Claim · model-written summary
N internal efficiency accounted for 52% of the variation in heterosis for NUE.
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Physiological Basis of Heterosis for Nitrogen Use Efficiency of Maize”
e1“N internal efficiency (NIE) accounted for 52% of the variation in heterosis for NUE”
Title
Physiological Basis of Heterosis for Nitrogen Use Efficiency of Maize
Zhigang Wang; Bao-Luo Ma; Xiaofang Yu; et al. Scientific Reports 2019. doi:10.1038/s41598-019-54864-x
Other claims from this paper (7)
- Observation Both maize hybrids displayed significant heterosis for NUE of up to 466% relative to their parental lines.
- Observation Heterosis for nitrogen recovery efficiency was generally negligible.
- Mechanism Heterosis for NIE and NUE was ascribed to an earlier establishment of pre-anthesis N accumulation source.
- Mechanism Heterosis for NUE involved a larger amount of N remobilized from vegetative tissues, especially leaves, during grain filling.
- Observation Post-anthesis specific weights of leaf and stalk showed a rapid reduction in heterotic maize hybrids.
- Observation Functional stay-green of ear leaves was maintained in heterotic maize hybrids.
- Mechanism Heterosis for NUE involved higher productive efficiency per unit grain N, with reduced grain N concentration and enhanced sink strength.