Claim · model-written summary
Total spikelet number increased with cultivar improvement.
- Taxon
- japonica rice
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Oryza sativa Japonica Groupt0 - Outcome
- total number of spikeletse0
- Direction
- increasee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Increase in grain yield was attributed mainly to the increase in total number of spikelets”
t0“Japonica Rice”
Title
Tan Gui 2010
Other claims from this paper (19)
- Observation Grain yield progressively increased across cultivar eras.
- Observation Panicles became larger across cultivar eras.
- Observation Filled-grain percentage increased from the 1950s to the 1980s.
- Observation Filled-grain percentage decreased in 1990s and post-2000 cultivars.
- Observation Thousand-grain weight did not differ significantly among cultivar eras.
- Observation Biomass increased with cultivar improvement, particularly after heading.
- Observation Harvest index increased with cultivar improvement.
- Observation Root dry weight and root-shoot ratio increased significantly with cultivar improvement.
- Observation Root oxidation activity increased significantly with cultivar improvement.
- Observation Leaf photosynthetic rate increased significantly with cultivar improvement.
- Observation Root oxidation activity and leaf photosynthetic rate declined rapidly during grain filling in super rice.
- Observation Total, effective and high-effective leaf areas increased significantly with cultivar improvement.
- Observation Grain-leaf ratio increased significantly with cultivar improvement.
- Observation Panicle length increased with cultivar improvement.
- Observation The number of primary and secondary panicle branches increased with cultivar improvement.
- Observation Plant height declined between the 1950s and 1990s.
- Observation Super rice after 2000 was significantly taller, around 120 cm.
- Observation Angles of the top three leaves decreased significantly with cultivar improvement.
- Observation Low filled-grain percentage limits yield potential in super rice, according to the authors.