Abstract
Two early indica rice varieties of Teyou 63 and Meiyou 998 were employed to study characteristics of the dry matter accumulation and N uptake and utilization of Indica rice at reproductive stage under different N levels.Results showed that high N rate improved the total dry matter accumulation and N content of leaf,panicle,stem and sheath of Indica rice.Meanwhile,it accelerated the dry matter and N transportation from leaf stem and sheath to panicle.Seed setting rate,and 1000-grain weight were significantly reduced by high N rate,however,panicle number and even grain number were significantly improved as well as rice yield.Under the application of pure N 234.0kg/hm2 conditions,the yield of Early and late Indica rice increased by 45.2% and 36.8%,respectively.In addition,high N rate significanlly increased N use efficiency of early and late Indica rice.These findings suggested that moderate-higher N rate improved rice yield and N use efficiency.
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Claims 7
Claim · model-written summary
High N rate increased total dry matter accumulation and N content of leaf, panicle, stem and sheath of Indica rice.
- Taxon
- Indica rice
Oryza sativa Indica Groupe0 - Organ / stage
- leaf,panicle,stem and sheathe0
- Treatment
- high N ratee0
- Outcome
- total dry matter accumulatione0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed that high N rate improved the total dry matter accumulation and N content of leaf,panicle,stem and sheath of Indica rice”
Claim · model-written summary
High N rate accelerated the transport of dry matter and N from leaf, stem and sheath to panicle.
- Taxon
- Indica riceOryza sativa Indica Groupe0
- Organ / stage
- from leaf stem and sheath to paniclee1
- Treatment
- high N ratee0
- Outcome
- dry matter and N transportatione1
- Direction
- acceleratede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed that high N rate improved the total dry matter accumulation and N content of leaf,panicle,stem and sheath of Indica rice”
e1“Meanwhile,it accelerated the dry matter and N transportation from leaf stem and sheath to panicle”
Claim · model-written summary
High N rate significantly reduced seed setting rate and 1000-grain weight of Indica rice.
- Taxon
- Indica riceOryza sativa Indica Groupe0
- Treatment
- high N ratee2
- Outcome
- Seed setting rate,and 1000-grain weighte2
- Direction
- significantly reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed that high N rate improved the total dry matter accumulation and N content of leaf,panicle,stem and sheath of Indica rice”
e2“Seed setting rate,and 1000-grain weight were significantly reduced by high N rate,however,panicle number and even grain number were significantly improved as well as rice yield”
Claim · model-written summary
High N rate significantly increased panicle number, grain number and rice yield of Indica rice.
- Taxon
- Indica riceOryza sativa Indica Groupe0
- Treatment
- high N ratee2
- Outcome
- panicle number and even grain numbere2
- Direction
- significantly improvede2
- Qualifier
- as well as rice yielde2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed that high N rate improved the total dry matter accumulation and N content of leaf,panicle,stem and sheath of Indica rice”
e2“Seed setting rate,and 1000-grain weight were significantly reduced by high N rate,however,panicle number and even grain number were significantly improved as well as rice yield”
Claim · model-written summary
Early Indica rice yield increased by 45.2% under pure N 234.0kg/hm2.
- Taxon
- Indica riceOryza sativa Indica Groupe3
- Material
- Earlye3
- Treatment
- pure N 234.0kg/hm2e3
- Outcome
- yielde3
- Direction
- increasede3
- Value
- 45.2%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Under the application of pure N 234.0kg/hm2 conditions,the yield of Early and late Indica rice increased by 45.2% and 36.8%,respectively”
Claim · model-written summary
Late Indica rice yield increased by 36.8% under pure N 234.0kg/hm2.
- Taxon
- Indica riceOryza sativa Indica Groupe3
- Material
- latee3
- Treatment
- pure N 234.0kg/hm2e3
- Outcome
- yielde3
- Direction
- increasede3
- Value
- 36.8%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Under the application of pure N 234.0kg/hm2 conditions,the yield of Early and late Indica rice increased by 45.2% and 36.8%,respectively”
Claim · model-written summary
High N rate increased N use efficiency of early and late Indica rice.
- Taxon
- Indica riceOryza sativa Indica Groupe4
- Material
- early and latee4
- Treatment
- high N ratee4
- Outcome
- N use efficiencye4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“In addition,high N rate significanlly increased N use efficiency of early and late Indica rice”
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See all 2,045 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.