Abstract
Grain amaranth ( Amaranthus spp.) is a C4 dicotyledonous pseudocereal crop that was widely cultivated in pre‐Columbian America. It was successfully introduced in many regions with contrasting environmental conditions. The introduction of grain amaranth in eastern Canada would represent an opportunity for diversification. A study was conducted to evaluate management practices for grain amaranth grown in this region. Three field experiments replicated in three environments were conducted to evaluate the following factors: (i) seeding date (mid‐May, early‐June, and mid‐June) and cultivar (K432, K593, and Plainsman); (ii) row spacing (38, 58, and 76 cm) and seeding rate (1, 2, and 4 kg ha −1 ), and (iii) N fertilization rate (0, 50, 100, 150, and 200 kg N ha −1 ) and cultivar (D136 and Plainsman). Seeding date affected grain yield in only one out of three environments, with the earlier date resulting in the highest yields. Cultivars differed in yield in only one of three environments, with Plainsman resulting in highest yields. Later seeding dates resulted in higher seed moisture at harvest in all environments. Seeding rate and row spacing did not affect grain yield, but row spacing affected grain moisture at harvest, with narrower rows resulting in grains with lower moisture content. Nitrogen fertilization increased yield and lodging in only one environment. Seed moisture and plant height were positively related to N fertilization in all environments. Cultivar D136 yielded more than Plainsman in 2005 and less in 2006. Therefore, grain amaranth production in eastern Canada seems possible, management practices having limited impact on grain yield, which averaged 923 kg ha −1 across all experiments and environments.
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Claims 13
Claim · model-written summary
Earlier seeding gave highest yield in one of three environments.
- Taxon
- Grain amaranth
Amaranthus hypochondriacust0 - Treatment
- earlier datee0
- Outcome
- grain yielde0
- Direction
- higheste0
- Qualifier
- only one out of three environmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding date affected grain yield in only one out of three environments, with the earlier date resulting in the highest yields”
t0“Grain amaranth”
Claim · model-written summary
Plainsman had highest yield in one of three environments.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Material
- Plainsmane0
- Outcome
- yielde0
- Direction
- higheste0
- Qualifier
- only one of three environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivars differed in yield in only one of three environments, with Plainsman resulting in highest yields”
t0“Grain amaranth”
Claim · model-written summary
Later seeding raised seed moisture at harvest in all environments.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Treatment
- Later seeding datese0
- Outcome
- seed moisture at harveste0
- Direction
- highere0
- Qualifier
- all environmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Later seeding dates resulted in higher seed moisture at harvest in all environments”
t0“Grain amaranth”
Claim · model-written summary
Seeding rate did not affect yield.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Treatment
- Seeding ratee0
- Outcome
- grain yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing did not affect grain yield”
t0“Grain amaranth”
Claim · model-written summary
Row spacing did not affect yield.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Treatment
- row spacinge0
- Outcome
- grain yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing did not affect grain yield”
t0“Grain amaranth”
Claim · model-written summary
Narrow rows lowered grain moisture.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Treatment
- narrower rowse0
- Outcome
- moisture contente0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“row spacing affected grain moisture at harvest, with narrower rows resulting in grains with lower moisture content”
t0“Grain amaranth”
Claim · model-written summary
Nitrogen fertilizer increased yield in one environment.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Treatment
- Nitrogen fertilizatione0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- only one environmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization increased yield and lodging in only one environment”
t0“Grain amaranth”
Claim · model-written summary
Nitrogen fertilizer increased lodging in one environment.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Treatment
- Nitrogen fertilizatione0
- Outcome
- lodginge0
- Direction
- increasede0
- Qualifier
- only one environmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization increased yield and lodging in only one environment”
t0“Grain amaranth”
Claim · model-written summary
Seed moisture rose with nitrogen fertilization in all environments.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Treatment
- N fertilizatione0
- Outcome
- Seed moisturee0
- Direction
- positively relatede0
- Qualifier
- all environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed moisture and plant height were positively related to N fertilization in all environments”
t0“Grain amaranth”
Claim · model-written summary
Plant height rose with nitrogen fertilization in all environments.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Treatment
- N fertilizatione0
- Outcome
- plant heighte0
- Direction
- positively relatede0
- Qualifier
- all environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed moisture and plant height were positively related to N fertilization in all environments”
t0“Grain amaranth”
Claim · model-written summary
D136 yielded more than Plainsman in 2005.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Material
- D136e0
- Outcome
- yieldede0
- Direction
- moree0
- Qualifier
- 2005e0
- Comparator
- Plainsmane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivar D136 yielded more than Plainsman in 2005 and less in 2006”
t0“Grain amaranth”
Claim · model-written summary
D136 yielded less than Plainsman in 2006.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Material
- D136e0
- Outcome
- yieldede0
- Direction
- lesse0
- Qualifier
- 2006e0
- Comparator
- Plainsmane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivar D136 yielded more than Plainsman in 2005 and less in 2006”
t0“Grain amaranth”
Claim · model-written summary
Mean grain yield across trials was 923 kg ha −1.
- Taxon
- Grain amaranthAmaranthus hypochondriacust0
- Outcome
- grain yielde0
- Value
- 923 kg ha −1e0
- Qualifier
- across all experiments and environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield, which averaged 923 kg ha −1 across all experiments and environments”
t0“Grain amaranth”
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