Claim · model-written summary
Cluster analysis placed 30.6% of hybrids in the cold tolerance category.
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cold tolerance (30.6%)”
t0“maize”
Title
Shi-Qin SONG; Qing-Long YANG; Dan WANG; et al. ACTA AGRONOMICA SINICA 2022. doi:10.3724/sp.j.1006.2022.13016
Other claims from this paper (19)
- Intervention effect Low temperature inhibited seedling vigor and germination rate in 36 maize hybrids.
- Observation Relative seedling vigor and relative germination cold injury rates showed the largest variation under low temperature.
- Association Seven cold tolerance indicators were significantly correlated.
- Method / resource PCA reduced seven cold tolerance indicators to two independent comprehensive indicators.
- Method / resource Relative seedling vigor and relative germination rate made the largest positive contribution and were proposed as key indicators.
- Observation Cluster analysis placed 19.4% of hybrids in the strong cold tolerance category.
- Observation Cluster analysis placed 33.3% of hybrids in the medium cold tolerance category.
- Observation Cluster analysis placed 16.7% of hybrids in the cold sensitive category.
- Observation Seven named hybrids were strongly cold tolerant.
- Association Seed morphology had no significant correlation with cold tolerance.
- Association Starch content correlated positively with relative seedling vigor.
- Association Starch content correlated positively with relative germination rate.
- Association Starch content correlated negatively with relative seedling vigor chilling injury rate.
- Association Starch content correlated negatively with relative germination chilling injury rate.
- Association Starch content correlated positively with relative germination time.
- Association Protein content correlated negatively with relative seedling vigor.
- Association Regression linked high starch content to higher relative seedling vigor, germination rate and germination time.
- Association Regression linked high starch content to lower chilling injury.
- Recommendation The authors recommended maize varieties with 72.0%-74.0% starch content for germination in Northeast China.