Claim · model-written summary
N0 delayed flower initiation 14 days compared with N1.
- Taxon
- wheat crop
Triticum aestivumt0 - Treatment
- N0e0
- Outcome
- Flower initiatione0
- Direction
- delayede0
- Value
- 14 dayse0
- Comparator
- N1e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flower initiation in N0 plants was delayed 14 days and ear emergence was delayed 8 days compared with N1 plants.”
t0“wheat crop”
Title
NJ Halse; EAN Greenwood; P Lapins; et al. Australian Journal of Agricultural Research 1969. doi:10.1071/ar9690987
Other claims from this paper (15)
- Observation Relative growth rate generally declined over time.
- Intervention effect Early-season relative growth rate ranked N2 above N1 and N0.
- Observation Deficient plants recovered rapidly in August.
- Association Recovery was associated with second tiller emergence, greater net assimilation and nitrogen uptake, and lower nitrogen stress.
- Mechanism There was no evidence that greater soil nitrogen mineralization caused recovery.
- Observation Nitrogen stress under N0 fell from 48% in July to 14% in September.
- Observation Stress under N1 rose from 6 to 23% in July before falling to 5% in September.
- Intervention effect N0 delayed ear emergence 8 days relative to N1.
- Intervention effect N0 grain yield was 30% of N2 grain yield.
- Intervention effect N1 grain yield was 60% of N2 grain yield.
- Mechanism Yield decline was mainly attributable to heads per square metre.
- Intervention effect Nitrogen deficiency reduced grains per head.
- Intervention effect Nitrogen deficiency reduced weight per grain.
- Intervention effect Nitrogen treatments did not affect duration of photosynthetic activity after anthesis.
- Intervention effect Harvest index was highest under N0 and similar under N1 and N2.