Claim · model-written summary
Short days produced more spikelets per spike than long days.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- short days (8 h)e0
- Outcome
- spikelet number per spikee0
- Direction
- Greatere0
- Comparator
- long days (16 h)e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greater spikelet number per spike was obtained in the short days (8 h) than in the long days (16 h).”
t0“Wheat”
Title
D. M. Oosterhuis; P. M. Cartwright Crop Science 1983. doi:10.2135/cropsci1983.0011183x002300040026x
Other claims from this paper (7)
- Intervention effect Water stress at critical times killed florets and sometimes terminal spikelets.
- Intervention effect Late vegetative water stress reduced fertile florets per spike.
- Intervention effect Late vegetative water stress reduced formation of spikelet primordia.
- Intervention effect Water stress during internode elongation killed terminal and basal florets and spikelets.
- Observation The spike initial had minimum stress sensitivity after terminal spikelet initiation.
- Observation Semidwarf wheat stress effects appeared similar to standard height spring wheats.
- Mechanism The greater spikelet number in short days was mainly attributed to photoperiod and possibly milder relative water stress.