Abstract
A pot experiment was conducted to study the effect of soil moisture on water utilization characteristics of rice. Results showed that the cumulative water consumption of rice during the whole growth period under conventional flooding cultivation was significantly more than that under non-flooding cultivation with plastic film mulching,but slightly less than that under flooding cultivation with plastic film mulching. Compared to conventional flooding cultivation,the rice grain yield was not decreased or even increased with the increased water productivity under light and no water stress treatments with plastic film mulching. The cumulative water consumption of rice,the water consumption at each growth stage and its consumption intensity were decreased gradually with the decreasing soil moisture. And a significantly quadratic correlation was found between the field water-holding capacity and the cumulative water consumption of rice. The highest water consumption at each stage and the highest periodic consumption ratio were found at the elongation and booting stages under no water-stress treatments with plastic film mulching,and at the milky ripeness stage under the other treatments. With the decreasing soil water content,the periodic consumption ratio gradually reduced before heading and flowering,whereas increased after heading and flowering,in addition,the consumption intensity decreased. The number of effective panicles and the number of grains per panicle decreased with reducing water moisture,resulting in the declined rice yield. However,the water productivity increased gradually first and then decreased with the decreasing soil moisture. Quadratic correlation was also observed between the yield and the water productivity of rice.
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Claims 15
Claim · model-written summary
Conventional flooding consumed significantly more water than non-flooding with plastic mulch.
- Taxon
- rice
Oryza sativae0 - Treatment
- conventional flooding cultivatione0
- Outcome
- cumulative water consumption of ricee0
- Direction
- more thane0
- Comparator
- non-flooding cultivation with plastic film mulchinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cumulative water consumption of rice during the whole growth period under conventional flooding cultivation was significantly more than that under non-flooding cultivation with plastic film mulching”
Claim · model-written summary
Conventional flooding consumed slightly less water than flooding with plastic mulch.
- Taxon
- riceOryza sativae0
- Treatment
- conventional flooding cultivatione0
- Outcome
- cumulative water consumption of ricee0
- Direction
- less thane0
- Comparator
- flooding cultivation with plastic film mulchinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cumulative water consumption of rice during the whole growth period under conventional flooding cultivation was significantly more than that under non-flooding cultivation with plastic film mulching,but slightly less than that under flooding cultivation with plastic film mulching”
Claim · model-written summary
With light or no stress and mulch, rice grain yield did not decrease or increased relative to conventional flooding.
- Taxon
- riceOryza sativae0
- Treatment
- light and no water stress treatments with plastic film mulchinge0
- Outcome
- rice grain yielde0
- Direction
- not decreased or even increasede0
- Comparator
- conventional flooding cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to conventional flooding cultivation,the rice grain yield was not decreased or even increased with the increased water productivity under light and no water stress treatments with plastic film mulching”
Claim · model-written summary
Water productivity increased under light and no stress with mulch.
- Taxon
- riceOryza sativat0
- Treatment
- light and no water stress treatments with plastic film mulchinge0
- Outcome
- water productivitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased water productivity under light and no water stress treatments with plastic film mulching”
t0“rice”
Claim · model-written summary
Cumulative water consumption, stage water consumption and consumption intensity fell as soil moisture fell.
- Taxon
- riceOryza sativae0
- Treatment
- decreasing soil moisturee0
- Outcome
- cumulative water consumption of rice,the water consumption at each growth stage and its consumption intensitye0
- Direction
- decreased graduallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cumulative water consumption of rice,the water consumption at each growth stage and its consumption intensity were decreased gradually with the decreasing soil moisture”
Claim · model-written summary
Field water holding capacity and cumulative water consumption had a significant quadratic correlation.
- Taxon
- riceOryza sativae0
- Outcome
- cumulative water consumption of ricee0
- Qualifier
- significantly quadratic correlatione0
- Setting
- fielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significantly quadratic correlation was found between the field water-holding capacity and the cumulative water consumption of rice”
Claim · model-written summary
Peak stage water consumption and periodic ratio occurred at elongation and booting with no stress and mulch.
- Taxon
- riceOryza sativat0
- Organ / stage
- elongation and booting stagese0
- Treatment
- no water-stress treatments with plastic film mulchinge0
- Outcome
- water consumption at each stage and the highest periodic consumption ratioe0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest water consumption at each stage and the highest periodic consumption ratio were found at the elongation and booting stages under no water-stress treatments with plastic film mulching”
t0“rice”
Claim · model-written summary
Under other treatments, peak stage consumption and ratio occurred at milky ripeness.
- Taxon
- riceOryza sativat0
- Organ / stage
- milky ripeness stagee0
- Treatment
- other treatmentse0
- Outcome
- water consumption at each stage and the highest periodic consumption ratioe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest water consumption at each stage and the highest periodic consumption ratio were found at the elongation and booting stages under no water-stress treatments with plastic film mulching,and at the milky ripeness stage under the other treatments”
t0“rice”
Claim · model-written summary
As soil water fell, periodic consumption ratio fell before heading and flowering.
- Taxon
- riceOryza sativat0
- Organ / stage
- before heading and floweringe0
- Treatment
- decreasing soil water contente0
- Outcome
- periodic consumption ratioe0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the decreasing soil water content,the periodic consumption ratio gradually reduced before heading and flowering”
t0“rice”
Claim · model-written summary
As soil water fell, periodic consumption ratio rose after heading and flowering.
- Taxon
- riceOryza sativat0
- Organ / stage
- after heading and floweringe0
- Treatment
- decreasing soil water contente0
- Outcome
- periodic consumption ratioe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the decreasing soil water content,the periodic consumption ratio gradually reduced before heading and flowering,whereas increased after heading and flowering”
t0“rice”
Claim · model-written summary
Consumption intensity declined as soil water fell.
- Taxon
- riceOryza sativat0
- Treatment
- decreasing soil water contente0
- Outcome
- consumption intensitye0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the decreasing soil water content,the periodic consumption ratio gradually reduced before heading and flowering,whereas increased after heading and flowering,in addition,the consumption intensity decreased”
t0“rice”
Claim · model-written summary
Effective panicle number and grains per panicle decreased with less moisture.
- Taxon
- riceOryza sativat0
- Treatment
- reducing water moisturee0
- Outcome
- number of effective panicles and the number of grains per paniclee0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of effective panicles and the number of grains per panicle decreased with reducing water moisture”
t0“rice”
Claim · model-written summary
Rice yield declined with falling moisture and yield components.
- Taxon
- riceOryza sativae0
- Treatment
- soil moisturet0
- Outcome
- rice yielde0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“resulting in the declined rice yield”
t0“soil moisture on water utilization characteristics of rice”
Claim · model-written summary
Water productivity first increased and then decreased as moisture declined.
- Taxon
- riceOryza sativat0
- Treatment
- decreasing soil moisturee0
- Outcome
- water productivitye0
- Direction
- increased gradually first and then decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water productivity increased gradually first and then decreased with the decreasing soil moisture”
t0“rice”
Claim · model-written summary
Rice yield and water productivity showed a quadratic correlation.
- Taxon
- riceOryza sativae0
- Outcome
- yield and the water productivity of ricee0
- Qualifier
- Quadratic correlatione0
Not reportedOrgan / stageDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quadratic correlation was also observed between the yield and the water productivity of rice”
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