Abstract
Sandy culture was conducted to investigate the effect of localized nitrogen supply on rice root, such as root tips, root length, root surface area and allocation of carbon and nitrogen in rice for studying the adaptation of rice to nitrogen supply. Localized nitrogen supply had a significant effect on rice root morphology, plant biomass as well as partition of carbon and nitrogen in plant. Lateral root length, root surface area, root volume and root biomass were induced in section supplied nitrogen fertilizer, whereas root diameter decreased by localized supply of nitrogen no matter how much nitrogen used. The content of carbohydrate in nitrogen-supplied section is higher than that in nitrogen-deprived section. With the increase of nitrogen supply, the content of carbohydrate decreased. The possible mechanism which supplying nitrate to partial roots could induce the growth of rice root on the nitrogen-supplied section is that nitrogen may induce transport and allocation of carbohydrate from shoots to roots on the section supplied nitrate nitrogen.
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Claims 5
Claim · model-written summary
Localized nitrogen supply induced lateral root length, root surface area, root volume and root biomass in the nitrogen supplied section.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- roote0
- Treatment
- nitrogen fertilizere0
- Outcome
- Lateral root length, root surface area, root volumee0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lateral root length, root surface area, root volume and root biomass were induced in section supplied nitrogen fertilizer”
t0“rice”
Claim · model-written summary
Localized nitrogen supply decreased root diameter regardless of the amount of nitrogen.
- Taxon
- riceOryza sativat0
- Treatment
- localized supply of nitrogene0
- Outcome
- root diametere0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root diameter decreased by localized supply of nitrogen no matter how much nitrogen used”
t0“rice”
Claim · model-written summary
Carbohydrate content was higher in the nitrogen supplied section than the nitrogen deprived section.
- Taxon
- riceOryza sativat0
- Treatment
- nitrogen-supplied sectione0
- Outcome
- content of carbohydratee0
- Direction
- highere0
- Comparator
- nitrogen-deprived sectione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of carbohydrate in nitrogen-supplied section is higher than that in nitrogen-deprived section.”
t0“rice”
Claim · model-written summary
Carbohydrate content decreased as nitrogen supply increased.
- Taxon
- riceOryza sativat0
- Treatment
- nitrogen supplye0
- Outcome
- content of carbohydratee0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of nitrogen supply, the content of carbohydrate decreased.”
t0“rice”
Claim · model-written summary
The authors proposed that nitrogen induced carbohydrate transport and allocation from shoots to nitrate supplied roots.
- Taxon
- riceOryza sativat0
- Organ / stage
- rootse0
- Treatment
- nitrate nitrogene0
- Outcome
- transport and allocation of carbohydrate from shoots to rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen may induce transport and allocation of carbohydrate from shoots to roots on the section supplied nitrate nitrogen.”
t0“rice”
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See all 759 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.