Abstract
Seventy-six rice genotypes recently applied in northern China were used as materials and field experiment was conducted to classify and evaluate rice genotypes with different nitrogen use efficiency(NUE). The results showed that there was significant difference of yield among different rice genotypes at two N levels. Based on grain yield variation under two nitrogen levels, 22 rice genotypes including Liaoyan No.2, Jijing 803, Liaoxing No.1 et al had N use efficiency and 27 rice genotypes including Tong 35, Shendao 12, Changbai 15 et al had low N use efficiency. Correlation between yield and yield components showed that yield were positively correlated with effective panicle number at 0.01 level under two N levels, and with grain number per panicle at 0.05 level under high N level. N agronomic efficiency and Partial factor productivity of applied N of rice genotypes with high N use efficiency were higher than those of rice genotypes with low N use efficiency.
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 6
Claim · model-written summary
Grain yield differed significantly among rice genotypes at two N levels.
- Taxon
- rice
Oryza sativat0 - Material
- rice genotypese1
- Treatment
- two N levelse2
- Outcome
- yielde2
- Setting
- field experimente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Different Rice Genotypes”
e1“Seventy-six rice genotypes recently applied in northern China were used as materials and field experiment was conducted”
e2“there was significant difference of yield among different rice genotypes at two N levels”
Claim · model-written summary
22 rice genotypes, including Liaoyan No.2, Jijing 803 and Liaoxing No.1, had N use efficiency based on grain yield variation under two N levels.
- Taxon
- riceOryza sativat0
- Material
- Liaoyan No.2, Jijing 803, Liaoxing No.1e3
- Treatment
- two nitrogen levelse3
- Outcome
- N use efficiencye3
- Value
- 22e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Different Rice Genotypes”
e3“Based on grain yield variation under two nitrogen levels, 22 rice genotypes including Liaoyan No.2, Jijing 803, Liaoxing No.1 et al had N use efficiency”
Claim · model-written summary
27 rice genotypes, including Tong 35, Shendao 12 and Changbai 15, had low N use efficiency.
- Taxon
- riceOryza sativat0
- Material
- Tong 35, Shendao 12, Changbai 15e4
- Outcome
- N use efficiencye4
- Value
- 27e4
- Qualifier
- lowe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Different Rice Genotypes”
e4“27 rice genotypes including Tong 35, Shendao 12, Changbai 15 et al had low N use efficiency”
Claim · model-written summary
Grain yield was positively correlated with effective panicle number at the 0.01 level under two N levels.
- Taxon
- riceOryza sativat0
- Treatment
- two N levelse5
- Outcome
- yielde5
- Direction
- positively correlatede5
- Qualifier
- effective panicle number at 0.01 levele5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Different Rice Genotypes”
e5“Correlation between yield and yield components showed that yield were positively correlated with effective panicle number at 0.01 level under two N levels”
Claim · model-written summary
Grain yield was positively correlated with grain number per panicle at the 0.05 level under high N level.
- Taxon
- riceOryza sativat0
- Treatment
- high N levele6
- Outcome
- yielde6
- Direction
- positively correlatede6
- Qualifier
- grain number per panicle at 0.05 levele6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Different Rice Genotypes”
e6“yield were positively correlated with effective panicle number at 0.01 level under two N levels, and with grain number per panicle at 0.05 level under high N level”
Claim · model-written summary
N agronomic efficiency and partial factor productivity of applied N were higher in rice genotypes with high N use efficiency than in those with low N use efficiency.
- Taxon
- riceOryza sativat0
- Material
- rice genotypes with high N use efficiencye7
- Outcome
- N agronomic efficiency and Partial factor productivity of applied Ne7
- Direction
- highere7
- Comparator
- rice genotypes with low N use efficiencye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Different Rice Genotypes”
e7“N agronomic efficiency and Partial factor productivity of applied N of rice genotypes with high N use efficiency were higher than those of rice genotypes with low N use efficiency”