Claim · model-written summary
The R2 treatment significantly reduced the number of pollen grains, and pollen grain number per spikelet position, in the middle and far rows of the plot (2021 and 2022).
- Taxon
- hybrid rice
Oryza sativat0 - Treatment
- R2 treatmente0
- Outcome
- number of pollen grainse0
- Direction
- reducede0
- Qualifier
- in the middle (M) and far (F) rows of the plote0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“R2 treatment significantly reduced the number of pollen grains and pollen grain number per spikelet position in the middle (M) and far (F) rows of the plot”
Title
Bangchao Huang; Tao Wang; Youfeng Tao; et al. Journal of Integrative Agriculture 2026. doi:10.1016/j.jia.2026.01.044
Other claims from this paper (16)
- Intervention effect Parental row ratios changed pollen spread, which altered the sterile-line seed set rate in hybrid rice seed production.
- Observation Pollination effectiveness outweighed pollen amount in determining seed set in mechanized hybrid rice seed production.
- Observation Florets with pollen on single stigmas contributed over 50% of total seed set.
- Intervention effect The R2 treatment gave a significantly higher pollination rate of exposed stigma florets at each spikelet position in the near and middle rows than the R1 and R3 treatments, resulting in a greater seed-setting rate.
- Intervention effect The number of pollen grains per stigma (1-3) did not differ significantly among the R1, R2 and R3 row-ratio patterns in 2022.
- Observation Over 50% of successfully pollinated florets had pollen loaded on a single stigma.
- Intervention effect In combination C1, the seed-setting rate of R2 increased by 43.07% compared with R1.
- Intervention effect In combination C1, the seed-setting rate of R2 increased by 34.23% compared with R3.
- Intervention effect In combination C1, the yield of R2 increased by 42.35% compared with R1.
- Intervention effect In combination C1, the yield of R2 increased by 18.53% compared with R3.
- Intervention effect In combination C2, the seed-setting rate of R2 increased by 13.75% compared with R1.
- Intervention effect In combination C2, the seed-setting rate of R2 increased by 34.62% compared with R3.
- Intervention effect In combination C2, the final yield of R2 increased by 14.87% compared with R1.
- Intervention effect In combination C2, the final yield of R2 increased by 29.80% compared with R3.
- Mechanism The authors assert that the R2 pattern reduced pollen loss by optimizing the match between the pollination wind field and parental strip width.
- Mechanism The authors assert that the stable pollen supply enhanced stigma pollen capture, thereby significantly increasing floret pollination rates, seed-setting rates and yield.