Abstract
The objective of this study was to investigate the effect of some amino acids on tillering and grain yield of bread wheat cultivars. A field experiment was carried out at the agricultural experiment station, College of Agriculture Engineering Sciences, University of Baghdad during the two winter seasons, 2016-2017 and 2017-2018. Randomized Complete Block Design within split plots arrangement was used in three replicates. The experiment included two factors, the first (main plots) was the wheat cultivars (IPA 99, Buhooth 22, and Abu-Graib3) and the second (sub-plots) was foliar application three amino acids (L-Tryptophan, L-Glycine, and L-Lysine) with concentrations 50 and 100 mg L-1 and the amino acid L-Cystine at 100 and 150 mg L-1 and control treatment. The treatments of foliar application were applied during two growth stages, the first was when the main stem had three leaves (ZGS: 13) and the second was when the plant entered the flowering stage (ZGS: 60). Results showed the significant superiority of Buhooth 22 in most growth traits, which produced the highest number of tillers.m-2 (556.30 and 568.15 tillers m-2), number of spikes (476.74 and 494.19 spikes m-2), weight of 1000 grains (31.09 and 32.43 g), and grain yield (5.39 and 5.15 Mg ha-1) for the two seasons respectively. The treatment of foliar application L-Tryptophan at 50 mg L-1 was significantly superior in most traits of yield components which produced the highest values of the number of tillers (616.89 and 627.78 tillers m-2), number of spikes (477.00 and 944.67 spikes m-2), weight of 1000 grains (32.01 and 33.55g), and grain yield (5.77 and 5.33Mg ha-1) in the two seasons, respectively. The response of wheat cultivar growth and yield to amino acids differed significantly.
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Claims 9
Claim · model-written summary
Buhooth 22 had the highest tiller counts of 556.30 and 568.15 tillers m-2 across two seasons.
- Taxon
- BREAD WHEAT
Triticum aestivumt0 - Material
- Buhooth 22e0
- Outcome
- number of tillers.m-2e0
- Direction
- higheste0
- Value
- 556.30 and 568.15 tillers m-2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Buhooth 22 in most growth traits, which produced the highest number of tillers.m-2 (556.30 and 568.15 tillers m-2)”
t0“BREAD WHEAT”
Claim · model-written summary
Buhooth 22 had the highest spike counts of 476.74 and 494.19 spikes m-2.
- Taxon
- BREAD WHEATTriticum aestivumt0
- Outcome
- number of spikese0
- Direction
- higherinferrede0
- Value
- 476.74 and 494.19 spikes m-2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of spikes (476.74 and 494.19 spikes m-2)”
t0“BREAD WHEAT”
Claim · model-written summary
Buhooth 22 had the highest thousand-grain weights of 31.09 and 32.43 g.
- Taxon
- BREAD WHEATTriticum aestivumt0
- Outcome
- weight of 1000 grainse0
- Direction
- higherinferrede0
- Value
- 31.09 and 32.43 ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“weight of 1000 grains (31.09 and 32.43 g)”
t0“BREAD WHEAT”
Claim · model-written summary
Buhooth 22 had the highest grain yields of 5.39 and 5.15 Mg ha-1.
- Taxon
- BREAD WHEATTriticum aestivumt0
- Outcome
- grain yielde0
- Direction
- higherinferrede0
- Value
- 5.39 and 5.15 Mg ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield (5.39 and 5.15 Mg ha-1)”
t0“BREAD WHEAT”
Claim · model-written summary
Foliar L-Tryptophan at 50 mg L-1 produced the highest tiller counts of 616.89 and 627.78 tillers m-2.
- Taxon
- BREAD WHEATTriticum aestivumt0
- Treatment
- foliar application L-Tryptophan at 50 mg L-1e0
- Outcome
- number of tillerse0
- Direction
- higheste0
- Value
- 616.89 and 627.78 tillers m-2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application L-Tryptophan at 50 mg L-1 was significantly superior in most traits of yield components which produced the highest values of the number of tillers (616.89 and 627.78 tillers m-2)”
t0“BREAD WHEAT”
Claim · model-written summary
Foliar L-Tryptophan at 50 mg L-1 produced spike counts of 477.00 and 944.67 spikes m-2.
- Taxon
- BREAD WHEATTriticum aestivumt0
- Outcome
- number of spikese0
- Direction
- higherinferrede0
- Value
- 477.00 and 944.67 spikes m-2e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of spikes (477.00 and 944.67 spikes m-2)”
t0“BREAD WHEAT”
Claim · model-written summary
Foliar L-Tryptophan at 50 mg L-1 produced thousand-grain weights of 32.01 and 33.55g.
- Taxon
- BREAD WHEATTriticum aestivumt0
- Outcome
- weight of 1000 grainse0
- Direction
- higherinferrede0
- Value
- 32.01 and 33.55ge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“weight of 1000 grains (32.01 and 33.55g)”
t0“BREAD WHEAT”
Claim · model-written summary
Foliar L-Tryptophan at 50 mg L-1 produced grain yields of 5.77 and 5.33Mg ha-1.
- Taxon
- BREAD WHEATTriticum aestivumt0
- Outcome
- grain yielde0
- Direction
- higherinferrede0
- Value
- 5.77 and 5.33Mg ha-1e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield (5.77 and 5.33Mg ha-1)”
t0“BREAD WHEAT”
Claim · model-written summary
Wheat growth and yield responses differed significantly among amino acid treatments.
- Taxon
- BREAD WHEATTriticum aestivumt0
- Treatment
- amino acidse0
- Outcome
- wheat cultivar growth and yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of wheat cultivar growth and yield to amino acids differed significantly.”
t0“BREAD WHEAT”
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794 papers in the same direction as this paper · 75 in the opposite direction · 7 reporting no difference from an alternative
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