Claim · model-written summary
The decrease in grain number may be due to lower total dry matter production during ear development rather than unfavourable partitioning.
- Taxon
- barley
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Hordeum vulgaret0 - Outcome
- decrease in grain numbere1
- Qualifier
- a lower production of total dry matter during ear developmente1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
t0“barley”
e1“It is suggested that this decrease in grain number may be due to a lower production of total dry matter during ear development rather than an unfavourable partitioning”
Title
Plant population and shading studies in barley
R. W. Willey; R. Holliday The Journal of Agricultural Science 1971. doi:10.1017/s0021859600064510
Other claims from this paper (9)
- Intervention effect Shading during the ear development period caused considerable reductions in grain yield in barley.
- Intervention effect Shading during the ear development period reduced the number of grains per ear in barley.
- Intervention effect Shading during the grain-filling period caused no reduction in barley grain yield.
- Association At above-optimum populations, the number of grains per ear has the greatest influence on the decrease in barley grain yield.
- Association At high populations, the decrease in barley grain yield was accompanied by a comparable decrease in grains per unit area.
- Association Grains per unit area show a close positive relationship with grain yield per unit area under both shading and population treatments.
- Mechanism Lower total dry matter production is attributed to higher populations reaching peak crop growth rate and then declining before the end of ear development.
- Mechanism The crop growth rate pattern, through its effect on grain number per unit area, is the basic reason grain yield per unit area decreases at above-optimum populations.
- Mechanism Grain yield is suggested to be largely determined by the storage capacity of the ears, with a probable surplus of carbohydrate for grain filling.