Syzygium rubicundum
Seed products germination was extremely staggered both in pure (Stacy, Harischandran, and you may Gunatilleke, within the press) and you will greenhouse configurations, stretching more than >4 mo. From the 100 d after sowing (when germination is actually ?95% complete), the newest percent out-of vegetables germinated have been average, ranging across the services from 21 in order to forty two% regarding sown seed (imply = 36%; pooled all over maternal trees; Fig. 3a). Excepting brand new surprisingly highest germination rate seen towards nearest-next-door neighbor medication within Tree #3 (83.3%), the partnership between crossing distance and seeds germination is almost identical to that for good fresh fruit in for that it varieties (Fig. 3a). And additionally the analysis activities, indicate seed germination wasn’t somewhat more one of service, neither certainly maternal trees (Table 3A). Leaving out new unmarried outlier don’t replace the Aong hands-pollination services, level indicate seed germination coincided with height good fresh fruit set within a keen outcrossing point of 1–dos kilometres and is actually almost identical to brand new indicate germination regarding open-pollinated vegetables (Fig. 3a).
Shorea cordifolia
Germination of experimental seeds was rapid and fairly even across treatments (mean = 62%; range: 55–72% at 45 d; Fig. 3b). A steady increase in mean seed germination with outcrossing distance is apparent, but not significant (Fstep 1,nine = 1.02, P < 0.34, R 2 = 0.40; Fig. 3b). Mean seed germination was not significantly different among treatments, nor among maternal trees (Table 3B). Interestingly, mean seed germination for all hand-pollination treatments exceeded that of open-pollinated seeds (Fig. 3b). While the reason for this observation is not known, the latter estimates were based on much larger sample sizes and therefore may be more robust.
Seedling survivorship and you can development
Due to attrition from one lifetime phase to another, test versions of some procedures classes was basically reduced to possess estimates of seedling survivorship and you can development, which have hampered analytical assessment. Zero significant outcomes of either crossing medication or maternal forest was basically receive getting possibly measure in either types (Dining table step three). Excluding selfed procedures seedlings away from S. rubicundum (Letter = 2), the fresh mean survivorship rates off seedlings in their first 12 months try higher (>80%) for everybody service out of both species. Both for variety, level mean seedling survivorship coincided on the faraway within this-tree therapy.
For S. rubicundum, imply seedling peak from the step 1 year postgermination enhanced with outcrossing range, peaking in the an enthusiastic intermate distance of 1–2 kilometres, and losing quite towards longest point crosses (Fig. 4a). To have Sh. cordifolia, mean seedling level increased steadily with outcrossing point, peaking on longest-point cross (Fig. 4b). Both for variety, within-therapy version into the seedling top is actually large (Fig. 4). To own S. rubicundum, variation during the seedling level are going sexy par âge rencontre to be informed me, at the least to some extent, from the staggered seed germination.
Collective fitness
For each species, the cumulative fitness of each treatment class was calculated as the standardized product of the four fitness measures (see Fig. 5). For both species, the distribution of cumulative fitness with respect to crossing distance was similar to that for fruit set (Fig. 5). For S. rubicundum, variation in cumulative fitness among treatments was highly significant (Table 3A); mean cumulative fitness of the distant within-forest treatment was 4–25 times the means for other hand-pollination treatments and twice that of open-pollinated flowers. The relationship between outcrossing distance and cumulative fitness was nearly significant (quadratic regression: F2,ten = 3.84, P = 0.056). Mean cumulative fitness (relative) was not significantly different between the distant between-forest treatment (mean = 0.07) and all within-forest outcrossed classes combined (mean = 0.24, F1,twelve = 1.69, P = 0.219), due to the strong near-neighbor effect on cumulative fitness.