Abstract
The lack of water availability led scientists to breed short duration rice varieties despite their lower yield potential than the long duration rice varieties to ensure sustainability in lowland rice fields. It is not yet clear whether this reduction in yield is due to the reduced crop duration and/or is associated with the reduction in biomass and nutrient accumulation rates. Field experiments were conducted at low-fertile and fertile sites using 22 rice varieties differing in their duration (short, medium, and long), and yield potential (low and high). Straw and grain dry weights (DW), nitrogen (N), phosphorus (P), and potassium (K) concentrations were measured. For rice varieties grown in the low-fertility site, straw and grain DWs, biomass accumulation rate (g plant−1 day−1), and N, P, and K accumulation rates (mg plant−1 day−1) were reduced by 63, 61, 56, 44, 79, and 43%, respectively, than those observed in the fertile site. At the low-fertile site, short duration rice varieties had only 64% straw and 76% grain DWs, 67% biomass accumulation rate, and 87% N, 82% P, and 64% K accumulation rates than those observed in medium and long duration rice varieties. The differences were less pronounced at the fertile site. Reduced biomass, N, P, and K accumulation rates, apart from the reduced crop duration, hindered grain yield and thereby the sustainability of short duration rice varieties, particularly at low-fertile sites. Thus, rice breeding programs for low-fertile soils and short duration varieties should specifically be designed.
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 15
Claim · model-written summary
Low fertility reduced rice straw dry weight by 63% relative to the fertile site.
- Taxon
- rice varieties
Oryza sativae0 - Treatment
- low-fertility sitee0
- Outcome
- strawe0
- Direction
- reducede0
- Value
- 63e0
- Comparator
- fertile sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For rice varieties grown in the low-fertility site, straw and grain DWs, biomass accumulation rate (g plant−1 day−1), and N, P, and K accumulation rates (mg plant−1 day−1) were reduced by 63, 61, 56, 44, 79, and 43%, respectively, than those observed in the fertile site.”
Claim · model-written summary
Low fertility reduced rice grain dry weight by 61%.
- Taxon
- rice varietiesOryza sativae0
- Treatment
- low-fertility sitee0
- Outcome
- grain DWse0
- Direction
- reducede0
- Value
- 61e0
- Comparator
- fertile sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For rice varieties grown in the low-fertility site, straw and grain DWs, biomass accumulation rate (g plant−1 day−1), and N, P, and K accumulation rates (mg plant−1 day−1) were reduced by 63, 61, 56, 44, 79, and 43%, respectively, than those observed in the fertile site.”
Claim · model-written summary
Low fertility reduced rice biomass accumulation rate by 56%.
- Taxon
- rice varietiesOryza sativae0
- Treatment
- low-fertility sitee0
- Outcome
- biomass accumulation ratee0
- Direction
- reducede0
- Value
- 56e0
- Comparator
- fertile sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For rice varieties grown in the low-fertility site, straw and grain DWs, biomass accumulation rate (g plant−1 day−1), and N, P, and K accumulation rates (mg plant−1 day−1) were reduced by 63, 61, 56, 44, 79, and 43%, respectively, than those observed in the fertile site.”
Claim · model-written summary
Low fertility reduced rice nitrogen accumulation rate by 44%.
- Taxon
- rice varietiesOryza sativae0
- Treatment
- low-fertility sitee0
- Outcome
- N, P, and K accumulation ratese0
- Direction
- reducede0
- Value
- 44e0
- Comparator
- fertile sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For rice varieties grown in the low-fertility site, straw and grain DWs, biomass accumulation rate (g plant−1 day−1), and N, P, and K accumulation rates (mg plant−1 day−1) were reduced by 63, 61, 56, 44, 79, and 43%, respectively, than those observed in the fertile site.”
Claim · model-written summary
Low fertility reduced rice phosphorus accumulation rate by 79%.
- Taxon
- rice varietiesOryza sativae0
- Treatment
- low-fertility sitee0
- Outcome
- N, P, and K accumulation ratese0
- Direction
- reducede0
- Value
- 79e0
- Comparator
- fertile sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For rice varieties grown in the low-fertility site, straw and grain DWs, biomass accumulation rate (g plant−1 day−1), and N, P, and K accumulation rates (mg plant−1 day−1) were reduced by 63, 61, 56, 44, 79, and 43%, respectively, than those observed in the fertile site.”
Claim · model-written summary
Low fertility reduced rice potassium accumulation rate by 43%.
- Taxon
- rice varietiesOryza sativae0
- Treatment
- low-fertility sitee0
- Outcome
- N, P, and K accumulation ratese0
- Direction
- reducede0
- Value
- 43%e0
- Comparator
- fertile sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For rice varieties grown in the low-fertility site, straw and grain DWs, biomass accumulation rate (g plant−1 day−1), and N, P, and K accumulation rates (mg plant−1 day−1) were reduced by 63, 61, 56, 44, 79, and 43%, respectively, than those observed in the fertile site.”
Claim · model-written summary
At low fertility, short duration rice varieties had 64% of the straw dry weight of medium and long duration varieties.
- Taxon
- rice varietiesOryza sativae0
- Material
- short duration rice varietiese0
- Outcome
- strawe0
- Direction
- onlye0
- Value
- 64%e0
- Comparator
- medium and long duration rice varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the low-fertile site, short duration rice varieties had only 64% straw and 76% grain DWs, 67% biomass accumulation rate, and 87% N, 82% P, and 64% K accumulation rates than those observed in medium and long duration rice varieties.”
Claim · model-written summary
At low fertility, short duration rice had 76% of the grain dry weight of medium and long duration varieties.
- Taxon
- rice varietiesOryza sativae0
- Material
- short duration rice varietiese0
- Outcome
- grain DWse0
- Direction
- onlye0
- Value
- 76%e0
- Comparator
- medium and long duration rice varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the low-fertile site, short duration rice varieties had only 64% straw and 76% grain DWs, 67% biomass accumulation rate, and 87% N, 82% P, and 64% K accumulation rates than those observed in medium and long duration rice varieties.”
Claim · model-written summary
At low fertility, short duration rice had 67% of the biomass accumulation rate of longer duration varieties.
- Taxon
- rice varietiesOryza sativae0
- Material
- short duration rice varietiese0
- Outcome
- biomass accumulation ratee0
- Direction
- onlye0
- Value
- 67%e0
- Comparator
- medium and long duration rice varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the low-fertile site, short duration rice varieties had only 64% straw and 76% grain DWs, 67% biomass accumulation rate, and 87% N, 82% P, and 64% K accumulation rates than those observed in medium and long duration rice varieties.”
Claim · model-written summary
At low fertility, short duration rice had 87% of the nitrogen accumulation rate of longer duration varieties.
- Taxon
- rice varietiesOryza sativae0
- Material
- short duration rice varietiese0
- Outcome
- N, 82% P, and 64% K accumulation ratese0
- Direction
- onlye0
- Value
- 87%e0
- Comparator
- medium and long duration rice varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the low-fertile site, short duration rice varieties had only 64% straw and 76% grain DWs, 67% biomass accumulation rate, and 87% N, 82% P, and 64% K accumulation rates than those observed in medium and long duration rice varieties.”
Claim · model-written summary
At low fertility, short duration rice had 82% of the phosphorus accumulation rate of longer duration varieties.
- Taxon
- rice varietiesOryza sativae0
- Material
- short duration rice varietiese0
- Outcome
- Pe0
- Direction
- onlye0
- Value
- 82%e0
- Comparator
- medium and long duration rice varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the low-fertile site, short duration rice varieties had only 64% straw and 76% grain DWs, 67% biomass accumulation rate, and 87% N, 82% P, and 64% K accumulation rates than those observed in medium and long duration rice varieties.”
Claim · model-written summary
At low fertility, short duration rice had 64% of the potassium accumulation rate of longer duration varieties.
- Taxon
- rice varietiesOryza sativae0
- Material
- short duration rice varietiese0
- Outcome
- K accumulation ratese0
- Direction
- onlye0
- Value
- 64%e0
- Comparator
- medium and long duration rice varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the low-fertile site, short duration rice varieties had only 64% straw and 76% grain DWs, 67% biomass accumulation rate, and 87% N, 82% P, and 64% K accumulation rates than those observed in medium and long duration rice varieties.”
Claim · model-written summary
Duration group differences were less pronounced at the fertile site.
- Taxon
- rice cultivarsOryza sativat0
- Outcome
- differences were less pronouncede0
- Setting
- fertile sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The differences were less pronounced at the fertile site.”
t0“rice cultivars”
Claim · model-written summary
Reduced biomass and nutrient accumulation rates, along with shorter duration, hindered grain yield of short duration varieties.
- Taxon
- rice varietiesOryza sativae0
- Outcome
- grain yielde0
- Qualifier
- Reduced biomass, N, P, and K accumulation ratese0
- Setting
- low-fertile sitese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced biomass, N, P, and K accumulation rates, apart from the reduced crop duration, hindered grain yield and thereby the sustainability of short duration rice varieties, particularly at low-fertile sites.”
Claim · model-written summary
The authors recommend specifically designing rice breeding programs for low fertility and short duration.
- Taxon
- riceOryza sativae0
- Outcome
- rice breeding programs for low-fertile soils and short duration varieties should specifically be designede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thus, rice breeding programs for low-fertile soils and short duration varieties should specifically be designed.”
The same questions in other papers
climate site · growth · Oryza sativa (rice)Positive and negative results
6 papers in the same direction as this paper · 23 in the opposite direction
- positive
- positive
- positive
26 papers more in this group
See all 30 papers →climate site · nutrient: content · Oryza sativa (rice)Positive and negative results
6 papers in the same direction as this paper · 26 in the opposite direction
- positive
- positive
- positive
29 papers more in this group
See all 33 papers →climate site · yield · Oryza sativa (rice)Positive and negative results
61 papers in the same direction as this paper · 110 in the opposite direction
- positive
- positive
- positive
168 papers more in this group
See all 172 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.