Abstract
Abstract Deficiency in phosphorus (P) can severely limit rice yields. Developing cultivars with tolerance to P deficiency may represent a more sustainable solution than sole reliance on fertilizer application. To assess genotypic variation for tolerance to P deficiency the P uptake of 30 genotypes was measured on P‐deficient soil. Variation for P uptake was high, ranging from 0.6 to 12.9 mg P/plant. Traditional varieties were superior to modern varieties. A major quantitative trait locus for P uptake had previously been identified in a population developed by crossing the modern variety ‘Nipponbare’ with the P deficiency‐tolerant landrace ‘Kasalath’. This quantitative trait locus was transferred to ‘Nipponbare’ by three backcrosses. Under P deficiency this improved line surpassed ‘Nipponbare’ in P uptake by 170% and in grain yield by 250%. These results show that the genotypic variation for tolerance to P deficiency in rice can be used successfully in rice improvement. By combining high P uptake of the donor variety ‘Kasalath’ with a high harvest‐index characteristic of modern varieties it was possible to more than triple the grain yield of ‘Nipponbare’ under P deficiency.
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 5
Claim · model-written summary
P uptake varied across 30 rice genotypes from 0.6 to 12.9 mg P/plant.
- Taxon
- rice
Oryza sativat0 - Outcome
- P uptakee0
- Direction
- highe0
- Value
- 0.6 to 12.9 mg P/plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Variation for P uptake was high, ranging from 0.6 to 12.9 mg P/plant”
t0“in rice and the potential”
Claim · model-written summary
Traditional rice varieties exceeded modern varieties in P uptake.
- Taxon
- riceOryza sativat0
- Material
- Traditional varietiese0
- Outcome
- superior to modern varietiese0
- Direction
- superiore0
- Comparator
- modern varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Traditional varieties were superior to modern varieties”
t0“in rice and the potential”
Claim · model-written summary
A major QTL for P uptake was identified in a Nipponbare × Kasalath population.
- Taxon
- riceOryza sativat0
- Material
- ‘Nipponbare’e0
- Gene
- quantitative trait locus for P uptakee0
- Outcome
- identifiede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A major quantitative trait locus for P uptake had previously been identified in a population developed by crossing the modern variety ‘Nipponbare’ with the P deficiency‐tolerant landrace ‘Kasalath’”
t0“in rice and the potential”
Claim · model-written summary
The transferred QTL line exceeded Nipponbare in P uptake by 170% under P deficiency.
- Taxon
- riceOryza sativat0
- Material
- this improved linee0
- Treatment
- P deficiencye0
- Outcome
- P uptakee0
- Direction
- surpassede0
- Value
- 170%e0
- Comparator
- ‘Nipponbare’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under P deficiency this improved line surpassed ‘Nipponbare’ in P uptake by 170%”
t0“in rice and the potential”
Claim · model-written summary
The improved line exceeded Nipponbare in grain yield by 250% under P deficiency.
- Taxon
- riceOryza sativat0
- Material
- this improved linee0
- Treatment
- P deficiencye0
- Outcome
- grain yielde0
- Direction
- surpassede0
- Value
- 250%e0
- Comparator
- ‘Nipponbare’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under P deficiency this improved line surpassed ‘Nipponbare’ in P uptake by 170% and in grain yield by 250%”
t0“in rice and the potential”
The same questions in other papers
phosphorus · nutrient: content · Oryza sativa (rice)Positive and negative results
25 papers in the same direction as this paper · 142 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- negative
- positive
164 papers more in this group
See all 168 papers →phosphorus · yield · Oryza sativa (rice)Positive and negative results
55 papers in the same direction as this paper · 419 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
471 papers more in this group
See all 475 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.