Figure 4

Effects of corolla treatment on seed number per fruit (a), seed abortion rate (b) and mass per seed (c) of Fritillaria delavayi (n = 20). Different letters denote significant differences at P < 0.05. Control: corolla was left intact; Cut-control: all tepals on the corollas were trimmed c. 1 mm in from their edge after flowering; Corolla removed: corollas were removed after flowering.