Abstract
Tamburic-Ilincic, L., Brinkman, J. M. P., Sparry, E. and Hooker, D. C. 2015. Optimizing inputs for winter durum wheat in Ontario. Can. J. Plant Sci. 95: 361–368. Best management practices need to be determined for a new wheat class in Ontario: winter durum. The objectives of this study were to determine optimal nitrogen rates (75, 100, and 125 kg N ha −1 ), seeding rates (400, 440, and 480 seeds m −2 ), and fungicide applications on the grain yield, grain protein, and leaf disease control of ‘OAC Amber’ winter wheat durum at five field locations in Ontario. Seeding rates between 400 and 480 seeds m −2 did not impact performance. Overall, fungicide applications at flag leaf and flowering increased grain yield by an average of 0.52 Mg ha −1 , increased seed weight and test weight, reduced powdery mildew [Blumeria graminis (DC.) Speer f. sp. tritici emend. É.J. Marchal] and septoria leaf blotch [Mycosphaerella graminicola (Fuckel) J. Schröt.] in the canopy, but decreased grain protein from 128 to 126 g kg −1 . Grain yields did not increase with N rates higher than 100 kg N ha −1 , and the response to N rate did not depend on the application of fungicides. Grain protein concentrations increased with N rates up to 125 kg N ha −1 , which was the highest N rate investigated in this study. An economic analysis is needed to determine the impact of agronomic management strategies specific to winter durum wheat in Ontario.
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Claims 9
Claim · model-written summary
Fungicide applications at flag leaf and flowering increased grain yield by an average of 0.52 Mg ha−1 in winter durum wheat
- Taxon
- winter durum wheat
Triticum turgidum subsp. durumt0 - Treatment
- fungicide applications at flag leaf and floweringe0
- Outcome
- grain yielde3
- Direction
- increasede3
- Value
- 0.52 Mg ha −1e3
- Setting
- five field locations in Ontarioe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter durum wheat”
e0“fungicide applications at flag leaf and flowering”
e3“increased grain yield by an average of 0.52 Mg ha −1”
e1“at five field locations in Ontario”
Claim · model-written summary
Fungicide applications at flag leaf and flowering increased seed weight and test weight
- Taxon
- winter durum wheatTriticum turgidum subsp. durumt0
- Treatment
- fungicide applications at flag leaf and floweringe0
- Outcome
- seed weight and test weighte2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter durum wheat”
e0“fungicide applications at flag leaf and flowering”
e2“increased seed weight and test weight”
Claim · model-written summary
Fungicide applications at flag leaf and flowering reduced powdery mildew in the canopy
- Taxon
- winter durum wheatTriticum turgidum subsp. durumt0
- Treatment
- fungicide applications at flag leaf and floweringe0
- Interactor
- Blumeria graminis
Blumeria graminise4pathogen - Outcome
- powdery mildewe4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter durum wheat”
e0“fungicide applications at flag leaf and flowering”
e4“reduced powdery mildew [Blumeria graminis (DC.) Speer f. sp. tritici emend. É.J. Marchal]”
Claim · model-written summary
Fungicide applications at flag leaf and flowering reduced septoria leaf blotch in the canopy
- Taxon
- winter durum wheatTriticum turgidum subsp. durumt0
- Treatment
- fungicide applications at flag leaf and floweringe0
- Interactor
- Mycosphaerella graminicola
Zymoseptoria triticie5pathogen - Outcome
- septoria leaf blotche5
- Direction
- reducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter durum wheat”
e0“fungicide applications at flag leaf and flowering”
e5“reduced powdery mildew [Blumeria graminis (DC.) Speer f. sp. tritici emend. É.J. Marchal] and septoria leaf blotch [Mycosphaerella graminicola (Fuckel) J. Schröt.] in the canopy”
Claim · model-written summary
Fungicide applications at flag leaf and flowering decreased grain protein from 128 to 126 g kg−1
- Taxon
- winter durum wheatTriticum turgidum subsp. durumt0
- Treatment
- fungicide applications at flag leaf and floweringe0
- Outcome
- grain proteine6
- Direction
- decreasede6
- Value
- 128 to 126 g kg −1e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter durum wheat”
e0“fungicide applications at flag leaf and flowering”
e6“decreased grain protein from 128 to 126 g kg −1”
Claim · model-written summary
Grain yields did not increase with N rates higher than 100 kg N ha−1
- Taxon
- winter durum wheatTriticum turgidum subsp. durumt0
- Treatment
- N rates higher than 100 kg N ha −1e7
- Outcome
- Grain yieldse7
- Direction
- did not increasee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter durum wheat”
e7“Grain yields did not increase with N rates higher than 100 kg N ha −1”
Claim · model-written summary
The response to N rate did not depend on fungicide application
- Taxon
- winter durum wheatTriticum turgidum subsp. durumt0
- Treatment
- application of fungicidese4
- Outcome
- response to N ratee4
- Direction
- did not depende4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter durum wheat”
e4“the response to N rate did not depend on the application of fungicides”
Claim · model-written summary
Grain protein concentration increased with N rates up to 125 kg N ha−1, the highest rate investigated
- Taxon
- winter durum wheatTriticum turgidum subsp. durumt0
- Treatment
- N rates up to 125 kg N ha −1e5
- Outcome
- Grain protein concentrationse5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter durum wheat”
e5“Grain protein concentrations increased with N rates up to 125 kg N ha −1”
Claim · model-written summary
Seeding rates between 400 and 480 seeds m−2 did not affect performance
- Taxon
- winter durum wheatTriticum turgidum subsp. durumt0
- Treatment
- Seeding rates between 400 and 480 seeds m −2e6
- Outcome
- performancee6
- Direction
- did not impacte6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter durum wheat”
e6“Seeding rates between 400 and 480 seeds m −2 did not impact performance”
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nitrogen · quality: protein · Triticum turgidum (rivet wheat)Positive and negative results
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See all 24 papers →nitrogen · yield · Triticum turgidum (rivet wheat)Positive and negative results
9 papers in the same direction as this paper · 46 in the opposite direction
- positive
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See all 56 papers →fungicide · yield · Triticum turgidum (rivet wheat)Results agree
3 papers in the same direction as this paper
- positive
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- 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.