Abstract
Core Ideas Applied N increased seed and oil yield in yellow mustard in a high rainfall environment. Seeds m −2 was the most influential factor in determining seed yield in yellow mustard. Applied N increased height, biomass, tissue N content, leaf area index, and crop growth rate. The response of applied N in yellow mustard ( Sinapis alba L.) seed production is unknown in the high rainfall environments of the Pacific Northwest. The objective of this study was to determine the effect of applied N on growth, seed yield, and oil production in yellow mustard in this unique environment. Trials were conducted over 3 yr near Corvallis, OR, on cultivar IdaGold yellow mustard with five N rates: 0, 56, 112, 168, and 224 kg N ha −1 . Growth and dry matter partitioning were measured at stem elongation (Biologische Bundesanstalt, Bundessortenamt und CHemische In [BBCH] 30), inflorescence emergence (BBCH 50), and harvest (BBCH 87). Applied N increased height, biomass, leaf area index (LAI), crop growth rate (CGR) and tissue N content. Although rainfall differed among years, N had similar effects on seed yield and yield components. Seed yield increases ranged from 15 to 85% with applied N, primarily as a result of N‐induced increases in seed weight and seed number. Yields ranged from 1010 kg ha −1 with 0 kg N ha −1 to 2579 kg ha −1 with 224 kg N ha −1 . Primary racemes plant −1 was positively associated with increased N. Siliques plant −1 increased with N rate and resulted from increased siliques production on mainstem and primary racemes. Seed oil content was inconsistently affected by N rate; however, highest oil yield was observed with 224 kg N ha −1 . This study will form the foundation for N recommendations for yellow mustard seed production in the Pacific Northwest.
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Claims 12
Claim · model-written summary
Applied N increased height, biomass, leaf area index, and crop growth rate.
- Taxon
- yellow mustard
Sinapis albat0 - Treatment
- Applied Ne0
- Outcome
- height, biomass, leaf area index (LAI), crop growth rate (CGR)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applied N increased height, biomass, leaf area index (LAI), crop growth rate (CGR) and tissue N content.”
t0“yellow mustard”
Claim · model-written summary
Applied N increased tissue N content.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- Applied Ne0
- Outcome
- tissue N contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applied N increased height, biomass, leaf area index (LAI), crop growth rate (CGR) and tissue N content.”
t0“yellow mustard”
Claim · model-written summary
N had similar effects on seed yield and its components despite rainfall differences among years.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- Ne0
- Outcome
- seed yield and yield componentse0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although rainfall differed among years, N had similar effects on seed yield and yield components.”
t0“yellow mustard”
Claim · model-written summary
Applied N increased seed yield by 15 to 85%.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- applied Ne0
- Outcome
- Seed yielde0
- Direction
- increasese0
- Value
- 15 to 85%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield increases ranged from 15 to 85% with applied N”
t0“yellow mustard”
Claim · model-written summary
N increased seed weight.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- Ne0
- Outcome
- seed weighte0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N‐induced increases in seed weight and seed number”
t0“yellow mustard”
Claim · model-written summary
N increased seed number.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- Ne0
- Outcome
- seed numbere0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N‐induced increases in seed weight and seed number”
t0“yellow mustard”
Claim · model-written summary
Yield ranged from 1010 kg ha −1 without N to 2579 kg ha −1 at 224 kg N ha −1.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- 224 kg N ha −1e0
- Outcome
- Yieldse0
- Direction
- rangede0
- Value
- 2579 kg ha −1e0
- Qualifier
- 1010 kg ha −1e0
- Comparator
- 0 kg N ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields ranged from 1010 kg ha −1 with 0 kg N ha −1 to 2579 kg ha −1 with 224 kg N ha −1”
t0“yellow mustard”
Claim · model-written summary
Primary racemes per plant were positively associated with increased N.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- increased Ne0
- Outcome
- Primary racemes plant −1e0
- Direction
- positivelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Primary racemes plant −1 was positively associated with increased N.”
t0“yellow mustard”
Claim · model-written summary
Siliques per plant increased with N rate.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- N ratee0
- Outcome
- Siliques plant −1e0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Siliques plant −1 increased with N rate”
t0“yellow mustard”
Claim · model-written summary
N increased silique production on the mainstem and primary racemes.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- Nt0
- Outcome
- siliques production on mainstem and primary racemese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased siliques production on mainstem and primary racemes”
t0“Nitrogen Affects Seed Production Characteristics in Yellow Mustard”
Claim · model-written summary
Seed oil content responded inconsistently to N rate.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- N ratee0
- Outcome
- Seed oil contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed oil content was inconsistently affected by N rate”
t0“yellow mustard”
Claim · model-written summary
The highest oil yield occurred at 224 kg N ha −1.
- Taxon
- yellow mustardSinapis albat0
- Treatment
- 224 kg N ha −1e0
- Outcome
- oil yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest oil yield was observed with 224 kg N ha −1”
t0“yellow mustard”
The same questions in other papers
nitrogen · yield · Sinapis alba (white mustard)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
3 papers more in this group
See all 7 papers →nitrogen · growth · Sinapis alba (white mustard)Results agree
1 paper in the same direction as this paper
- positive
nitrogen · quality: oil · Sinapis alba (white mustard)Results agree
1 paper in the same direction as this paper
- positive
nitrogen · nutrient: content · Sinapis alba (white mustard)Results agree
3 papers in the same direction as this paper
- positive
- 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.