Abstract
Different rice varieties and irrigation modes could affect water consumption of rice, which in turn could affect field water utilization. This study conducted experimental research on physiological indicators of rice growth and water utilization efficiency, to study their inner relationship under different rice varieties and irrigation modes. The results showed that, the effect of rice variety on water consumption was not significant (P>0.05), while it was obviously higher for conventional irrigation rather than that for water-saving irrigation modes. The effect of rice variety on rice height was extremely significant (P0.01), while the irrigation method effect was not significant (P>0.05). Hybrid rice showed a better growth status at late growth stage of rice leaves and root activity, which was favorable for nutrient absorption and high rice production.The average yield of hybrid rice was 31.9% higher than that of conventional single-season rice.The average WUE I and WUE ET under conventional singleseason rice was 20.3% and 22.7% lower than that under hybrid rice. The effect of rice variety on yield and WUE both showed significant difference (P0.05). After principal component analysis on different rice varieties, there were 2 and 3 principal components for single-season rice and hybrid rice respectively. Path relationship on water demand-comsumption-yield showed that field leakage had a significant positive impact on irrigation amount, water consumption, water utilization efficiency, and yield, while it had a significant negative impact on evapotranspiration. Irrigation amount had a significant negative impact on water consumption and water utilization efficiency of irrigation.
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Claims 14
Claim · model-written summary
Rice variety did not significantly affect water consumption.
- Taxon
- rice
Oryza sativae0 - Material
- rice varietye0
- Outcome
- water consumptione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of rice variety on water consumption was not significant (P>0.05)”
Claim · model-written summary
Conventional irrigation had higher water consumption than water-saving modes.
- Taxon
- RiceOryza sativat0
- Treatment
- conventional irrigatione0
- Outcome
- water consumptione1
- Direction
- highere0
- Comparator
- water-saving irrigation modese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was obviously higher for conventional irrigation rather than that for water-saving irrigation modes”
e1“the effect of rice variety on water consumption was not significant (P>0.05)”
t0“Rice”
Claim · model-written summary
Rice variety significantly affected height.
- Taxon
- riceOryza sativae0
- Material
- rice varietye0
- Outcome
- rice heighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of rice variety on rice height was extremely significant (P0.01)”
Claim · model-written summary
Irrigation method did not significantly affect rice height.
- Taxon
- RiceOryza sativat0
- Treatment
- irrigation methode0
- Outcome
- rice heighte1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the irrigation method effect was not significant (P>0.05)”
e1“The effect of rice variety on rice height was extremely significant (P0.01)”
t0“Rice”
Claim · model-written summary
Hybrid rice showed better late leaf growth and root activity.
- Taxon
- riceOryza sativae0
- Material
- Hybrid ricee0
- Outcome
- growth status at late growth stage of rice leaves and root activitye0
- Direction
- bettere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hybrid rice showed a better growth status at late growth stage of rice leaves and root activity”
Claim · model-written summary
Hybrid rice yield averaged 31.9% higher than conventional single-season rice.
- Taxon
- riceOryza sativae0
- Material
- hybrid ricee0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 31.9%e0
- Comparator
- conventional single-season ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average yield of hybrid rice was 31.9% higher than that of conventional single-season rice”
Claim · model-written summary
Conventional single-season rice WUE I averaged 20.3% lower than hybrid rice.
- Taxon
- riceOryza sativae0
- Material
- conventional singleseason ricee0
- Outcome
- WUE Ie0
- Direction
- lowere0
- Value
- 20.3%e0
- Comparator
- hybrid ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average WUE I and WUE ET under conventional singleseason rice was 20.3% and 22.7% lower than that under hybrid rice”
Claim · model-written summary
Conventional single-season rice WUE ET averaged 22.7% lower than hybrid rice.
- Taxon
- riceOryza sativae0
- Material
- conventional singleseason ricee0
- Outcome
- WUE ETe0
- Direction
- lowere0
- Value
- 22.7%e0
- Comparator
- hybrid ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average WUE I and WUE ET under conventional singleseason rice was 20.3% and 22.7% lower than that under hybrid rice”
Claim · model-written summary
Rice variety significantly affected yield and WUE.
- Taxon
- riceOryza sativae0
- Material
- rice varietye0
- Outcome
- yield and WUEe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of rice variety on yield and WUE both showed significant difference (P0.05)”
Claim · model-written summary
Principal component analysis yielded two components for single-season rice.
- Taxon
- riceOryza sativae0
- Material
- single-season ricee0
- Outcome
- principal componentse0
- Value
- 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were 2 and 3 principal components for single-season rice and hybrid rice respectively”
Claim · model-written summary
Principal component analysis yielded three components for hybrid rice.
- Taxon
- riceOryza sativae0
- Material
- hybrid ricee0
- Outcome
- principal componentse0
- Value
- 3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were 2 and 3 principal components for single-season rice and hybrid rice respectively”
Claim · model-written summary
Field leakage was positively related to irrigation amount, water consumption, water utilization efficiency, and yield.
- Taxon
- RiceOryza sativat0
- Outcome
- irrigation amount, water consumption, water utilization efficiency, and yielde0
- Direction
- positivee0
- Setting
- fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“field leakage had a significant positive impact on irrigation amount, water consumption, water utilization efficiency, and yield”
t0“Rice”
Claim · model-written summary
Field leakage was negatively related to evapotranspiration.
- Taxon
- RiceOryza sativat0
- Outcome
- evapotranspiratione0
- Direction
- negativee0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while it had a significant negative impact on evapotranspiration”
t0“Rice”
Claim · model-written summary
Irrigation amount was negatively related to water consumption and irrigation water utilization efficiency.
- Taxon
- RiceOryza sativat0
- Treatment
- Irrigation amounte0
- Outcome
- water consumption and water utilization efficiency of irrigatione0
- Direction
- negativee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation amount had a significant negative impact on water consumption and water utilization efficiency of irrigation”
t0“Rice”
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See all 380 papers →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.