Abstract
With increasing population, degrading soil health, limited arable land area, and high cost of nitrogen (N) fertilizers, improving nitrogen use efficiency (NUE) of potato is an inevitable approach to save the environment and achieve sufficient tuber yields with less N fertilizer supply. Recently, we have developed an aeroponics system to study NUE in potato using genomics, physiology, and breeding approaches. This study aims on precision phenotyping of plants of two distinct potato varieties (Kufri Gaurav, N efficient; Kufri Jyoti, N inefficient) in the novel aeroponics system. Plants were grown in aeroponics under controlled conditions with low N (0.75 mmol L−1 NO3−) and high N (7.5 mmol L−1 NO3−) levels. Plant biomass, root traits, total chlorophyll content, and plant N were increased with increasing N supply, whereas higher NUE parameters namely NUE, agronomic NUE (AgNUE), N uptake efficiency (NUpE), harvest index (HI), and N harvest index (NHI) were observed at low N. An NUE efficient cv. Kufri Gaurav showed higher tuber dry weight, fresh tuber yield, tuber number per plant, early start of tuber harvesting, root traits, stolon traits, NUE parameters, and higher amino acid (aspartic acid and asparagine) content at low N supply. Higher expression of nitrate reductase (NR), nitrite reductase (NIR), and asparagine synthetase (AS) genes was observed in the leaf tissues of Kufri Gaurav at high N. Thus, aeroponics-based precision phenotyping enables identification of NUE efficient genotypes based on key traits and genes involved in improving NUE in potato. Further, this study suggests that the potential of aeroponics can be utilized to investigate N biology in potato under different N regimes.
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Claims 14
Claim · model-written summary
Increasing N raised plant biomass and root traits.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- increasing N supplye0
- Outcome
- Plant biomass, root traitse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant biomass, root traits, total chlorophyll content, and plant N were increased with increasing N supply”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
Increasing N raised chlorophyll content and plant N.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- increasing N supplye0
- Outcome
- total chlorophyll content, and plant Ne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant biomass, root traits, total chlorophyll content, and plant N were increased with increasing N supply”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
Low N produced higher NUE, agronomic NUE, and N uptake efficiency.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- low Ne0
- Outcome
- NUE, agronomic NUE (AgNUE), N uptake efficiency (NUpE)e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher NUE parameters namely NUE, agronomic NUE (AgNUE), N uptake efficiency (NUpE), harvest index (HI), and N harvest index (NHI) were observed at low N”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
Low N produced higher harvest index and N harvest index.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- low Ne0
- Outcome
- harvest index (HI), and N harvest index (NHI)e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher NUE parameters namely NUE, agronomic NUE (AgNUE), N uptake efficiency (NUpE), harvest index (HI), and N harvest index (NHI) were observed at low N”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
Kufri Gaurav showed higher tuber dry weight, fresh tuber yield, tuber number per plant at low N.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Kufri Gaurave0
- Treatment
- low N supplye0
- Outcome
- tuber dry weight, fresh tuber yield, tuber number per plante0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An NUE efficient cv. Kufri Gaurav showed higher tuber dry weight, fresh tuber yield, tuber number per plant, early start of tuber harvesting, root traits, stolon traits, NUE parameters, and higher amino acid (aspartic acid and asparagine) content at low N supply.”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
Kufri Gaurav showed higher early start of tuber harvesting at low N.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Kufri Gaurave0
- Treatment
- low N supplye0
- Outcome
- early start of tuber harvestinge0
- Direction
- earlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An NUE efficient cv. Kufri Gaurav showed higher tuber dry weight, fresh tuber yield, tuber number per plant, early start of tuber harvesting, root traits, stolon traits, NUE parameters, and higher amino acid (aspartic acid and asparagine) content at low N supply.”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
Kufri Gaurav showed higher root traits, stolon traits at low N.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Kufri Gaurave0
- Treatment
- low N supplye0
- Outcome
- root traits, stolon traitse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An NUE efficient cv. Kufri Gaurav showed higher tuber dry weight, fresh tuber yield, tuber number per plant, early start of tuber harvesting, root traits, stolon traits, NUE parameters, and higher amino acid (aspartic acid and asparagine) content at low N supply.”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
Kufri Gaurav showed higher NUE parameters at low N.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Kufri Gaurave0
- Treatment
- low N supplye0
- Outcome
- NUE parameterse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An NUE efficient cv. Kufri Gaurav showed higher tuber dry weight, fresh tuber yield, tuber number per plant, early start of tuber harvesting, root traits, stolon traits, NUE parameters, and higher amino acid (aspartic acid and asparagine) content at low N supply.”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
Kufri Gaurav showed higher amino acid (aspartic acid and asparagine) content at low N.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Kufri Gaurave0
- Treatment
- low N supplye0
- Outcome
- amino acid (aspartic acid and asparagine) contente0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An NUE efficient cv. Kufri Gaurav showed higher tuber dry weight, fresh tuber yield, tuber number per plant, early start of tuber harvesting, root traits, stolon traits, NUE parameters, and higher amino acid (aspartic acid and asparagine) content at low N supply.”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
nitrate reductase (NR) expression was higher in Kufri Gaurav leaves at high N.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Kufri Gaurave0
- Organ / stage
- leaf tissuese0
- Treatment
- high Ne0
- Gene
- nitrate reductase (NR)e0
- Outcome
- expressione0
- Direction
- Highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher expression of nitrate reductase (NR), nitrite reductase (NIR), and asparagine synthetase (AS) genes was observed in the leaf tissues of Kufri Gaurav at high N.”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
nitrite reductase (NIR) expression was higher in Kufri Gaurav leaves at high N.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Kufri Gaurave0
- Organ / stage
- leaf tissuese0
- Treatment
- high Ne0
- Gene
- nitrite reductase (NIR)e0
- Outcome
- expressione0
- Direction
- Highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher expression of nitrate reductase (NR), nitrite reductase (NIR), and asparagine synthetase (AS) genes was observed in the leaf tissues of Kufri Gaurav at high N.”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
asparagine synthetase (AS) expression was higher in Kufri Gaurav leaves at high N.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Kufri Gaurave0
- Organ / stage
- leaf tissuese0
- Treatment
- high Ne0
- Gene
- asparagine synthetase (AS)e0
- Outcome
- expressione0
- Direction
- Highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher expression of nitrate reductase (NR), nitrite reductase (NIR), and asparagine synthetase (AS) genes was observed in the leaf tissues of Kufri Gaurav at high N.”
t0“potato (Solanum tuberosum L.)”
Claim · model-written summary
Aeroponics phenotyping enabled identification of NUE-efficient potato genotypes.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- identification of NUE efficient genotypese0
- Qualifier
- based on key traits and genese0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“aeroponics-based precision phenotyping enables identification of NUE efficient genotypes based on key traits and genes involved in improving NUE in potato”
Claim · model-written summary
The authors suggest using aeroponics to investigate potato N biology under different N regimes.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- investigate N biology in potatoe0
- Qualifier
- under different N regimese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the potential of aeroponics can be utilized to investigate N biology in potato under different N regimes”
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