Abstract
Field experiments with a uniculm mutant of Proctor spring barley showed that abnormal ear development often resulted from late sowing. The ear abnormalities were twin floret, supernumerary parts, abnormal rachilla, opposite spikelets, one-ranked spikelets, branched rachis, collar -like and bare nodes, aborted apex, and tubular leaf. The degree of abnormality was unaffected by photoperiod. In both uniculm Proctor and uniculm Kindred, node number relative to normal genotype was decreased by high-temperature treatment and the proportion of abnormal rachis nodes and the severity of the abnormality were increased. The transfer of plants from high to low temperature and vice versa at different stages of development showed that high temperature had an almost immediate effect, inducing abnormal development, but that transfer to low temperatures allowed the resumption of more normal development. The abnormalities closely resemble those induced by 2, 4.D and it may be that the effect of the mutant gene is in some way to change the metabolism of auxin.
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Claims 12
Claim · model-written summary
In field experiments with a uniculm mutant of Proctor spring barley, abnormal ear development often resulted from late sowing.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Material
- uniculm mutant of Proctor spring barleye0
- Treatment
- late sowinge0
- Outcome
- abnormal ear developmente0
- Setting
- Field experimentse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Field experiments with a uniculm mutant of Proctor spring barley showed that abnormal ear development often resulted from late sowing”
Claim · model-written summary
Ear abnormalities in uniculm barley included twin floret, supernumerary parts and abnormal rachilla.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- twin floret, supernumerary parts, abnormal rachillae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e0“twin floret, supernumerary parts, abnormal rachilla”
Claim · model-written summary
Ear abnormalities in uniculm barley included opposite spikelets, one-ranked spikelets and branched rachis.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- opposite spikelets, one-ranked spikelets, branched rachise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e0“opposite spikelets, one-ranked spikelets, branched rachis”
Claim · model-written summary
Ear abnormalities in uniculm barley included collar-like and bare nodes.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- collar -like and bare nodese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e0“collar -like and bare nodes”
Claim · model-written summary
Ear abnormalities in uniculm barley included aborted apex and tubular leaf.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- aborted apex, and tubular leafe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e0“aborted apex, and tubular leaf”
Claim · model-written summary
The degree of ear abnormality in uniculm barley was unaffected by photoperiod.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- photoperiode0
- Outcome
- degree of abnormalitye0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e0“The degree of abnormality was unaffected by photoperiod”
Claim · model-written summary
In uniculm Proctor and uniculm Kindred barley, node number relative to the normal genotype was decreased by high-temperature treatment.
- Taxon
- BarleyHordeum vulgaret0
- Material
- uniculm Proctor and uniculm Kindrede1
- Treatment
- high-temperature treatmente2
- Outcome
- node numbere2
- Direction
- decreasede2
- Comparator
- normal genotypee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e1“In both uniculm Proctor and uniculm Kindred”
e2“node number relative to normal genotype was decreased by high-temperature treatment”
Claim · model-written summary
In uniculm Proctor and uniculm Kindred barley, high-temperature treatment increased the proportion of abnormal rachis nodes and the severity of the abnormality.
- Taxon
- BarleyHordeum vulgaret0
- Material
- uniculm Proctor and uniculm Kindrede1
- Treatment
- high-temperature treatmente2
- Outcome
- proportion of abnormal rachis nodes and the severity of the abnormalitye3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e1“In both uniculm Proctor and uniculm Kindred”
e2“high-temperature treatment”
e3“the proportion of abnormal rachis nodes and the severity of the abnormality were increased”
Claim · model-written summary
Transfer experiments showed that high temperature had an almost immediate effect, inducing abnormal development.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- high temperaturee0
- Outcome
- abnormal developmente0
- Qualifier
- almost immediate effecte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e0“high temperature had an almost immediate effect, inducing abnormal development”
Claim · model-written summary
Transfer to low temperatures allowed the resumption of more normal development.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- transfer to low temperaturese0
- Outcome
- more normal developmente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e0“transfer to low temperatures allowed the resumption of more normal development”
Claim · model-written summary
The ear abnormalities closely resemble those induced by 2,4-D.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- abnormalities closely resemble those induced by 2, 4.De0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e0“The abnormalities closely resemble those induced by 2, 4.D”
Claim · model-written summary
The authors suggest the effect of the mutant gene may be to change the metabolism of auxin.
- Taxon
- BarleyHordeum vulgaret0
- Gene
- mutant genee0
- Compound
- auxine0
- Outcome
- metabolism of auxine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Uniculm Barley”
e0“it may be that the effect of the mutant gene is in some way to change the metabolism of auxin”
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See all 12 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.