Abstract
Abstract BACKGROUND With the increasing demand for high‐quality foodstuffs and concern for environmental sustainability, late‐season nitrogen (N) foliar fertilization of common wheat is now an important and widespread practice. This study investigated the effects of late‐season foliar versus soil N fertilization on yield and protein content of four varieties of durum wheat, Aureo, Ariosto, Biensur and Liberdur, in a three‐year field trial in northern Italy. RESULTS Variations in low‐molecular‐weight glutenins (LMW‐GS), high‐molecular‐weight glutenins (HMW‐GS) and gliadins were assessed by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS‐PAGE). It was found that N applied to the canopy did not improve protein rate compared with N application to the soil (general mean 138 mg g −1 ), but moderately increased productivity in the high‐yielding varieties Liberdur and Biensur (three‐year means 7.23 vs 7.13 and 7.53 vs 7.09 t ha −1 respectively). Technological quality was mainly related to variety choice, Aureo and Ariosto having higher protein rates and glutenin/gliadin ratios. Also found was a strong ‘variety × N application method’ interaction in the proportions of protein subunits within each class, particularly LMW‐GS and gliadins. A promising result was the higher N uptake efficiency, although as apparent balance, combined with higher HMW/LMW‐GS ratio in var. Biensur. CONCLUSION Late‐season foliar N fertilization allows N fertilizer saving, potentially providing environmental benefits in the rainy climate of the northern Mediterranean area, and also leads to variety‐dependent up‐regulation of essential LMW‐GS and gliadins. Variety choice is a key factor in obtaining high technological quality, although it is currently associated with modest grain yield. This study provides evidence of high quality in the specific high‐yielding variety Biensur, suggesting its potential as a mono‐varietal semolina for pasta production. © 2017 Society of Chemical Industry
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Claims 10
Claim · model-written summary
Foliar nitrogen did not improve protein rate relative to soil application.
- Treatment
- N applied to the canopye0
- Outcome
- protein ratee0
- Direction
- did not improvee0
- Value
- 138 mg g −1e0
- Comparator
- N application to the soile0
Not reportedTaxon
Verbatim
e0“N applied to the canopy did not improve protein rate compared with N application to the soil (general mean 138 mg g −1 )”
Claim · model-written summary
Foliar nitrogen moderately increased productivity in Liberdur.
- Taxon
- durum wheat
Triticum turgidum subsp. durumt0 - Material
- Liberdure0
- Treatment
- foliart0
- Outcome
- productivitye0
- Direction
- increasede0
- Value
- 7.23 vs 7.13e0
- Comparator
- soilt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“durum wheat varieties under late‐season foliar versus soil application of nitrogen fertilizer”
e0“moderately increased productivity in the high‐yielding varieties Liberdur and Biensur (three‐year means 7.23 vs 7.13 and 7.53 vs 7.09 t ha −1 respectively)”
Claim · model-written summary
Foliar nitrogen moderately increased productivity in Biensur.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Material
- Biensure0
- Treatment
- foliart0
- Outcome
- productivitye0
- Direction
- increasede0
- Value
- 7.53 vs 7.09 t ha −1e0
- Comparator
- soilt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“durum wheat varieties under late‐season foliar versus soil application of nitrogen fertilizer”
e0“moderately increased productivity in the high‐yielding varieties Liberdur and Biensur (three‐year means 7.23 vs 7.13 and 7.53 vs 7.09 t ha −1 respectively)”
Claim · model-written summary
Aureo and Ariosto had higher protein rates and glutenin/gliadin ratios.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Material
- Aureo and Ariostoe0
- Outcome
- protein rates and glutenin/gliadin ratiose0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“durum wheat varieties”
e0“Aureo and Ariosto having higher protein rates and glutenin/gliadin ratios”
Claim · model-written summary
Protein subunit proportions showed a strong variety by application-method interaction.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Treatment
- N application methode0
- Outcome
- proportions of protein subunitse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“durum wheat varieties”
e0“strong ‘variety × N application method’ interaction in the proportions of protein subunits within each class, particularly LMW‐GS and gliadins”
Claim · model-written summary
Biensur showed higher nitrogen uptake efficiency.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Material
- Biensure0
- Outcome
- N uptake efficiencye0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“durum wheat varieties”
e0“higher N uptake efficiency, although as apparent balance, combined with higher HMW/LMW‐GS ratio in var. Biensur”
Claim · model-written summary
Biensur showed a higher HMW/LMW‐GS ratio.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Material
- Biensure0
- Outcome
- HMW/LMW‐GS ratioe0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“durum wheat varieties”
e0“higher N uptake efficiency, although as apparent balance, combined with higher HMW/LMW‐GS ratio in var. Biensur”
Claim · model-written summary
Late-season foliar nitrogen allows fertilizer saving.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Outcome
- N fertilizer savinge0
- Setting
- northern Mediterranean areae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“durum wheat varieties”
e0“Late‐season foliar N fertilization allows N fertilizer saving, potentially providing environmental benefits in the rainy climate of the northern Mediterranean area”
Claim · model-written summary
Foliar nitrogen led to variety-dependent up-regulation of LMW-GS and gliadins.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Treatment
- foliart0
- Outcome
- LMW‐GS and gliadinse0
- Direction
- up‐regulatione0
- Comparator
- soilt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“durum wheat varieties under late‐season foliar versus soil application of nitrogen fertilizer”
e0“leads to variety‐dependent up‐regulation of essential LMW‐GS and gliadins”
Claim · model-written summary
High quality in high-yielding Biensur suggests potential for mono-varietal semolina.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Material
- Biensure0
- Outcome
- potential as a mono‐varietal semolina for pasta productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“durum wheat varieties”
e0“high quality in the specific high‐yielding variety Biensur, suggesting its potential as a mono‐varietal semolina for pasta production”
The same questions in other papers
application · yield · Triticum turgidum (rivet wheat)Positive and negative results
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- no effect
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See all 20 papers →application · molecular: metabolites · Triticum turgidum (rivet wheat)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.