Chin J Plant Ecol ›› 2012, Vol. 36 ›› Issue (1): 63-71.DOI: 10.3724/SP.J.1258.2012.00063
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ZHANG Zhen-Chun, TAN Dun-Yan*()
Received:
2011-03-04
Accepted:
2011-11-15
Online:
2012-03-04
Published:
2012-01-05
Contact:
TAN Dun-Yan
ZHANG Zhen-Chun, TAN Dun-Yan. Floral sex allocation and flowering pattern in the andromonocious Soranthus meyeri(Apiaceae)[J]. Chin J Plant Ecol, 2012, 36(1): 63-71.
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URL: https://www.plant-ecology.com/EN/10.3724/SP.J.1258.2012.00063
花类型 Floral morph | 花瓣长 Length of petal (mm) | 雄蕊 Stamen (mm) | 雌蕊 Pistil (mm) | 花粉数量 Number of pollen grains | 花生物量 Biomass per flower (mg) | ||
---|---|---|---|---|---|---|---|
花丝长 Length of filament | 花药长 Length of anther | 子房长 Length of ovary | 花柱长 Length of style | ||||
两性花 Hermaphrodite flower | 3.15 ± 0.05 | 3.09 ± 0.05 | 0.92 ± 0.01 | 1.88 ± 0.43 | 0.72 ± 0.05 | 21 633 ± 634 | 12.10 ± 0.28 |
雄花 Staminate flower | 2.89 ± 0.04 | 2.83 ± 0.04 | 0.85 ± 0.01 | - | - | 18 312 ± 454 | 5.37 ± 0.16 |
F | 16.99** | 14.43** | 27.26** | - | - | 13.06** | 425.51** |
Table 1 Floral traits of staminate and hermaphrodite flowers in Soranthus meyeri (mean ± SE, n = 20)
花类型 Floral morph | 花瓣长 Length of petal (mm) | 雄蕊 Stamen (mm) | 雌蕊 Pistil (mm) | 花粉数量 Number of pollen grains | 花生物量 Biomass per flower (mg) | ||
---|---|---|---|---|---|---|---|
花丝长 Length of filament | 花药长 Length of anther | 子房长 Length of ovary | 花柱长 Length of style | ||||
两性花 Hermaphrodite flower | 3.15 ± 0.05 | 3.09 ± 0.05 | 0.92 ± 0.01 | 1.88 ± 0.43 | 0.72 ± 0.05 | 21 633 ± 634 | 12.10 ± 0.28 |
雄花 Staminate flower | 2.89 ± 0.04 | 2.83 ± 0.04 | 0.85 ± 0.01 | - | - | 18 312 ± 454 | 5.37 ± 0.16 |
F | 16.99** | 14.43** | 27.26** | - | - | 13.06** | 425.51** |
Fig. 1 Relationships between total number of flowers and aboveground vegetative organ biomass of individual plants of Soranthus meyeri in 2007 and 2008. r1, correlation coefficient of hermaphrodite flower; r2, correlation coefficient of staminate flower. ■, hermaphrodite flower; ▲, staminate flower. The solid lines represent the relationship between the number of hermaphrodite flowers and aboveground vegetative organ biomass of individual plant, and the dashed lines represent the relationship between the number of staminate flowers and aboveground vegetative organ biomass of individual plant.
Fig. 2 Relationships between sex ratio (number of hermaphrodite flowers/total number of flowers) and aboveground vegetative organ biomass in individual of Soranthus meyeri in 2007 and 2008.
Fig. 3 Arrangement of flowers and umbels within the inflorescence of Soranthus meyeri. A, Distribution of umbels on an individual plant. B, Distribution of staminate and hermaphrodite flowers in an umbellet. a, primary umbel; b, secondary umbel; ○, outer flower; ⊙, intermediate flower; ●, central flower.
观测指标 Items | 2006 | 2007 | 2008 | F | |
---|---|---|---|---|---|
一级复伞形花序 Primary umbel | 伞形花序数 Number of umbellets | 15.4 ± 0.8 | 14.8 ± 0.8 | 16.2 ± 0.6 | 0.37 |
每伞形花序雄花数 Number of staminate flowers in an umbellet | 0.7 ± 0.3 | 4.0 ± 0.8 | 0.7 ± 0.2 | 15.51** | |
每伞形花序两性花数 Number of hermaphrodite flowers in an umbellet | 15.3 ± 0.5 | 13.3 ± 0.8 | 16.3 ± 0.6 | 5.78** | |
二级复伞形花序 Secondary umbel | 复伞形花序数 Number of umbels | 4.0 ± 0.3 | 3.0 ± 0.4 | 3.7 ± 0.4 | 2.05 |
每复伞形花序伞形花序数 Number of umbellets in an umbel | 4.4 ± 0.3 | 4.2 ± 0.3 | 4.3 ± 0.3 | 0.17 | |
每伞形花序雄花数 Number of staminate flowers in an umbellet | 7.4 ± 0.9 | 8.7 ± 0.9 | 6.7 ± 1.0 | 3.46* | |
每伞形花序两性花数 Number of hermaphrodite flowers in an umbellet | 9.0 ± 1.0 | 6.1 ± 0.9 | 9.3 ± 1.0 | 3.58* |
Table 2 Number of umbellets ( umbels ) and staminate and hermaphrodite flowers of one umbel in Soranthus meyeri (mean ± SE)
观测指标 Items | 2006 | 2007 | 2008 | F | |
---|---|---|---|---|---|
一级复伞形花序 Primary umbel | 伞形花序数 Number of umbellets | 15.4 ± 0.8 | 14.8 ± 0.8 | 16.2 ± 0.6 | 0.37 |
每伞形花序雄花数 Number of staminate flowers in an umbellet | 0.7 ± 0.3 | 4.0 ± 0.8 | 0.7 ± 0.2 | 15.51** | |
每伞形花序两性花数 Number of hermaphrodite flowers in an umbellet | 15.3 ± 0.5 | 13.3 ± 0.8 | 16.3 ± 0.6 | 5.78** | |
二级复伞形花序 Secondary umbel | 复伞形花序数 Number of umbels | 4.0 ± 0.3 | 3.0 ± 0.4 | 3.7 ± 0.4 | 2.05 |
每复伞形花序伞形花序数 Number of umbellets in an umbel | 4.4 ± 0.3 | 4.2 ± 0.3 | 4.3 ± 0.3 | 0.17 | |
每伞形花序雄花数 Number of staminate flowers in an umbellet | 7.4 ± 0.9 | 8.7 ± 0.9 | 6.7 ± 1.0 | 3.46* | |
每伞形花序两性花数 Number of hermaphrodite flowers in an umbellet | 9.0 ± 1.0 | 6.1 ± 0.9 | 9.3 ± 1.0 | 3.58* |
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