Abstract
Rice cv. IR5 was grown in pots in waterlogged soil with varying levels of K, Na, Mg, Ca, NH4, NO3, Cl, PO4 and SO4. Where NO3 but no NH4 was supplied, denitrification resulted in N shortage and restricted N uptake. With NH4, uptake of N was determined by plant growth and capacity to incorporate N. When KNO3 was replaced by NH4Cl, plant growth was less than where (NH4)2SO4 was the replacement salt; this was related to the greater accumulation of Cl ions in the tissues and a consequent marked fall in carboxylates to a very low level indicative of nutritional stress. (Abstract retrieved from CAB Abstracts by CABI’s permission)
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Claims 4
Claim · model-written summary
Where nitrate but no ammonium was supplied, denitrification caused N shortage and restricted N uptake in rice.
- Taxon
- Rice
Oryza sativae0 - Material
- IR5e0
- Treatment
- NO3 but no NH4 was suppliede1
- Outcome
- N uptakee1
- Direction
- restrictede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice cv. IR5 was grown in pots in waterlogged soil”
e1“Where NO3 but no NH4 was supplied, denitrification resulted in N shortage and restricted N uptake”
Claim · model-written summary
With ammonium supply, N uptake in rice was determined by plant growth and the capacity to incorporate N.
- Taxon
- RiceOryza sativae0
- Treatment
- NH4e1
- Outcome
- uptake of Ne1
- Qualifier
- determined by plant growth and capacity to incorporate Ne1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice cv. IR5 was grown in pots in waterlogged soil”
e1“With NH4, uptake of N was determined by plant growth and capacity to incorporate N”
Claim · model-written summary
Rice growth was less when KNO3 was replaced by NH4Cl than when (NH4)2SO4 was the replacement salt.
- Taxon
- RiceOryza sativae0
- Treatment
- KNO3 was replaced by NH4Cle1
- Outcome
- plant growthe1
- Direction
- lesse1
- Comparator
- (NH4)2SO4 was the replacement salte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice cv. IR5 was grown in pots in waterlogged soil”
e1“When KNO3 was replaced by NH4Cl, plant growth was less than where (NH4)2SO4 was the replacement salt”
Claim · model-written summary
The reduced growth with NH4Cl was related to greater accumulation of Cl ions in the tissues and a consequent marked fall in carboxylates to a very low level indicative of nutritional stress.
- Taxon
- RiceOryza sativae0
- Compound
- Cl ionse1
- Outcome
- fall in carboxylatese1
- Qualifier
- greater accumulation of Cl ions in the tissuese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice cv. IR5 was grown in pots in waterlogged soil”
e1“this was related to the greater accumulation of Cl ions in the tissues and a consequent marked fall in carboxylates to a very low level indicative of nutritional stress”
The same questions in other papers
ammonium chloride · growth · Oryza sativa (rice)Positive and negative results
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- positive
- negative
- no effect
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5 papers in the same direction as this paper · 21 in the opposite direction
- positive
- positive
- positive
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See all 27 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.