Paper · 2009 · Plant Nutrition and Fertilizing Science

Relationship between grain quality and the accumulation of nitrogen and sulfur in different wheat cultivars

Min Zhang

14
claims
14
verbatim quotes
1
citations
2
research areas
—
Not open access

Abstract

The relationships between grain quality and the accumulation of nitrogen and sulfur in 12 wheat cultivars were examined.The wheat cuhivars were classified into three groups: high N/S ratio,medium N/S ratio and low N/S ratio. The results showed that sulfur accumulation correlated positively with nitrogen accumulation(P0.001),but no signifi- cant line correlations between nitrogen harvest index and sulfur harvest index were observed.High N/S ratio cultivars had higher nitrogen accumulation rate but lower sulfur harvest index,or higher nitrogen harvest index but lower sulfur accu- mulation rate.Medium N/S ratio cultivars had higher nitrogen harvest index and higher sulfur harvest index.Low N/S ratio cultivars had lower nitrogen harvest index,higher sulfur accumulation rate and higher sulfur harvest index.The pro- portions of nitrogen and sulfur allocation to grain were the main reason causing for the difference of N/S ratio in grain over different cuhivars.There were significant differences in the content of glutenin,the glutenin/gliadin ratio,dough devel- opment time and stability time between different groups,and all parameters had a quadric curved lines relation with N/S ratio in grain.Suitable N/S ratio in grain was propitious to the accumulation of glutenin and the grain quality.

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Claims 14

Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulfur accumulation correlated positively with nitrogen accumulation.

Outcome
sulfur accumulatione0
Direction
positivelye0
Qualifier
nitrogen accumulatione0

Not reportedTaxonCompound

Verbatim

e0

“sulfur accumulation correlated positively with nitrogen accumulation(P0.001)”

✓ located verbatim in the source · abstract, characters 249–325 · show in text ↑
Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen and sulfur harvest indices had no significant linear correlation.

Outcome
nitrogen harvest indexe0
Qualifier
no signifi- cant line correlationse0
Comparator
sulfur harvest indexe0

Not reportedTaxonDirection

Verbatim

e0

“no signifi- cant line correlations between nitrogen harvest index and sulfur harvest index were observed”

✓ located verbatim in the source · abstract, characters 330–434 · show in text ↑
Observationobservedoriginal resultmixedmeasured

Claim · model-written summary

High N/S ratio cultivars had higher nitrogen accumulation rate and lower sulfur harvest index.

Material
High N/S ratio cultivarse0
Outcome
nitrogen accumulation ratee0
Direction
highere0

Not reportedTaxon

Verbatim

e0

“High N/S ratio cultivars had higher nitrogen accumulation rate but lower sulfur harvest index,or higher nitrogen harvest index but lower sulfur accu- mulation rate.”

✓ located verbatim in the source · abstract, characters 435–599 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

High N/S ratio cultivars had lower sulfur harvest index.

Material
High N/S ratio cultivarse0
Outcome
sulfur harvest indexe0
Direction
lowere0

Not reportedTaxon

Verbatim

e0

“High N/S ratio cultivars had higher nitrogen accumulation rate but lower sulfur harvest index”

✓ located verbatim in the source · abstract, characters 435–528 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

High N/S ratio cultivars alternatively had higher nitrogen harvest index.

Outcome
nitrogen harvest indexe0
Direction
highere0

Not reportedTaxon

Verbatim

e0

“or higher nitrogen harvest index but lower sulfur accu- mulation rate”

✓ located verbatim in the source · abstract, characters 529–598 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

High N/S ratio cultivars alternatively had lower sulfur accumulation rate.

Outcome
sulfur accu- mulation ratee0
Direction
lowere0

Not reportedTaxon

Verbatim

e0

“or higher nitrogen harvest index but lower sulfur accu- mulation rate”

✓ located verbatim in the source · abstract, characters 529–598 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Medium N/S ratio cultivars had higher nitrogen and sulfur harvest indices.

Material
Medium N/S ratio cultivarse0
Outcome
nitrogen harvest index and higher sulfur harvest indexe0
Direction
highere0

Not reportedTaxon

Verbatim

e0

“Medium N/S ratio cultivars had higher nitrogen harvest index and higher sulfur harvest index.”

✓ located verbatim in the source · abstract, characters 599–692 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Low N/S ratio cultivars had lower nitrogen harvest index.

Material
Low N/S ratio cultivarse0
Outcome
nitrogen harvest indexe0
Direction
lowere0

Not reportedTaxon

Verbatim

e0

“Low N/S ratio cultivars had lower nitrogen harvest index,higher sulfur accumulation rate and higher sulfur harvest index.”

✓ located verbatim in the source · abstract, characters 692–813 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Low N/S ratio cultivars had higher sulfur accumulation rate and sulfur harvest index.

Material
Low N/S ratio cultivarse0
Outcome
sulfur accumulation rate and higher sulfur harvest indexe0
Direction
highere0

Not reportedTaxon

Verbatim

e0

“Low N/S ratio cultivars had lower nitrogen harvest index,higher sulfur accumulation rate and higher sulfur harvest index.”

✓ located verbatim in the source · abstract, characters 692–813 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Nitrogen and sulfur allocation to grain was identified as the principal reason for cultivar differences in grain N/S ratio.

Outcome
difference of N/S ratio in graine0
Qualifier
nitrogen and sulfur allocation to graine0

Not reportedTaxon

Verbatim

e0

“The pro- portions of nitrogen and sulfur allocation to grain were the main reason causing for the difference of N/S ratio in grain over different cuhivars.”

✓ located verbatim in the source · abstract, characters 813–968 · show in text ↑
Observationobservedoriginal resultmixedsignificant (as stated)measured

Claim · model-written summary

Glutenin content, glutenin/gliadin ratio, and dough development time differed significantly among groups.

Outcome
content of glutenin,the glutenin/gliadin ratio,dough devel- opment timee0
Comparator
different groupse0

Not reportedTaxonDirection

Verbatim

e0

“There were significant differences in the content of glutenin,the glutenin/gliadin ratio,dough devel- opment time and stability time between different groups”

✓ located verbatim in the source · abstract, characters 968–1125 · show in text ↑
Observationobservedoriginal resultmixedsignificant (as stated)measured

Claim · model-written summary

Dough stability time differed significantly among groups.

Outcome
stability timee0
Comparator
different groupse0

Not reportedTaxonDirection

Verbatim

e0

“There were significant differences in the content of glutenin,the glutenin/gliadin ratio,dough devel- opment time and stability time between different groups”

✓ located verbatim in the source · abstract, characters 968–1125 · show in text ↑
Associationobservedoriginal resultmixedmeasured

Claim · model-written summary

All four grain quality parameters had a quadratic relation with grain N/S ratio.

Outcome
all parameterse0
Comparator
N/S ratio in graine0

Not reportedTaxonDirection

Verbatim

e0

“all parameters had a quadric curved lines relation with N/S ratio in grain”

✓ located verbatim in the source · abstract, characters 1130–1204 · show in text ↑
Associationauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

A suitable grain N/S ratio favored glutenin accumulation and grain quality.

Outcome
accumulation of glutenin and the grain qualitye0
Direction
propitiouse0
Comparator
Suitable N/S ratio in graine0

Not reportedTaxon

Verbatim

e0

“Suitable N/S ratio in grain was propitious to the accumulation of glutenin and the grain quality.”

✓ located verbatim in the source · abstract, characters 1205–1302 · show in text ↑