Greenhouse competition experiment
Two E. annuus plants (early germinated, EG, and delayed
germinated, DG) that were germinated at intervals of 2 weeks were
transplanted into pots (9 × 9 × 9 cm) 6 cm apart. The rosette diameter,
number of branches, total branch length, and number of flowers were
measured every week for 6 weeks. Six weeks after transplantation, the
aboveground parts of both plants were sampled for fresh weight
measurements. The sampled plants were dried in a 60 ℃ dryer for 7 days
to measure the dry weight.