Claim · model-written summary
The survey recorded 47 vascular plant species in 19 families.
- Taxon
- Aquatic plantst0
- Outcome
- species of vascular plantse0
- Value
- 47 speciese0
- Qualifier
- 19 familiese0
- Setting
- Tagus Valley, Portugalt0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirection
Verbatim
t0“Aquatic plants in the rice fields of the Tagus Valley, Portugal”
e0“In 1997, in 50 surveys of irrigated rice fields (0 ryza sativa L.), 47 species of vascular plants were recorded in 19 families.”
Title
Aquatic plants in the rice fields of the Tagus Valley, Portugal
Escola Superior; Agraria de Santa; Silvia Regina de Menezes Pedro 1999
Other claims from this paper (10)
- Observation Most recorded vascular plant species belonged to Gramineae and Cyperaceae.
- Observation Seven algae species were found.
- Observation Hydrodictyon reticulatum accounted for 42% of the algae observations.
- Observation Chara vulgaris accounted for 38% of the algae observations.
- Observation Echinochloa crus-galli had a relative frequency of 98%.
- Observation Paspalum paspalodes had a relative frequency of 82%.
- Observation Thirteen recorded weed species were alien.
- Observation The authors identify Heteranthera limosa as a potential danger to rice culture.
- Observation The authors identify Heteranthera reniformis as a potential danger to rice culture.
- Observation Increasing red rice presence is identified as a potential danger to rice culture.