Syzygium rubicundum

Seeds germination was highly staggered in pure (Stacy, sesso incontri gay Harischandran, and you can Gunatilleke, during the force) and you will greenhouse setup, stretching more than >4 mo. During the 100 d just after planting (when germination are ?95% complete), new percent of seed products germinated was basically modest, starting across treatments regarding 21 so you can 44% of sown vegetables (suggest = 36%; pooled round the maternal woods; Fig. 3a). With the exception of new unusually higher germination rates seen towards the nearest-neighbors procedures at Tree # 3 (83.3%), the relationship anywhere between crossing point and you will seeds germination are almost identical compared to that getting fruit set for which kinds (Fig. 3a). And the studies circumstances, mean seeds germination was not somewhat additional certainly providers, nor among maternal woods (Desk 3A). Excluding the brand new single outlier failed to change the Aong hands-pollination treatments, level indicate vegetables germination coincided with top fruits place on an enthusiastic outcrossing point of just one–dos kilometres and are almost just like brand new indicate 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 (F_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 growth

On account of attrition from just one existence stage to the next, try products of a few therapy groups was in fact low to possess estimates out of seedling survivorship and you may development, that have hampered mathematical assessment. Zero tall outcomes of possibly crossing procedures otherwise maternal tree was basically located for either level in a choice of types (Dining table step 3). Excluding selfed medication seedlings off S. rubicundum (N = 2), the new imply survivorship rates out of seedlings in their first 12 months are highest (>80%) for everybody providers away from each other varieties. For types, height mean seedling survivorship coincided into the distant within-tree therapy.

For S. rubicundum, mean seedling top from the 1 year postgermination improved which have outcrossing distance, peaking on a keen intermate distance of just one–dos km, and you will dropping some towards the longest distance crosses (Fig. 4a). For Sh. cordifolia, suggest seedling level enhanced gradually that have outcrossing range, peaking within longest-distance mix (Fig. 4b). For both species, within-treatment variation inside seedling peak is actually higher (Fig. 4). To have S. rubicundum, variation when you look at the seedling height shall be explained, about simply, of the staggered seed 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: F_2,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, F_{step one,a dozen} = 1.69, P = 0.219), due to the strong near-neighbor effect on cumulative fitness.