Abstract
Effects of (2‐chloroethyl)trimethyl ammonium chloride (CCC) on the uniculm mutant of barley ( Hordeum vulgare L.) were studied at several concentrations applied as a soil drench. Individual plants were grown in 15‐cm pots well spaced on a greenhouse bench. Treated plants were shorter and darker green than untreated. Control plants consisted of a single shoot, but treated plants showed increased tillering with increasing CCC concentration. A high percentage of the additional tillers produced spikes. Microscopic examination of young untreated plants showed tiller primordia were present in most leaf or leaf primordia axils. Growth of these was promoted by CCC. Supernumerary spikes were observed on some treated plants that appeared to result from an interaction of cool temperatures and short days with CCC treatment. A greater grain yield on treated plants resulted directly from the greater number of tillers.
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Claims 8
Claim · model-written summary
CCC-treated barley plants were shorter than untreated plants.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- Treatede0
- Outcome
- plantse0
- Direction
- shortere0
- Comparator
- untreatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Treated plants were shorter and darker green than untreated”
t0“barley”
Claim · model-written summary
CCC-treated barley plants were darker green.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- Treatede0
- Outcome
- plantse0
- Direction
- darker greene0
- Comparator
- untreatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treated plants were shorter and darker green than untreated”
t0“barley”
Claim · model-written summary
Tillering increased with CCC concentration from a single-shoot control.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- CCCe0
- Outcome
- tilleringe0
- Direction
- increasede0
- Comparator
- Control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Control plants consisted of a single shoot, but treated plants showed increased tillering with increasing CCC concentration”
t0“barley”
Claim · model-written summary
Many additional tillers produced spikes.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- additional tillers produced spikese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A high percentage of the additional tillers produced spikes”
t0“barley”
Claim · model-written summary
Tiller primordia were present in most axils of young untreated plants.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- leaf or leaf primordia axilse0
- Outcome
- tiller primordiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tiller primordia were present in most leaf or leaf primordia axils”
t0“barley”
Claim · model-written summary
CCC promoted growth of tiller primordia.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- CCCe0
- Outcome
- Growth of thesee0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth of these was promoted by CCC”
t0“barley”
Claim · model-written summary
Some treated plants formed supernumerary spikes, apparently through CCC interaction with cool and short days.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- CCC treatmente0
- Outcome
- Supernumerary spikese0
- Qualifier
- interaction of cool temperatures and short dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supernumerary spikes were observed on some treated plants that appeared to result from an interaction of cool temperatures and short days with CCC treatment”
t0“barley”
Claim · model-written summary
CCC-treated plants yielded more grain through increased tiller number.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- grain yielde0
- Qualifier
- greater number of tillerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greater grain yield on treated plants resulted directly from the greater number of tillers”
t0“barley”
The same questions in other papers
chlormequat chloride · growth · Hordeum vulgare (barley)Results differ
6 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
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10 papers more in this group
See all 14 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.