Abstract
In order to clarify the regulation mechanism of stem lodging under different densities and irrigation schedules,an experiment was conducted in field.The experiment included 5 irrigation schedules such as no irrigation(W0),irrigation once at jointing(W1j) or at booting(W1b),irrigation twice at jointing and booting(W2),and irrigation three times at jointing,booting and grain-filling(W3),and 3 planting densities such as 180(D1),300(D2) and 450 seedlings per square meter(D3).The results indicated that irrigation had a significant effect on stem traits and lodging index.Plant height,stem gravity height and grain yield presented a low-high-low variation trend with the increasing of irrigation times.Dry weight of stem and basal internodes per centimeter,dry matter output of stem and basal intermodes per centimeter,stem diameter and stem mechanical strength decreased significantly with the increasing of irrigation times.Stem indexes of W2 such as plant height,stem diameter,stem mechanical strength,dry weight of stem and basal internodes per centimeter and grain yield were superior to other irrigation schedules.At the same time,plant height and associated gravity height became increased significantly.With the increasing of densities.Stem diameter,stem mechanical strength,dry weight of stem and basal internodes per centimeter,dry matter output of stem and basal internodes per cetimeter decreased significantly with the increasing of densities.And grain yield of D2 was higher,followed by D3 and D1.It indicated that spring irrigations applied at jointing and booting stage(W2),and combining with 300 seedlings per square meter could improve stem quality,lodging resistance and grain yield effectively.
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Claims 8
Claim · model-written summary
Irrigation significantly affected stem traits and lodging index.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Treatment
- irrigatione0
- Outcome
- stem traits and lodging indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation had a significant effect on stem traits and lodging index”
t0“Winter Wheat”
Claim · model-written summary
Plant height, stem gravity height and grain yield followed a low-high-low trend with more irrigations.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- increasing of irrigation timese0
- Outcome
- Plant height,stem gravity height and grain yielde0
- Direction
- low-high-low variation trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant height,stem gravity height and grain yield presented a low-high-low variation trend with the increasing of irrigation times”
t0“Winter Wheat”
Claim · model-written summary
Stem and basal internode dry weights and dry matter output per centimeter, stem diameter and mechanical strength declined as irrigation frequency increased.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- increasing of irrigation timese0
- Outcome
- Dry weight of stem and basal internodes per centimeter,dry matter output of stem and basal intermodes per centimeter,stem diameter and stem mechanical strengthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry weight of stem and basal internodes per centimeter,dry matter output of stem and basal intermodes per centimeter,stem diameter and stem mechanical strength decreased significantly with the increasing of irrigation times”
t0“Winter Wheat”
Claim · model-written summary
W2 had superior plant height, diameter, strength, dry weight and yield compared with other irrigation schedules.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- W2e0
- Outcome
- plant height,stem diameter,stem mechanical strength,dry weight of stem and basal internodes per centimeter and grain yielde0
- Direction
- superiore0
- Comparator
- other irrigation schedulese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stem indexes of W2 such as plant height,stem diameter,stem mechanical strength,dry weight of stem and basal internodes per centimeter and grain yield were superior to other irrigation schedules”
t0“Winter Wheat”
Claim · model-written summary
Plant height and gravity height increased significantly with planting density.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- increasing of densitiese0
- Outcome
- plant height and associated gravity heighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height and associated gravity height became increased significantly.With the increasing of densities”
t0“Winter Wheat”
Claim · model-written summary
Stem diameter, strength, dry weights and dry matter output decreased significantly as density increased.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- increasing of densitiese0
- Outcome
- Stem diameter,stem mechanical strength,dry weight of stem and basal internodes per centimeter,dry matter output of stem and basal internodes per cetimetere0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stem diameter,stem mechanical strength,dry weight of stem and basal internodes per centimeter,dry matter output of stem and basal internodes per cetimeter decreased significantly with the increasing of densities”
t0“Winter Wheat”
Claim · model-written summary
Grain yield ranked D2 above D3 above D1.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- D2e0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- D3 and D1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield of D2 was higher,followed by D3 and D1”
t0“Winter Wheat”
Claim · model-written summary
The authors recommend W2 irrigation with 300 seedlings per square meter for stem quality, lodging resistance and yield.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- spring irrigations applied at jointing and booting stage(W2),and combining with 300 seedlings per square metere0
- Outcome
- stem quality,lodging resistance and grain yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring irrigations applied at jointing and booting stage(W2),and combining with 300 seedlings per square meter could improve stem quality,lodging resistance and grain yield effectively”
t0“Winter Wheat”
The same questions in other papers
irrigation · yield · Triticum aestivum (wheat)Positive and negative results
190 papers in the same direction as this paper · 798 in the opposite direction
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