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“dry weight decrease”

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Organism: Hordeum vulgare ✕

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

The growth regulator treatments did not significantly decrease dry weight per stem.

Taxon: winter barleyHordeum vulgaree0
Treatment: mepiquat chloride and ethephone6
Outcome: dry weight/steme5
Direction: did not decrease significantlye5

Not reportedComparator

Verbatim

e0
“six cultivars of winter barley grown in Belfast, UK, in 1986/87”
✓ located verbatim in the source · abstract, characters 203–266

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”
✓ located verbatim in the source · abstract, characters 939–1126

e6
“Applications of nitrogen and a plant growth regulator (mepiquat chloride and ethephon) were used to manipulate stem structure”
✓ located verbatim in the source · abstract, characters 8–133

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.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Dry weight per unit length of stem was similar in growth-regulator-treated and untreated plots.

Taxon: winter barleyHordeum vulgaree0
Treatment: mepiquat chloride and ethephone6
Outcome: dry weight/unit length of steme5
Direction: similare5
Comparator: untreated plotse5

Verbatim

e0
“six cultivars of winter barley grown in Belfast, UK, in 1986/87”
✓ located verbatim in the source · abstract, characters 203–266

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”
✓ located verbatim in the source · abstract, characters 939–1126

e6
“Applications of nitrogen and a plant growth regulator (mepiquat chloride and ethephon) were used to manipulate stem structure”
✓ located verbatim in the source · abstract, characters 8–133

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 The growth regulator treatments did not significantly decrease dry weight per stem.
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.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Stem plus leaf sheath weight in no-ear barley decreased to the same extent as controls.

Taxon: barleyHordeum vulgaree0
Treatment: no-eare0
Outcome: weight of stem plus leaf sheathe1
Direction: decreasede0
Comparator: control plantse0

Verbatim

e0
“the weight in the no-ear barley decreased to the same extent as in the control plants”
✓ located verbatim in the source · abstract, characters 693–778

e1
“the weight of stem plus leaf sheath did not decrease until the maturation stage in the no-ear wheat”
✓ located verbatim in the source · abstract, characters 592–691

Title

Effects of Ear Removal on Dry Matter Production and Its Partitioning in Wheat and Barley.

Kano KOIDE; Kuni ISHIHARA Japanese Journal of Crop Science 1992. doi:10.1626/jcs.61.651

Other claims from this paper (10)

Intervention effect Ear removal did not produce a significant difference in total dry weight in wheat and barley through harvest.
Intervention effect Ear removal increased weights of leaf blade, leaf sheath and roots in wheat and barley.
Intervention effect Ear removal increased weights of stem and late tillers in wheat and barley.
Observation Stem plus leaf sheath weight in no-ear wheat did not decrease until maturation.
Intervention effect The increase in late tillers after ear removal was larger in barley than wheat.
Intervention effect After ear removal, leaf blade and sheath weights increased more in upper wheat leaves.
Intervention effect After ear removal, leaf blade and sheath weight increases were the same across barley leaf positions.
Mechanism In both wheat and barley, increased flag leaf weight after ear removal was mainly due to increased sucrose.
Observation After ear removal, the sucrose increase was larger in wheat than barley.
Observation After ear removal, glucose and fructose increases began earlier and were larger in barley than wheat.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The growth regulator treatments reduced plant height.

Taxon: winter barleyHordeum vulgaree0
Treatment: mepiquat chloride and ethephone6
Outcome: plant heighte5
Direction: reducede5

Not reportedComparator

Verbatim

e0
“six cultivars of winter barley grown in Belfast, UK, in 1986/87”
✓ located verbatim in the source · abstract, characters 203–266

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”
✓ located verbatim in the source · abstract, characters 939–1126

e6
“Applications of nitrogen and a plant growth regulator (mepiquat chloride and ethephon) were used to manipulate stem structure”
✓ located verbatim in the source · abstract, characters 8–133

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 did not significantly decrease dry weight per stem.
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.

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