Table 1.

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

breeding system variable	index	formula (using fruit set from pollination treatments)	categories
self-incompatibility	index of self-incompatibility (ISI)	1−(hand-self/hand-cross) [12]	self-compatible ISI < 0.8		self-incompatible ISI ≥ 0.8
pollinator dependence	autofertility index (AFI)	autonomous self/hand-cross [19]	autofertile AFI ≥ 0.2	pollinator-dependent AFI < 0.2
combined variable	both of the above	both of the above	autofertile (AF)	pollinator-dependent self-compatible (PD-SC)	self-incompatible (SI)