Claim · model-written summary
Males began flowering earlier than females, on 25 May versus 28 May.
- Taxon
- Rhamnus davurica
Rhamnus davuricat0 - Outcome
- Male trees bloome0
- Direction
- earliere0
- Value
- 25 Maye0
- Qualifier
- 28 Maye0
- Comparator
- female treese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Male trees bloom earlier than female trees.The first male blooming was observed on 25 May,the first female blooming on 28 May”
t0“Rhamnus davurica”
Title
Reproductive allocation in dioecious shrub,Rhamnus davurica
Ding Shengjian Acta Ecologica Sinica 2011
Other claims from this paper (19)
- Observation Branch reproductive biomass differed significantly by sex.
- Observation Branch flower biomass differed significantly by sex.
- Observation Branch foliage biomass did not differ significantly by sex.
- Observation Flower, foliage and reproduction biomass differed significantly among individuals.
- Observation Mean female flower biomass was 1.84 times male flower biomass.
- Observation Mean female reproduction biomass was 16 times male reproduction biomass.
- Observation Male foliage biomass exceeded female foliage biomass without a significant difference.
- Observation Shrub flower and reproductive biomass and diameter increment differed significantly by sex.
- Observation Shrub foliage biomass did not differ significantly by sex.
- Association DBH size correlated positively with flower and reproductive and foliage biomass and diameter increment.
- Observation Female shrub flower biomass was 1.6 times male biomass.
- Observation Female shrub reproductive biomass was 1.93 times male biomass.
- Observation Female shrub foliage biomass was 1.1 times male biomass.
- Observation Female diameter increment exceeded male diameter increment by 3.04.
- Observation Females began fruiting on 8 June.
- Observation The plot contained 310 female, 53 male and 225 non-reproductive trees in 2010.
- Observation The population sex ratio of 0.17 significantly deviated from 1:1.
- Observation The 0–2, 2–4, 4–6 and 6–8 cm DBH classes had female-biased sex ratios.
- Observation Mean annual ring widths were 0.78 mm for males and 0.83mm for females; authors concluded growth allocation did not follow trade-off theory.