Table 1.

Indices and cut-off points used for breeding system classification of South African data.

breeding system variableindexformula (using fruit set from pollination treatments)categories
self-incompatibilityindex of self-incompatibility (ISI)1−(hand-self/hand-cross) [12]self-compatible
ISI < 0.8
self-incompatible
ISI ≥ 0.8
pollinator dependenceautofertility index (AFI)autonomous self/hand-cross [19]autofertile
AFI ≥ 0.2
pollinator-dependent
AFI < 0.2
combined variableboth of the aboveboth of the aboveautofertile (AF)pollinator-dependent self-compatible (PD-SC)self-incompatible (SI)