Abstract
With japonica rice varieties of Akihikari Liaojing 5 as materials, effects of different levels of nitrogen treatment on japonica rice roots were studied under pot-culture conditions. The results showed that there was not obvious difference among the number, max-length, volume, dry weight and activity of roots with different levels of nitrogen treatment at early stage; during the jointing stage, high level of nitrogen contributed to root growth and increased its activity; heading stage was a key stage to root systems, from then on, the root grew slowly and its activity decreased to a great extent, but changes happened more slowly under high nitrogen condition. This might proved that high nitrogen is positive to maintain root activity and postpone root senescence.
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Claims 4
Claim · model-written summary
At early stage, different nitrogen levels showed no obvious difference in root number, max length, volume, dry weight and activity of japonica rice.
- Taxon
- japonica rice
_by_Augustus_Binu.jpg?width=60)
Oryza sativa Japonica Groupe0 - Material
- Akihikari Liaojing 5e0
- Organ / stage
- rootse2
- Treatment
- different levels of nitrogen treatmente2
- Outcome
- number, max-length, volume, dry weight and activity of rootse2
- Direction
- no_changeinferrede2
- Qualifier
- at early stagee2
- Setting
- pot-culture conditionse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_by_Augustus_Binu.jpg?width=500)
Verbatim
e0“With japonica rice varieties of Akihikari Liaojing 5 as materials”
e1“effects of different levels of nitrogen treatment on japonica rice roots were studied under pot-culture conditions”
e2“there was not obvious difference among the number, max-length, volume, dry weight and activity of roots with different levels of nitrogen treatment at early stage”
Claim · model-written summary
During the jointing stage, high nitrogen contributed to root growth.
- Taxon
- japonica riceOryza sativa Japonica Groupe0
- Treatment
- high level of nitrogene3
- Outcome
- root growthe3
- Direction
- contributed toe3
- Qualifier
- during the jointing stagee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With japonica rice varieties of Akihikari Liaojing 5 as materials”
e3“during the jointing stage, high level of nitrogen contributed to root growth and increased its activity”
Claim · model-written summary
During the jointing stage, high nitrogen increased root activity of japonica rice.
- Taxon
- japonica riceOryza sativa Japonica Groupe0
- Treatment
- high level of nitrogene3
- Outcome
- its activitye3
- Direction
- increasede3
- Qualifier
- during the jointing stagee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With japonica rice varieties of Akihikari Liaojing 5 as materials”
e3“during the jointing stage, high level of nitrogen contributed to root growth and increased its activity”
Claim · model-written summary
After the heading stage, root activity of japonica rice decreased more slowly under high nitrogen.
- Taxon
- japonica riceOryza sativa Japonica Groupe0
- Organ / stage
- heading stagee4
- Treatment
- high nitrogen conditione4
- Outcome
- its activitye4
- Direction
- more slowlye4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With japonica rice varieties of Akihikari Liaojing 5 as materials”
e4“heading stage was a key stage to root systems, from then on, the root grew slowly and its activity decreased to a great extent, but changes happened more slowly under high nitrogen condition”
The same questions in other papers
nitrogen · growth · Oryza sativa (rice)Positive and negative results
401 papers in the same direction as this paper · 101 in the opposite direction · 8 reporting no difference from an alternative
- negative
- negative
- negative
507 papers more in this group
See all 511 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.