted at very early growth stages (up to 3 weeks after transfer to the greenhouse) and has visibly darker leaves; however, neither of these observations are apparent at later stages of growth. B, Photosynthetic pigment content of 6-week-old plants. Source leaves were harvested 6 h into the photoperiod. Values are mean ± se of measurements from six plants per genotype. Diurnal changes in leaf Suc (C), starch (D), and total amino acid (E) content in leaves of 6-week-old plants. At each time point, samples were taken from mature source leaves, and the data represent the mean ± se of measurements from four plants per genotype. An asterisk indicates those that were determined by the Student's t test to be significantly different between genotypes. Gray bars, Dark period; white bars, light period.