Abstract
Rice variety Feng-Hua-Zhan was selected through pot experiment to study the effects of water stress on plant morphology,root activity,leaf cholorophyll content,yield and yield component,water was withheld 15 d at different growing stages.The results showed that water stress decreased plant height,tillers,leaf cholorophyll content and dry matter accumulation in root and aboveground parts,and plant height and tillers could restore to normal level after re-irrigation while dry matter couldn't.Root activity increased significantly after drought treatment,and it even could keep higher level than control after re-irrigated at panicle differentiation and heading stage.Water stress at different growth stages significantly reduced rice yield,the order of reductuion was heading stage,panicle differentiation stage,filling stage and tillering stage.Water stress at tilling stage mainly influenced effective panicles,while it was effective panicles,grains per panicle and filled grains at panicle differentiation stage,and grains per panicle,filled grains and 1000-grain weight at heading stage,filled grains and 1000-grain weight at filling stage.
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Claims 10
Claim · model-written summary
Water stress reduced plant height, tillers, chlorophyll and root and aboveground dry matter.
- Taxon
- Rice
Oryza sativat0 - Treatment
- water stresse0
- Outcome
- plant height,tillers,leaf cholorophyll contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water stress decreased plant height,tillers,leaf cholorophyll content and dry matter accumulation in root and aboveground parts”
t0“Rice”
Claim · model-written summary
Plant height and tillers recovered after re-irrigation.
- Taxon
- RiceOryza sativat0
- Treatment
- re-irrigatione0
- Outcome
- plant height and tillerse0
- Direction
- restoree0
- Comparator
- normal levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height and tillers could restore to normal level after re-irrigation while dry matter couldn't.”
t0“Rice”
Claim · model-written summary
Dry matter did not recover to normal after re-irrigation.
- Taxon
- RiceOryza sativat0
- Treatment
- re-irrigatione0
- Outcome
- dry mattere0
- Direction
- couldn'te0
- Comparator
- normal levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height and tillers could restore to normal level after re-irrigation while dry matter couldn't.”
t0“Rice”
Claim · model-written summary
Drought significantly increased root activity.
- Taxon
- RiceOryza sativat0
- Treatment
- drought treatmente0
- Outcome
- Root activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root activity increased significantly after drought treatment”
t0“Rice”
Claim · model-written summary
After re-irrigation at panicle differentiation and heading, root activity stayed above control.
- Taxon
- RiceOryza sativat0
- Organ / stage
- panicle differentiation and heading stagee0
- Treatment
- re-irrigatede0
- Outcome
- higher levele0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it even could keep higher level than control after re-irrigated at panicle differentiation and heading stage.”
t0“Rice”
Claim · model-written summary
Water stress at different stages significantly reduced rice yield, most at heading and least at tillering.
- Taxon
- riceOryza sativae0
- Treatment
- Water stresse0
- Outcome
- rice yielde0
- Direction
- reducede0
- Qualifier
- heading stage,panicle differentiation stage,filling stage and tillering stagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress at different growth stages significantly reduced rice yield,the order of reductuion was heading stage,panicle differentiation stage,filling stage and tillering stage.”
Claim · model-written summary
Tillering-stage stress mainly affected effective panicles.
- Taxon
- RiceOryza sativat0
- Treatment
- Water stress at tilling stagee0
- Outcome
- effective paniclese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress at tilling stage mainly influenced effective panicles”
t0“Rice”
Claim · model-written summary
Panicle-differentiation stress affected effective panicles, grains per panicle and filled grains.
- Taxon
- RiceOryza sativat0
- Treatment
- panicle differentiation stagee0
- Outcome
- effective panicles,grains per panicle and filled grainse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was effective panicles,grains per panicle and filled grains at panicle differentiation stage”
t0“Rice”
Claim · model-written summary
Heading-stage stress affected grains per panicle, filled grains and thousand-grain weight.
- Taxon
- RiceOryza sativat0
- Treatment
- heading stagee0
- Outcome
- grains per panicle,filled grains and 1000-grain weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grains per panicle,filled grains and 1000-grain weight at heading stage”
t0“Rice”
Claim · model-written summary
Filling-stage stress affected filled grains and thousand-grain weight.
- Taxon
- RiceOryza sativat0
- Treatment
- filling stagee0
- Outcome
- filled grains and 1000-grain weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“filled grains and 1000-grain weight at filling stage.”
t0“Rice”
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