Abstract
In this research, we analyzed the impact of waterlogging stress on the soil invertase activity (SIA), soil urease activity (SUA), maize growth-related indicators and maize yield-related indicators, and obtained the correlations between them.Results showed that waterlogging stress has different degrees of negative effects on the two enzyme activities, as well as most of maize growth-related/yield-related indicators.The negative effect is intensified with the increase of flooding depth or duration, and the flooding depth had a greater effect than the flooding duration.Compared with the treatment of no waterlogging control (treatment CK), the treatment of waterlogging lasting 4 d with depth of 15 cm (treatment H3T2) resulted in a decrease of SIA by 44.1% (1 d), 29.7% (7 d) and 21.4% (21 d), and reduced SUA by 25.8% (1 d), 21.5% (7 d) and 10.3% (21 d), respectively.The waterlogging adversely affected the yield of maize.Kernel dry weight (KDW) is directly related to corn yield, and decreased by 18.5% compared with treatment CK.SIA and SUA showed strong positive correlation with most growth-related/yield-related indicators, but SUA showed a slightly stronger correlation with these indicators than SIA.Among 10 indicators, there were 8 indicators whose correlation coefficient with SIA exceeded 0.8, accounting for about 80%.There were 9 indicators whose correlation coefficient with SUA exceeded 0.8, accounting for about 90% of the 10 indicators.In cluster analysis, KDW of waterlogging stress was prioritized into four main clusters.The flooding depth of 10 cm (H = 10 cm) and the flooding duration of 4 d (T = 4 d) were regarded as critical point in the study.
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Claims 19
Claim · model-written summary
Waterlogging harmed soil enzyme activities and most maize growth and yield indicators.
- Treatment
- waterlogging stresse0
- Outcome
- maize growth-related/yield-related indicatorse0
- Direction
- negative effectse0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed that waterlogging stress has different degrees of negative effects on the two enzyme activities, as well as most of maize growth-related/yield-related indicators”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
Greater flooding depth or duration intensified the negative effect.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The negative effect is intensified with the increase of flooding depth or duration, and the flooding depth had a greater effect than the flooding duration”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
Flooding depth affected maize indicators more than duration.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the flooding depth had a greater effect than the flooding duration”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
After 1 d, H3T2 waterlogging reduced soil SIA by 44.1%.
- Treatment
- waterlogging lasting 4 d with depth of 15 cme0
- Outcome
- SIAe0
- Direction
- decreasee0
- Value
- 44.1%e0
- Qualifier
- 1 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of waterlogging lasting 4 d with depth of 15 cm (treatment H3T2) resulted in a decrease of SIA by 44.1% (1 d), 29.7% (7 d) and 21.4% (21 d), and reduced SUA by 25.8% (1 d), 21.5% (7 d) and 10.3% (21 d), respectively”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
After 7 d, H3T2 waterlogging reduced soil SIA by 29.7%.
- Treatment
- waterlogging lasting 4 d with depth of 15 cme0
- Outcome
- SIAe0
- Direction
- decreasee0
- Value
- 29.7%e0
- Qualifier
- 7 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of waterlogging lasting 4 d with depth of 15 cm (treatment H3T2) resulted in a decrease of SIA by 44.1% (1 d), 29.7% (7 d) and 21.4% (21 d), and reduced SUA by 25.8% (1 d), 21.5% (7 d) and 10.3% (21 d), respectively”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
After 21 d, H3T2 waterlogging reduced soil SIA by 21.4%.
- Treatment
- waterlogging lasting 4 d with depth of 15 cme0
- Outcome
- SIAe0
- Direction
- decreasee0
- Value
- 21.4%e0
- Qualifier
- 21 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of waterlogging lasting 4 d with depth of 15 cm (treatment H3T2) resulted in a decrease of SIA by 44.1% (1 d), 29.7% (7 d) and 21.4% (21 d), and reduced SUA by 25.8% (1 d), 21.5% (7 d) and 10.3% (21 d), respectively”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
After 1 d, H3T2 waterlogging reduced soil SUA by 25.8%.
- Treatment
- waterlogging lasting 4 d with depth of 15 cme0
- Outcome
- SUAe0
- Direction
- reducede0
- Value
- 25.8%e0
- Qualifier
- 1 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of waterlogging lasting 4 d with depth of 15 cm (treatment H3T2) resulted in a decrease of SIA by 44.1% (1 d), 29.7% (7 d) and 21.4% (21 d), and reduced SUA by 25.8% (1 d), 21.5% (7 d) and 10.3% (21 d), respectively”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
After 7 d, H3T2 waterlogging reduced soil SUA by 21.5%.
- Treatment
- waterlogging lasting 4 d with depth of 15 cme0
- Outcome
- SUAe0
- Direction
- reducede0
- Value
- 21.5%e0
- Qualifier
- 7 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of waterlogging lasting 4 d with depth of 15 cm (treatment H3T2) resulted in a decrease of SIA by 44.1% (1 d), 29.7% (7 d) and 21.4% (21 d), and reduced SUA by 25.8% (1 d), 21.5% (7 d) and 10.3% (21 d), respectively”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
After 21 d, H3T2 waterlogging reduced soil SUA by 10.3%.
- Treatment
- waterlogging lasting 4 d with depth of 15 cme0
- Outcome
- SUAe0
- Direction
- reducede0
- Value
- 10.3%e0
- Qualifier
- 21 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of waterlogging lasting 4 d with depth of 15 cm (treatment H3T2) resulted in a decrease of SIA by 44.1% (1 d), 29.7% (7 d) and 21.4% (21 d), and reduced SUA by 25.8% (1 d), 21.5% (7 d) and 10.3% (21 d), respectively”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
Waterlogging adversely affected maize yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The waterlogging adversely affected the yield of maize”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
Kernel dry weight decreased by 18.5% against the control.
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kernel dry weight (KDW) is directly related to corn yield, and decreased by 18.5% compared with treatment CK”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
Soil invertase activity correlated positively with most maize growth and yield indicators.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SIA and SUA showed strong positive correlation with most growth-related/yield-related indicators”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
Soil urease activity correlated positively with most maize growth and yield indicators.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SIA and SUA showed strong positive correlation with most growth-related/yield-related indicators, but SUA showed a slightly stronger correlation with these indicators than SIA”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
SUA correlated slightly more strongly with the indicators than SIA.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SUA showed a slightly stronger correlation with these indicators than SIA”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
Eight of ten indicator correlations with SIA exceeded 0.8.
- Outcome
- correlation coefficient with SIAe0
- Direction
- exceedede0
- Value
- 0.8e0
- Qualifier
- 8 indicatorse0
- Comparator
- SIAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among 10 indicators, there were 8 indicators whose correlation coefficient with SIA exceeded 0.8, accounting for about 80%”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
Nine of ten indicator correlations with SUA exceeded 0.8.
- Outcome
- correlation coefficient with SUAe0
- Direction
- exceedede0
- Value
- 0.8e0
- Qualifier
- 9 indicatorse0
- Comparator
- SUAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were 9 indicators whose correlation coefficient with SUA exceeded 0.8, accounting for about 90% of the 10 indicators”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
Cluster analysis prioritized stressed kernel dry weight into four clusters.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cluster analysis, KDW of waterlogging stress was prioritized into four main clusters”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
The authors regarded 10 cm flooding depth as a critical point.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The flooding depth of 10 cm (H = 10 cm) and the flooding duration of 4 d (T = 4 d) were regarded as critical point in the study”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
Claim · model-written summary
The authors regarded 4 days flooding duration as a critical point.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The flooding depth of 10 cm (H = 10 cm) and the flooding duration of 4 d (T = 4 d) were regarded as critical point in the study”
t0“CORRELATION BETWEEN SOIL ENZYME ACTIVITIES AND MAIZE GROWTH UNDER WATERLOGGING STRESS”
The same questions in other papers
flooding · yield · Zea mays (maize)Positive and negative results
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See all 56 papers →flooding · soil: biology · Zea mays (maize)Results agree
3 papers in the same direction as this paper
- negative
- negative
- no effect
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.