Claim · model-written summary
Shading during the ear development period reduced the number of grains per ear in barley.
- Taxon
- barley
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Hordeum vulgaret0 - Organ / stage
- ear development periode1
- Treatment
- Shading during the ear development periode1
- Outcome
- number of grains per eare1
- Direction
- reducinge1
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“barley”
e1“Shading during the ear development period caused considerable reductions in grain yield, largely by reducing the number of grains per ear”
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 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 The decrease in grain number may be due to lower total dry matter production during ear development rather than unfavourable partitioning.
- 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.