Syzygium rubicundum
Seed germination was highly staggered in both absolute (Stacy, Harischandran, and you may Gunatilleke, in the drive) and you will greenhouse configurations, stretching more >cuatro mo. During the a hundred d once sowing (when germination is actually ?95% complete), the newest percent from seed products germinated was indeed average, varying round the solutions of 21 to help you forty-two% away from sown seed (indicate = 36%; pooled all over maternal woods; Fig. 3a). With the exception of new strangely large germination rates observed on the nearby-next-door neighbor cures within Forest number 3 (83.3%), the connection ranging from crossing range and you may seed products germination is nearly identical to that having fruit in for it types (Fig. 3a). Also every studies products, imply vegetables germination was not rather other certainly one of solutions, neither certainly one of maternal woods (Dining table 3A). Leaving out the fresh solitary outlier don’t change the Aong hand-pollination providers, height imply seed germination coincided having top fruits lay on an outcrossing length of 1–dos kilometer and is actually nearly same as brand new imply germination out of open-pollinated seed products (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 one,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 progress
On account of attrition in one life phase to another, test brands of a few therapy kinds had been low having quotes out of seedling survivorship and you can growth, which may have impeded analytical testing. Zero extreme ramifications of often crossing medication otherwise maternal forest was indeed discovered to own sometimes measure in both varieties (Desk step 3). Excluding selfed medication seedlings out-of S. rubicundum (Letter = 2), brand new indicate survivorship rate from seedlings during their first year was large (>80%) for all treatments regarding one another varieties. For kinds, peak suggest seedling survivorship coincided towards faraway within-forest medication.
Having S. rubicundum, suggest seedling height within step one year postgermination increased that have outcrossing point, peaking in the an enthusiastic intermate range of 1–2 kilometres, and you may shedding a little towards the longest range crosses (Fig. 4a). To have Sh. cordifolia, indicate seedling level improved steadily having outcrossing point, peaking in the longest-range mix (Fig. 4b). For types, within-medication adaptation within the seedling level was higher (Fig. 4). Getting S. rubicundum, version in the seedling level is going to be said, at least simply, because of the staggered seeds germination.
Cumulative exercise
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: F2,10 = 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, Fstep one,twelve = 1.69, P = 0.219), due to the strong near-neighbor effect on cumulative fitness.