Abstract
1. In case of an identical variety being used and sown on a definite date, the dry weight of rice plants at the neck-node initiation stage was positively correlated with the amount of nitrogen at that stage and, furthermore, with the number of panicles and with the number of differentiated rachis-branches. In case of used varieties and sown dates being different, however, the correlation coefficient was considerably decreased. 2. The dry weight increased during the period from the neck-node initiation stage to the late spikelet initiation stage was positively correlated with the amount of nitrogen absorbed during this period and also with the number of differentiated secondary rachis-branches. The photosynthate produced in the period was progressively increased in leaf-blades in proportion to the total quantity with increasing nitrogen content in leaf-blades at the neck-node initiation stage or at the late spikelet initiation stage and, moreover, with increasing amount of nitrogen in the whole plant absorbed in the period. 3. The more amount of nitrogen was absorbed by the plant during the period from the neck-node initiation stage to the late spikelet initiation stage, the more amount of dry matter was produced in the period, but the less amount of stored carbohydrates was found in sheaths and culms at the late spikelet initiation stage or at the heading stage. 4. The dry weight increased during the period from the late spikelet initiation stage to the heading stage was positively correlated with the amount of nitrogen absorbed in the period as well as the amount of nitrogen in the whole plant at the heading stage. 5. The amount of stored carbohydrates at the heading stage had no connection with the amount of nitrogen absorbed during the period from the late spikelet initiation stage to the heading stage. However, in case of an equal amount of nitrogen being absorbed by the plants by the time of late spikelet initiation, the amount of stored carbohydrates in sheaths and culms at the heading stage was progressively increased with increasing amount of nitrogen absorbed in the period. 6. A negative correlation was found between the dry matter increased during the period from the late spikelet initiation stage to the heading stage and the number of degenerated rachis-blanches.
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Claims 11
Claim · model-written summary
Dry weight of rice at the neck-node initiation stage was positively correlated with the amount of nitrogen at that stage.
Verbatim
t0“Culture Improvement of Lowland Rice”
e1“the dry weight of rice plants at the neck-node initiation stage was positively correlated with the amount of nitrogen at that stage”
Claim · model-written summary
Dry weight at the neck-node initiation stage was positively correlated with the number of panicles.
Verbatim
t0“Culture Improvement of Lowland Rice”
e1“the dry weight of rice plants at the neck-node initiation stage was positively correlated with the amount of nitrogen at that stage”
e2“and, furthermore, with the number of panicles and with the number of differentiated rachis-branches”
Claim · model-written summary
The correlation coefficient was considerably decreased when varieties and sown dates differed.
Verbatim
t0“Culture Improvement of Lowland Rice”
e3“In case of used varieties and sown dates being different, however, the correlation coefficient was considerably decreased”
Claim · model-written summary
Dry weight increase from the neck-node to late spikelet initiation stage was positively correlated with nitrogen absorbed in that period and with secondary rachis-branches.
- Taxon
- Lowland Ricet0
- Organ / stage
- from the neck-node initiation stage to the late spikelet initiation stagee4
- Treatment
- the amount of nitrogen absorbed during this periode4
- Outcome
- dry weight increased during the periode4
- Direction
- positively correlatede4
- Qualifier
- also with the number of differentiated secondary rachis-branchese4
Verbatim
t0“Culture Improvement of Lowland Rice”
e4“The dry weight increased during the period from the neck-node initiation stage to the late spikelet initiation stage was positively correlated with the amount of nitrogen absorbed during this period and also with the number of differentiated secondary rachis-branches”
Claim · model-written summary
Photosynthate produced in the period progressively increased in leaf blades with increasing nitrogen content in leaf blades.
Verbatim
t0“Culture Improvement of Lowland Rice”
e5“The photosynthate produced in the period was progressively increased in leaf-blades in proportion to the total quantity with increasing nitrogen content in leaf-blades”
Claim · model-written summary
More nitrogen absorbed during the period increased dry matter production.
Verbatim
t0“Culture Improvement of Lowland Rice”
e6“The more amount of nitrogen was absorbed by the plant during the period from the neck-node initiation stage to the late spikelet initiation stage, the more amount of dry matter was produced in the period, but the less amount of stored carbohydrates was found in sheaths and culms at the late spikelet initiation stage or at the heading stage”
Claim · model-written summary
More nitrogen absorbed during the period lowered stored carbohydrates in sheaths and culms.
Verbatim
t0“Culture Improvement of Lowland Rice”
e6“The more amount of nitrogen was absorbed by the plant during the period from the neck-node initiation stage to the late spikelet initiation stage, the more amount of dry matter was produced in the period, but the less amount of stored carbohydrates was found in sheaths and culms at the late spikelet initiation stage or at the heading stage”
Claim · model-written summary
Dry weight increase from late spikelet initiation to heading was positively correlated with nitrogen absorbed and with whole-plant nitrogen at heading.
- Taxon
- Lowland Ricet0
- Organ / stage
- from the late spikelet initiation stage to the heading stagee7
- Treatment
- the amount of nitrogen absorbed in the periode7
- Outcome
- dry weight increased during the periode7
- Direction
- positively correlatede7
- Qualifier
- the amount of nitrogen in the whole plant at the heading stagee7
Verbatim
t0“Culture Improvement of Lowland Rice”
e7“The dry weight increased during the period from the late spikelet initiation stage to the heading stage was positively correlated with the amount of nitrogen absorbed in the period as well as the amount of nitrogen in the whole plant at the heading stage”
Claim · model-written summary
Stored carbohydrates at heading were not connected with nitrogen absorbed from late spikelet initiation to heading.
Verbatim
t0“Culture Improvement of Lowland Rice”
e6“The amount of stored carbohydrates at the heading stage had no connection with the amount of nitrogen absorbed during the period from the late spikelet initiation stage to the heading stage”
Claim · model-written summary
With equal nitrogen absorbed by late spikelet initiation, stored carbohydrates at heading increased progressively with nitrogen absorbed in the period.
Verbatim
t0“Culture Improvement of Lowland Rice”
e5“in case of an equal amount of nitrogen being absorbed by the plants by the time of late spikelet initiation, the amount of stored carbohydrates in sheaths and culms at the heading stage was progressively increased with increasing amount of nitrogen absorbed in the period”
Claim · model-written summary
Dry matter increase from late spikelet initiation to heading was negatively correlated with the number of degenerated rachis-branches.
Verbatim
t0“Culture Improvement of Lowland Rice”
e4“A negative correlation was found between the dry matter increased during the period from the late spikelet initiation stage to the heading stage and the number of degenerated rachis-blanches”