Abstract
Few experiments have studied how seeding rates affect agronomic performance and end-use quality of modern wheat (Triticum aestivum L.) genotypes in the Great Plains. Higher grain yield and better quality grain production requires the use of appropriate seeding rates. During the 1997 and 1998 crop seasons, 20 winter wheat genotypes and experimental lines were evaluated at two locations (four environments) to assess seeding rate and genotype effects on agronomic performance and end-use quality of wheat. Significant differences among environments, seeding rates, and genotypes, and some of their interactions were identified. Lower seeding rates decreased plant population (by 62.3%), grain yield (by 0.8 Mg ha−1), kernel weight (by 1.3 mg kernel−1), flour yield (by 0.8 g/100 g grain), mixing time (by 0.7 min), caused later flowering (by 2 d), and increased flour protein content (by 15 mg g−1) and mixing tolerance (1 unit). Environment × genotype interactions were significant for all the traits except plant population and mixing tolerance. On the basis of the four environments, the seeding rate × genotype interactions were nonsignificant for all traits except plant height. These results provide evidence that agronomic performance and end-use quality traits are greatly influenced by the environmental conditions and less so by seeding rates. Seeding rate affected plant population, days to flowering, plant height, grain yield, kernel weight, flour yield, flour protein, and mixing time and tolerance of wheat; therefore, seeding rate should be considered as a factor in obtaining higher grain yields with good end-use quality.
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Claims 12
Claim · model-written summary
Environments, seeding rates, genotypes and some interactions differed significantly for assessed wheat traits.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Outcome
- Significant differences among environments, seeding rates, and genotypese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant differences among environments, seeding rates, and genotypes, and some of their interactions were identified”
t0“Winter Wheat”
Claim · model-written summary
Lower seeding rates decreased wheat plant population by 62.3%.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Lower seeding ratese0
- Outcome
- plant populatione0
- Direction
- decreasede0
- Value
- 62.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower seeding rates decreased plant population (by 62.3%), grain yield (by 0.8 Mg ha−1), kernel weight (by 1.3 mg kernel−1), flour yield (by 0.8 g/100 g grain), mixing time (by 0.7 min)”
t0“Winter Wheat”
Claim · model-written summary
Lower seeding rates decreased wheat grain yield by 0.8 Mg ha−1.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Lower seeding ratese0
- Outcome
- grain yielde0
- Direction
- decreasede0
- Value
- 0.8 Mg ha−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower seeding rates decreased plant population (by 62.3%), grain yield (by 0.8 Mg ha−1), kernel weight (by 1.3 mg kernel−1), flour yield (by 0.8 g/100 g grain), mixing time (by 0.7 min)”
t0“Winter Wheat”
Claim · model-written summary
Lower seeding rates decreased wheat kernel weight by 1.3 mg kernel−1.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Lower seeding ratese0
- Outcome
- kernel weighte0
- Direction
- decreasede0
- Value
- 1.3 mg kernel−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower seeding rates decreased plant population (by 62.3%), grain yield (by 0.8 Mg ha−1), kernel weight (by 1.3 mg kernel−1), flour yield (by 0.8 g/100 g grain), mixing time (by 0.7 min)”
t0“Winter Wheat”
Claim · model-written summary
Lower seeding rates decreased wheat flour yield by 0.8 g/100 g grain.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Lower seeding ratese0
- Outcome
- flour yielde0
- Direction
- decreasede0
- Value
- 0.8 g/100 g graine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower seeding rates decreased plant population (by 62.3%), grain yield (by 0.8 Mg ha−1), kernel weight (by 1.3 mg kernel−1), flour yield (by 0.8 g/100 g grain), mixing time (by 0.7 min)”
t0“Winter Wheat”
Claim · model-written summary
Lower seeding rates decreased wheat flour mixing time by 0.7 min.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Lower seeding ratese0
- Outcome
- mixing timee0
- Direction
- decreasede0
- Value
- 0.7 mine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower seeding rates decreased plant population (by 62.3%), grain yield (by 0.8 Mg ha−1), kernel weight (by 1.3 mg kernel−1), flour yield (by 0.8 g/100 g grain), mixing time (by 0.7 min)”
t0“Winter Wheat”
Claim · model-written summary
Lower seeding rates delayed wheat flowering by 2 d.
- Taxon
- Winter WheatTriticum aestivumt0
- Outcome
- floweringe0
- Direction
- latere0
- Value
- 2 de0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“caused later flowering (by 2 d)”
t0“Winter Wheat”
Claim · model-written summary
Lower seeding rates increased wheat flour protein by 15 mg g−1.
- Taxon
- Winter WheatTriticum aestivumt0
- Outcome
- flour protein contente0
- Direction
- increasede0
- Value
- 15 mg g−1e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased flour protein content (by 15 mg g−1) and mixing tolerance (1 unit)”
t0“Winter Wheat”
Claim · model-written summary
Lower seeding rates increased wheat mixing tolerance by one unit.
- Taxon
- Winter WheatTriticum aestivumt0
- Outcome
- mixing tolerancee0
- Direction
- increasede0
- Value
- 1 unite0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased flour protein content (by 15 mg g−1) and mixing tolerance (1 unit)”
t0“Winter Wheat”
Claim · model-written summary
Environment by genotype interactions were significant for wheat traits other than plant population and mixing tolerance.
- Taxon
- Winter WheatTriticum aestivumt0
- Outcome
- Environment × genotype interactionse0
- Qualifier
- except plant population and mixing tolerancee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Environment × genotype interactions were significant for all the traits except plant population and mixing tolerance”
t0“Winter Wheat”
Claim · model-written summary
Seeding rate by genotype interactions were nonsignificant for all wheat traits except plant height.
- Taxon
- Winter WheatTriticum aestivumt0
- Outcome
- seeding rate × genotype interactionse0
- Qualifier
- except plant heighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the seeding rate × genotype interactions were nonsignificant for all traits except plant height”
t0“Winter Wheat”
Claim · model-written summary
The authors recommend considering seeding rate to obtain higher wheat grain yield with good end-use quality.
- Taxon
- Winter WheatTriticum aestivumt0
- Outcome
- seeding rate should be considered as a factor in obtaining higher grain yields with good end-use qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seeding rate should be considered as a factor in obtaining higher grain yields with good end-use quality”
t0“Winter Wheat”
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