Abstract
An experiment was conducted to find out grain yield, nitrogen concentration in the third leaf and nitrogen uptake by hybrid rice under different planting dates and nitrogen levels during 1999 and 2000. The hybrid rice planted on July 5 or 20 produced significantly higher nitrogen concentration in the third leaf, grain yield and nitrogen uptake by both grain and straw. The delayed planting between August 5 or 20 significantly reduced these crop parameters. The reduction in grain yield was to the extent of 14.06 and 28.23%, respectively compared with planting of July 5. Number of effective tillers, grains panicle-1, test weight, grain yield, N concentration in third leaf at different stages, nitrogen concentration and uptake by grain and straw increased significantly with increasing levels of nitrogen from 50 to 150 kg N ha-1. Highest R2 value has been observed for regression equation between N concentration in third leaf at 60 DAT and grain yield.
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Claims 11
Claim · model-written summary
July 5 or 20 planting produced higher nitrogen concentration in the third leaf in hybrid rice.
- Taxon
- hybrid rice
Oryza sativat0 - Treatment
- planted on July 5 or 20e0
- Outcome
- nitrogen concentration in the third leafe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“The hybrid rice planted on July 5 or 20 produced significantly higher nitrogen concentration in the third leaf, grain yield and nitrogen uptake by both grain and straw.”
Claim · model-written summary
July 5 or 20 planting produced higher grain yield in hybrid rice.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- planted on July 5 or 20e0
- Outcome
- grain yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“The hybrid rice planted on July 5 or 20 produced significantly higher nitrogen concentration in the third leaf, grain yield and nitrogen uptake by both grain and straw.”
Claim · model-written summary
July 5 or 20 planting produced higher nitrogen uptake by both grain and straw in hybrid rice.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- planted on July 5 or 20e0
- Outcome
- nitrogen uptake by both grain and strawe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“The hybrid rice planted on July 5 or 20 produced significantly higher nitrogen concentration in the third leaf, grain yield and nitrogen uptake by both grain and straw.”
Claim · model-written summary
Delayed August 5 or 20 planting reduced the reported crop parameters.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- delayed planting between August 5 or 20e0
- Outcome
- these crop parameterse0
- Direction
- reducede0
- Comparator
- July 5 or 20e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“The delayed planting between August 5 or 20 significantly reduced these crop parameters.”
e1“The hybrid rice planted on July 5 or 20 produced significantly higher nitrogen concentration in the third leaf, grain yield and nitrogen uptake by both grain and straw.”
Claim · model-written summary
August 5 planting reduced grain yield by 14.06 compared with July 5.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- August 5e1
- Outcome
- grain yielde0
- Direction
- reductione0
- Value
- 14.06e0
- Comparator
- planting of July 5e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“The reduction in grain yield was to the extent of 14.06 and 28.23%, respectively compared with planting of July 5.”
e1“The delayed planting between August 5 or 20 significantly reduced these crop parameters.”
Claim · model-written summary
20 planting reduced grain yield by 28.23% compared with July 5.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- 20e1
- Outcome
- grain yielde0
- Direction
- reductione0
- Value
- 28.23%e0
- Comparator
- planting of July 5e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“The reduction in grain yield was to the extent of 14.06 and 28.23%, respectively compared with planting of July 5.”
e1“The delayed planting between August 5 or 20 significantly reduced these crop parameters.”
Claim · model-written summary
Increasing nitrogen from 50 to 150 kg N ha-1 increased Number of effective tillers, grains panicle-1, test weight.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- increasing levels of nitrogen from 50 to 150 kg N ha-1e0
- Outcome
- Number of effective tillers, grains panicle-1, test weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“Number of effective tillers, grains panicle-1, test weight, grain yield, N concentration in third leaf at different stages, nitrogen concentration and uptake by grain and straw increased significantly with increasing levels of nitrogen from 50 to 150 kg N ha-1.”
Claim · model-written summary
Increasing nitrogen from 50 to 150 kg N ha-1 increased grain yield.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- increasing levels of nitrogen from 50 to 150 kg N ha-1e0
- Outcome
- grain yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“Number of effective tillers, grains panicle-1, test weight, grain yield, N concentration in third leaf at different stages, nitrogen concentration and uptake by grain and straw increased significantly with increasing levels of nitrogen from 50 to 150 kg N ha-1.”
Claim · model-written summary
Increasing nitrogen from 50 to 150 kg N ha-1 increased N concentration in third leaf at different stages.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- increasing levels of nitrogen from 50 to 150 kg N ha-1e0
- Outcome
- N concentration in third leaf at different stagese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“Number of effective tillers, grains panicle-1, test weight, grain yield, N concentration in third leaf at different stages, nitrogen concentration and uptake by grain and straw increased significantly with increasing levels of nitrogen from 50 to 150 kg N ha-1.”
Claim · model-written summary
Increasing nitrogen from 50 to 150 kg N ha-1 increased nitrogen concentration and uptake by grain and straw.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- increasing levels of nitrogen from 50 to 150 kg N ha-1e0
- Outcome
- nitrogen concentration and uptake by grain and strawe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“Number of effective tillers, grains panicle-1, test weight, grain yield, N concentration in third leaf at different stages, nitrogen concentration and uptake by grain and straw increased significantly with increasing levels of nitrogen from 50 to 150 kg N ha-1.”
Claim · model-written summary
The regression between third-leaf N concentration at 60 DAT and grain yield had the highest R2.
- Taxon
- hybrid riceOryza sativat0
- Organ / stage
- third leaf at 60 DATe0
- Outcome
- R2 valuee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid rice”
e0“Highest R2 value has been observed for regression equation between N concentration in third leaf at 60 DAT and grain yield.”
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