Claim · model-written summary
The growth regulator treatments did not significantly decrease dry weight per stem.
- Taxon
- winter barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- mepiquat chloride and ethephone6
- Outcome
- dry weight/steme5
- Direction
- did not decrease significantlye5
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“six cultivars of winter barley grown in Belfast, UK, in 1986/87”
e5“The growth regulator treatments reduced plant height and although dry weight/stem did not decrease significantly, dry weight/unit length of stem was similar in treated and untreated plots”
e6“Applications of nitrogen and a plant growth regulator (mepiquat chloride and ethephon) were used to manipulate stem structure”
Title
Response of winter barley cultivars to nitrogen and a plant growth regulator in relation to lodging
E. M. White The Journal of Agricultural Science 1991. doi:10.1017/s0021859600077583
Other claims from this paper (11)
- Observation Pipkin had a very high lodging damage susceptibility index (70), while the other cultivars ranged from 1 to 18.
- Association Differences between cultivars in number of internodes, plant height and stem weight did not explain their differences in resistance to damage.
- Observation Panda had dry weight per unit length of 2·35 mg/mm, among the strongest cultivars.
- Observation Jennifer had dry weight per unit length of 2·34 mg/mm, among the strongest cultivars.
- Observation Pipkin had dry weight per unit length of 1·75 mg/mm, the lowest among the cultivars.
- Intervention effect Nitrogen application increased plant height.
- Intervention effect Nitrogen application did not affect dry weight per main stem.
- Intervention effect Nitrogen application decreased dry weight per unit length of stem.
- Intervention effect The growth regulator treatments reduced plant height.
- Intervention effect Dry weight per unit length of stem was similar in growth-regulator-treated and untreated plots.
- Recommendation Dry weight per unit length has potential as an objective indicator of straw strength and could be used in cultivar evaluation in the absence of damage in field trials.