Table 6.

Selfed seeds per day per SC plant (y), outcross seeds per day produced per SI (x_x) and SC (x_s) plant and sired by the average SI (p_x) and SC (p_s) plant, seed discounting per selfed seed (SD = (x_x - x_s)/y), pollen discounting per selfed seed (PD = (p_x − p_s)/y), and threshold inbreeding depression (δ) favoring the spread of an SC mutant for conditions prevailing during rainy and dry seasons. Calculated from values presented in Table 5, the mean of 68 seeds per fruit, and the measured selfing rate of 0.076. Male and female outcrossing rates are equal when weighted by the twelve SI and six SC ramets per garden. Dry season values were calculated using genetic analysis of seeds harvested during the rainy season.

Season	y	xx	xs	SD	px	ps	PD	δ
Rainy	2.0	26.4	24.4	1.0	24.3	28.5	-2.1	1.6
Dry	0.6	8.2	7.5	1.0	7.5	8.8	-2.1	1.6
Dry*	1.2	8.2	6.9	1.0	7.7	7.7	0	0.5

^*Dry values were calculated according to a scenario with a doubled selfing rate and no negative pollen discounting.