Claim · model-written summary
Grain yields were positively correlated with RLD in each soil layer and with coarse root proportion at the upper layer in the tube experiment.
- Outcome
- grain yieldse3
- Direction
- positively correlatede3
- Value
- r=426**e3
- Qualifier
- the RLD in each soil layer and coarse root proportion at the upper layere3
- Setting
- tube experimente3
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“two maize hybrids ZD958 and FM985 were treated with drip irrigation (DI), flood irrigation (FI), and rainfed (RF) in two–year field experiment”
e3“Grain yields were positively correlated with the RLD in each soil layer and coarse root proportion at the upper layer (r=0.493** in field experiment and r=426** in tube experiment)”
Title
Jia Gao; Yingjun Zhang; Chenchen Xu; et al. Agricultural Water Management 2024. doi:10.1016/j.agwat.2024.108728
Other claims from this paper (12)
- Intervention effect DI and FI both increased root dry weight, root length density and the proportion of coarse root length at different soil layers relative to rainfed conditions.
- Intervention effect DI increased grain yield by 10.0% in FM985 compared with FI.
- Intervention effect DI increased grain yield by 10.8% in ZD958 compared with FI.
- Intervention effect Total root length and fine root length were greater under DI than under FI.
- Intervention effect DI increased nitrogen and water use efficiency and yield compared with FI.
- Intervention effect Irrigation at different soil layers increased root dry weight, RLD and the proportion of coarse root length compared with no irrigation in the tube experiment.
- Intervention effect AI increased root dry weight, RLD and coarse root proportion the most in the tube experiment.
- Association FM985 distributed more roots at the 0–30 cm soil layer than ZD958.
- Association Grain yields were positively correlated with RLD in each soil layer and with coarse root proportion at the upper layer in the field experiment.
- Association Grain yields were negatively correlated with root–shoot ratio in the field experiment at maturity stage.
- Association Grain yields were negatively correlated with root–shoot ratio in the tube experiment at maturity stage.
- Recommendation There is a large potential to improve maize yield by enhancing spatial coordination between root distribution and soil water movement.