Abstract
The biological characteristics of super-hybrid rice cultivars Liangyoupeijiu and Honglianyou No.6 were compared to evaluate rice production potential and water use efficiency under 4 different irrigation methods,including intermittent irrigation(B),semi-dry cultivation(C),dry cultivation(D) and continuous flooding(A).The results show a delay in rice growth with decreasing irrigation trend.Growth duration under dry cultivation is the longest and lags by 13.5 days,compared with continuous flooding.Tillering occurs 5 to 7 days later under intermittent irrigation than under continuous flooding.Compared with continuous flooding,intermittent irrigation improves leaf photosynthetic rate,decreases leaf transpiration rate and increases leaf area index,thus water use efficiency of rice.Leaf transpiration rate declines more rapidly than pure photosynthetic rate,thus water use efficiency is relatively higher under semi-dry cultivation.Both pure photosynthetic rate and water use efficiency are much lower,and leaf presenility occurs under dry cultivation in the late growth stage.Significant differences in plant height,leaf area index and stomatal conductance are observed between intermittent irrigation and semi-dry,dry cultivations,but not between intermittent irrigation and continuous flooding.Thus intermittent irrigation method improves rice biological characteristics the most when compared with the other 3 irrigation methods and therefore preferred recommended practice.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 13
Claim · model-written summary
Rice growth was delayed as irrigation decreased.
- Taxon
- rice
Oryza sativat0 - Treatment
- decreasing irrigation trende0
- Outcome
- rice growthe0
- Direction
- delaye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“a delay in rice growth with decreasing irrigation trend”
Claim · model-written summary
Dry cultivation extended growth duration by 13.5 days against continuous flooding.
- Taxon
- riceOryza sativat0
- Treatment
- dry cultivatione0
- Outcome
- Growth duratione0
- Direction
- longeste0
- Value
- 13.5 dayse0
- Comparator
- continuous floodinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Growth duration under dry cultivation is the longest and lags by 13.5 days,compared with continuous flooding”
Claim · model-written summary
Intermittent irrigation delayed tillering by 5 to 7 days versus continuous flooding.
- Taxon
- riceOryza sativat0
- Treatment
- intermittent irrigatione0
- Outcome
- Tilleringe0
- Direction
- latere0
- Value
- 5 to 7 dayse0
- Comparator
- continuous floodinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Tillering occurs 5 to 7 days later under intermittent irrigation than under continuous flooding”
Claim · model-written summary
Intermittent irrigation improved leaf photosynthetic rate relative to flooding.
- Taxon
- riceOryza sativat0
- Treatment
- intermittent irrigatione0
- Outcome
- leaf photosynthetic ratee0
- Direction
- improvese0
- Comparator
- continuous floodinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Compared with continuous flooding,intermittent irrigation improves leaf photosynthetic rate,decreases leaf transpiration rate and increases leaf area index,thus water use efficiency of rice”
Claim · model-written summary
Intermittent irrigation decreased leaf transpiration relative to flooding.
- Taxon
- riceOryza sativat0
- Treatment
- intermittent irrigatione0
- Outcome
- leaf transpiration ratee0
- Direction
- decreasese0
- Comparator
- continuous floodinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Compared with continuous flooding,intermittent irrigation improves leaf photosynthetic rate,decreases leaf transpiration rate and increases leaf area index,thus water use efficiency of rice”
Claim · model-written summary
Intermittent irrigation increased leaf area index relative to flooding.
- Taxon
- riceOryza sativat0
- Treatment
- intermittent irrigatione0
- Outcome
- leaf area indexe0
- Direction
- increasese0
- Comparator
- continuous floodinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Compared with continuous flooding,intermittent irrigation improves leaf photosynthetic rate,decreases leaf transpiration rate and increases leaf area index,thus water use efficiency of rice”
Claim · model-written summary
Intermittent irrigation increased rice water use efficiency relative to flooding.
- Taxon
- riceOryza sativae0
- Treatment
- intermittent irrigatione0
- Outcome
- water use efficiency of ricee0
- Direction
- improvese0
- Comparator
- continuous floodinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with continuous flooding,intermittent irrigation improves leaf photosynthetic rate,decreases leaf transpiration rate and increases leaf area index,thus water use efficiency of rice”
Claim · model-written summary
Under semi-dry cultivation, leaf transpiration fell faster than photosynthesis and water use efficiency was relatively higher.
- Taxon
- riceOryza sativat0
- Treatment
- semi-dry cultivatione0
- Outcome
- water use efficiencye0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Leaf transpiration rate declines more rapidly than pure photosynthetic rate,thus water use efficiency is relatively higher under semi-dry cultivation”
Claim · model-written summary
Dry cultivation yielded much lower photosynthetic rate and water use efficiency in late growth.
- Taxon
- riceOryza sativat0
- Organ / stage
- late growth stagee0
- Treatment
- dry cultivatione0
- Outcome
- pure photosynthetic rate and water use efficiencye0
- Direction
- much lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Both pure photosynthetic rate and water use efficiency are much lower,and leaf presenility occurs under dry cultivation in the late growth stage”
Claim · model-written summary
Leaf presenility occurred under dry cultivation in late growth.
- Taxon
- riceOryza sativat0
- Organ / stage
- late growth stagee0
- Treatment
- dry cultivatione0
- Outcome
- leaf presenilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“leaf presenility occurs under dry cultivation in the late growth stage”
Claim · model-written summary
Plant height, leaf area index, and stomatal conductance differed significantly between intermittent irrigation and semi-dry and dry cultivation.
- Taxon
- riceOryza sativat0
- Treatment
- intermittent irrigatione0
- Outcome
- plant height,leaf area index and stomatal conductancee0
- Comparator
- semi-dry,dry cultivationse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Significant differences in plant height,leaf area index and stomatal conductance are observed between intermittent irrigation and semi-dry,dry cultivations,but not between intermittent irrigation and continuous flooding”
Claim · model-written summary
Those traits did not differ significantly between intermittent irrigation and flooding.
- Taxon
- riceOryza sativat0
- Treatment
- intermittent irrigatione0
- Outcome
- plant height,leaf area index and stomatal conductancee0
- Comparator
- continuous floodinge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Significant differences in plant height,leaf area index and stomatal conductance are observed between intermittent irrigation and semi-dry,dry cultivations,but not between intermittent irrigation and continuous flooding”
Claim · model-written summary
The authors recommended intermittent irrigation.
- Taxon
- riceOryza sativat0
- Treatment
- intermittent irrigation methode0
- Outcome
- preferred recommended practicee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“intermittent irrigation method improves rice biological characteristics the most when compared with the other 3 irrigation methods and therefore preferred recommended practice”
The same questions in other papers
irrigation · physiology: gas exchange · Oryza sativa (rice)Positive and negative results
10 papers in the same direction as this paper · 3 in the opposite direction · 4 reporting no difference from an alternative
- negative
- negative
- negative
14 papers more in this group
See all 18 papers →irrigation · physiology: photosynthesis · Oryza sativa (rice)Positive and negative results
33 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- negative
36 papers more in this group
See all 40 papers →irrigation · growth · Oryza sativa (rice)Positive and negative results
221 papers in the same direction as this paper · 62 in the opposite direction · 7 reporting no difference from an alternative
- negative
- negative
- negative
287 papers more in this group
See all 291 papers →irrigation · physiology: water · Oryza sativa (rice)Positive and negative results
349 papers in the same direction as this paper · 25 in the opposite direction · 5 reporting no difference from an alternative
- negative
- no effect
- no effect
376 papers more in this group
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.