Table 3 Germination of GA-treated and untreated seeds of Fraxinus americana L. ranging in age from 1-10 years.
Age of seed Calculated amount of (yrs)Percent germinationz
GA absorbedy (ug)GA-treatedUntreated
1————72
30.28794
40.67751
50.32944
6x0.30————
70.23825
100.20807

  • ↵z Based on the average germination of 100 seed for each age class.

  • ↵y Based on quantity of water abosrbed over a 24-hr period and calculated to be at a concentration greater than endogenous ABA levels found in similar aged seed.

  • ↵x No results; seed contaminated with Penicillium.