Claim · model-written summary
Differentiated spikelets per panicle ranged from 133.1–229.9 in indica cultivars.
Oryza sativaNot reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NDS ranged from 83.9–149.6 and 133.1–229.9 in the japonica and indica cultivars, respectively.”
t0“rice”
Title
Tahmid Hossain Ansari; Yoshinori Yamamoto; Tetsushi Yoshida; et al. Soil Science & Plant Nutrition 2003. doi:10.1080/00380768.2003.10410029
Other claims from this paper (16)
- Observation Indica cultivars had significantly more differentiated spikelets per panicle than japonica cultivars.
- Observation Indica cultivars had significantly more degenerated and surviving spikelets per panicle than japonica cultivars.
- Observation Differentiated spikelets per panicle ranged from 83.9–149.6 in japonica cultivars.
- Observation Degenerated spikelet percentage ranged from 15.3 to 26.8% in japonica cultivars, averaging 21.6%.
- Observation Degenerated spikelet percentage ranged from 7.2–38.1% in indica cultivars, averaging 27.0%.
- Association Higher differentiated spikelet numbers correlated with more surviving and degenerated spikelets.
- Association More degenerated spikelets correlated with a significantly higher degenerated spikelet percentage.
- Association Surviving spikelet number was not closely related to degenerated spikelet percentage.
- Association Dry matter per productive stem at young panicle stage and heading, and its increase between stages, correlated with differentiated spikelet number.
- Association Absorbed nitrogen per stem was similarly correlated with differentiated spikelet number except at young panicle stage.
- Observation Indica and japonica cultivars had similar dry matter and nitrogen amounts per stem at young panicle stage or heading.
- Association At the same dry matter amount, indica cultivars produced more differentiated spikelets than japonica cultivars.
- Observation Indica cultivars had greater differentiated spikelet production efficiency per dry matter or nitrogen than japonica cultivars.
- Association Spikelet production efficiency was negatively correlated with dry matter or nitrogen per stem and their increase from young panicle stage to heading.
- Association The authors inferred that increased dry matter or nitrogen per stem increased differentiated spikelets while decreasing production efficiency.
- Mechanism The authors attributed the shift toward panicle weight types to more differentiated and surviving spikelets with lower production efficiency per dry matter and nitrogen.