Claim · model-written summary
B. frondosa densities of 81 and 61 corresponded to 50% rice yield loss.
- Taxon
- rice
Oryza sativat0 - Interactor
- B. frondosa
Bidens frondosae0weed - Outcome
- rice yielde0
- Direction
- reductione0
- Value
- 50%e0
- Qualifier
- 81 and 61e0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed densities corresponding to a 50% reduction in the rice yield were 27 and 18 for L. fusca , 81 and 61 for B. frondosa”
t0“rice competition with Leptochloa fusca”
Title
Mirjalol Umurzokov; Aung Bo Bo; Kwang Min Cho; et al. Weed Research 2024. doi:10.1111/wre.12650
Other claims from this paper (12)
- Observation L. fusca significantly reduced early rice tiller number relative to two other weeds.
- Observation L. fusca caused greater reduction in panicles and yield components later.
- Association Panicle number correlated negatively with weed density and positively with rice yield.
- Method / resource Model competitiveness values were 0.0337 and 0.0572 for L. fusca.
- Method / resource Model competitiveness values were 0.0124 and 0.0165 for B. frondosa.
- Method / resource Model competitiveness values were 0.0059 to 0.0061 for A. coccinea.
- Observation L. fusca densities of 27 and 18 corresponded to 50% rice yield loss.
- Observation A. coccinea densities of 169–164 corresponded to 50% rice yield loss.
- Association Low rice density increased weed competition and yield loss.
- Association Economic thresholds correlated positively with rice density.
- Association Economic thresholds correlated negatively with weed competitiveness.
- Recommendation The authors recommend optimal rice density and weed control for high yield.