Abstract
The objective of this paper is to characterize drought-adaptation, and to identify indicators of drought-tolerance in potato in the Andean Highlands. Six genotypes, representing a range of contrasting morphological and agronomic characters and belonging to three species, were grown in containers. The treatments were R0 (irrigated control), R1 (progressive drought after tuberisation, with a recovery period) and R2 (as R1, but no recovery irrigation). Genotypes differed in plant height, leaf area index (LAI), proportion of ground covered by green foliage and root expansion. Drought did not significantly affect stem number, and slightly decreased plant height and leaf number. It reduced leaf area index and canopy cover in all genotypes. Dry matter production was greatly affected in cultivars Ajahuiri and Luky, but very little in the other genotypes. Under drought, Alpha and CIP 382171.10 gave the highest yields and Luky the lowest. Depending on genotype and degree of yield reduction, yield losses were associated with a decrease either in radiation intercepted, the efficiency of its conversion into dry matter, or harvest index. Harvest index and root biomass correlated well with tuber yield. Other parameters, such as leaf number, plant height and canopy cover, correlated with tuber yield only in the R2 treatment.
Abstract from the paper’s OpenAlex record; open copy licensed other-oa. 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 12
Claim · model-written summary
Six potato genotypes differed in plant height and leaf area index.
- Taxon
- potato
Solanum tuberosumt0 - Outcome
- plant height, leaf area index (LAI)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e1“Genotypes differed in plant height, leaf area index (LAI), proportion of ground covered by green foliage and root expansion”
Claim · model-written summary
Potato genotypes differed in the proportion of ground covered by green foliage and in root expansion.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- proportion of ground covered by green foliage and root expansione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e1“Genotypes differed in plant height, leaf area index (LAI), proportion of ground covered by green foliage and root expansion”
Claim · model-written summary
Drought did not significantly affect stem number relative to the irrigated control.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Droughte2
- Outcome
- stem numbere2
- Direction
- did not significantly affecte2
- Comparator
- irrigated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e0“The treatments were R0 (irrigated control), R1 (progressive drought after tuberisation, with a recovery period) and R2 (as R1, but no recovery irrigation)”
e2“Drought did not significantly affect stem number, and slightly decreased plant height and leaf number”
Claim · model-written summary
Drought slightly decreased plant height and leaf number relative to the irrigated control.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Droughte2
- Outcome
- plant height and leaf numbere2
- Direction
- slightly decreasede2
- Comparator
- irrigated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e0“The treatments were R0 (irrigated control), R1 (progressive drought after tuberisation, with a recovery period) and R2 (as R1, but no recovery irrigation)”
e2“Drought did not significantly affect stem number, and slightly decreased plant height and leaf number”
Claim · model-written summary
Drought reduced leaf area index and canopy cover in all genotypes relative to the irrigated control.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Droughte2
- Outcome
- leaf area index and canopy covere3
- Direction
- reducede3
- Qualifier
- in all genotypese3
- Comparator
- irrigated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e0“The treatments were R0 (irrigated control), R1 (progressive drought after tuberisation, with a recovery period) and R2 (as R1, but no recovery irrigation)”
e2“Drought did not significantly affect stem number, and slightly decreased plant height and leaf number”
e3“It reduced leaf area index and canopy cover in all genotypes”
Claim · model-written summary
Drought greatly affected dry matter production in the cultivars Ajahuiri and Luky.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Ajahuiri and Lukye4
- Treatment
- droughte0
- Outcome
- dry matter productione4
- Direction
- greatly affectede4
- Comparator
- irrigated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e0“The treatments were R0 (irrigated control), R1 (progressive drought after tuberisation, with a recovery period) and R2 (as R1, but no recovery irrigation)”
e4“Dry matter production was greatly affected in cultivars Ajahuiri and Luky, but very little in the other genotypes”
Claim · model-written summary
Drought affected dry matter production very little in the other genotypes.
- Taxon
- potatoSolanum tuberosumt0
- Material
- other genotypese4
- Treatment
- droughte0
- Outcome
- dry matter productione4
- Direction
- very littlee4
- Comparator
- irrigated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e0“The treatments were R0 (irrigated control), R1 (progressive drought after tuberisation, with a recovery period) and R2 (as R1, but no recovery irrigation)”
e4“Dry matter production was greatly affected in cultivars Ajahuiri and Luky, but very little in the other genotypes”
Claim · model-written summary
Under drought, Alpha and CIP 382171.10 gave the highest yields.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Alpha and CIP 382171.10e5
- Treatment
- Under droughte5
- Outcome
- yieldse5
- Direction
- higheste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e5“Under drought, Alpha and CIP 382171.10 gave the highest yields and Luky the lowest”
Claim · model-written summary
Under drought, Luky gave the lowest yields.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Lukye5
- Treatment
- Under droughte5
- Outcome
- yieldse5
- Direction
- loweste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e5“Under drought, Alpha and CIP 382171.10 gave the highest yields and Luky the lowest”
Claim · model-written summary
Yield losses under drought were associated with decreases in radiation interception, conversion efficiency or harvest index, depending on genotype.
- Taxon
- potatoSolanum tuberosumt0
- Material
- genotypee6
- Outcome
- yield lossese6
- Direction
- a decreasee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e6“Depending on genotype and degree of yield reduction, yield losses were associated with a decrease either in radiation intercepted, the efficiency of its conversion into dry matter, or harvest index”
Claim · model-written summary
Harvest index and root biomass were correlated with tuber yield.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- roote7
- Outcome
- tuber yielde7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e7“Harvest index and root biomass correlated well with tuber yield”
Claim · model-written summary
Leaf number, plant height and canopy cover correlated with tuber yield only in the R2 treatment.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- R2 treatmente7
- Outcome
- tuber yielde7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of water shortage on six potato genotypes”
e7“Other parameters, such as leaf number, plant height and canopy cover, correlated with tuber yield only in the R2 treatment”
The same questions in other papers
drought · growth · Solanum tuberosum (potato)Results differ
30 papers in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- positive
35 papers more in this group
See all 39 papers →drought · yield · Solanum tuberosum (potato)Results differ
36 papers in the same direction as this paper · 10 in the opposite direction
- negative
- no effect
- positive
43 papers more in this group
See all 47 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.