Abstract
Abstract Breeding for potato deep roots can increase water and nitrogen uptake by potatoes and it can be an option to maintain stable yields with decreased inputs. This study investigates the relationship between potato root characteristics, water stress resistance and deep soil nitrogen uptake, accessing variations among cultivars and nitrogen fertilization levels. Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark. Root growth was monitored via minirhizotron tubes down to 1.8 m soil depth. Drought treatment started in the mid-June and deep soil nitrogen uptake was tracked via 15 N isotope application at 1.3–1.4 m soil depth during tuber formation. Water stress resilience was identified using 13 C natural discrimination process in plants. Tuber samples were analyzed for 15 N and 13 C content. While drought affected potato yield (not always significantly), it did not affect nitrogen uptake. Root length and distribution varied among varieties, with deeper roots (down to 1.30 m) observed in August. Statistical differences ( p < 0.05) in root length, yield and nitrogen uptake were found among varieties. Cultivars with longer growing season exhibited larger, deeper roots and increased nitrogen uptake from deep soil. High correlation (R = 0.8) between deep roots and 15 N uptake was observed for all varieties. Deeper roots are contributing to deep soil nitrogen uptake, but 13 C content in tubers is not a reliable indicator of water stress resilience. Despite this, the study suggests the potential for breeding potatoes with deep roots to achieve stable yields, considering differences in water and nitrogen uptake among varieties.
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Claims 11
Claim · model-written summary
Drought did not affect nitrogen uptake by potato.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- droughte1
- Outcome
- nitrogen uptakee1
- Direction
- did not affecte1
- Setting
- semi-field root phenotyping platform in Denmarke0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark”
e1“While drought affected potato yield (not always significantly), it did not affect nitrogen uptake”
Claim · model-written summary
Drought affected potato yield, not always significantly.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- droughte1
- Outcome
- potato yielde1
- Direction
- affectede1
- Qualifier
- not always significantlye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark”
e1“While drought affected potato yield (not always significantly), it did not affect nitrogen uptake”
Claim · model-written summary
Root length and distribution varied among potato varieties.
- Taxon
- potatoSolanum tuberosume0
- Material
- varietiese2
- Outcome
- Root length and distributione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark”
e2“Root length and distribution varied among varieties, with deeper roots (down to 1.30 m) observed in August”
Claim · model-written summary
Deeper roots down to 1.30 m were observed in August.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- deeper rootse2
- Value
- 1.30 me2
- Qualifier
- observed in Auguste2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark”
e2“Root length and distribution varied among varieties, with deeper roots (down to 1.30 m) observed in August”
Claim · model-written summary
Root length, yield and nitrogen uptake differed significantly among potato varieties.
- Taxon
- potatoSolanum tuberosume0
- Material
- varietiese3
- Outcome
- root length, yield and nitrogen uptakee3
- Value
- p < 0.05e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark”
e3“Statistical differences ( p < 0.05) in root length, yield and nitrogen uptake were found among varieties”
Claim · model-written summary
Cultivars with a longer growing season had larger, deeper roots.
- Taxon
- potatoSolanum tuberosume0
- Material
- Cultivars with longer growing seasone4
- Outcome
- larger, deeper rootse4
- Direction
- largere4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark”
e4“Cultivars with longer growing season exhibited larger, deeper roots and increased nitrogen uptake from deep soil”
Claim · model-written summary
Cultivars with a longer growing season showed increased nitrogen uptake from deep soil.
- Taxon
- potatoSolanum tuberosume0
- Material
- Cultivars with longer growing seasone4
- Outcome
- nitrogen uptake from deep soile4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark”
e4“Cultivars with longer growing season exhibited larger, deeper roots and increased nitrogen uptake from deep soil”
Claim · model-written summary
Deep roots and 15N uptake were highly correlated (R = 0.8) across varieties.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- deep rootse5
- Outcome
- 15 N uptakee5
- Value
- R = 0.8e5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark”
e5“High correlation (R = 0.8) between deep roots and 15 N uptake was observed for all varieties”
Claim · model-written summary
Deeper roots appear to contribute to deep soil nitrogen uptake.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- Deeper rootse6
- Outcome
- deep soil nitrogen uptakee6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark”
e6“Deeper roots are contributing to deep soil nitrogen uptake, but 13 C content in tubers is not a reliable indicator of water stress resilience”
Claim · model-written summary
13C content in tubers is not a reliable indicator of water stress resilience.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- 13 C content in tuberse6
- Qualifier
- not a reliable indicator of water stress resiliencee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirteen potato cultivars were grown during 2018 and 2020 at a semi-field root phenotyping platform in Denmark”
e6“Deeper roots are contributing to deep soil nitrogen uptake, but 13 C content in tubers is not a reliable indicator of water stress resilience”
Claim · model-written summary
Breeding potatoes with deep roots has potential to achieve stable yields.
- Taxon
- potatoesSolanum tuberosume7
- Outcome
- stable yieldse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“the study suggests the potential for breeding potatoes with deep roots to achieve stable yields”
The same questions in other papers
drought · nutrient: content · Solanum tuberosum (potato)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.