Abstract
Quinoa has been identified as a climate-resilient crop that can overcome unfavorable conditions. This study explores the photochemical efficiency of quinoa compared to maize subjected to drought stress. The JIP-test was used to assess the photochemical efficiency of both crops. Proline content, leaf water potential, and membrane leakage were also determined. The maximum photochemical efficiency (Fv/Fm) did not change for quinoa and maize under moderate stress. However, severe drought conditions resulted in a decline in Fv/Fm in maize but not quinoa. Furthermore, the PSII performance index (PIABS,total) declined steadily in maize soon after the onset of drought stress. The decline in the PIABS,total values for quinoa was only observed after a period of severe drought stress. Membrane leakage was also more prevalent in the maize plants, while quinoa had higher proline contents. This study concluded that both quinoa and maize maintained PSII structure and function under moderate drought conditions. However, only quinoa maintained PSII structure and function under severe drought conditions.
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Claims 9
Claim · model-written summary
Fv/Fm of quinoa did not change under moderate drought stress.
- Taxon
- quinoa
Chenopodium quinoae0 - Treatment
- moderate stresse0
- Outcome
- maximum photochemical efficiency (Fv/Fm)e0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum photochemical efficiency (Fv/Fm) did not change for quinoa and maize under moderate stress”
Claim · model-written summary
Fv/Fm of maize did not change under moderate drought stress.
- Treatment
- moderate stresse0
- Outcome
- maximum photochemical efficiency (Fv/Fm)e0
- Direction
- did not changee0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum photochemical efficiency (Fv/Fm) did not change for quinoa and maize under moderate stress”
Claim · model-written summary
Severe drought declined Fv/Fm in maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“severe drought conditions resulted in a decline in Fv/Fm in maize but not quinoa”
Claim · model-written summary
Severe drought did not decline Fv/Fm in quinoa.
- Taxon
- quinoaChenopodium quinoae0
- Treatment
- severe drought conditionse0
- Outcome
- Fv/Fme0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“severe drought conditions resulted in a decline in Fv/Fm in maize but not quinoa”
Claim · model-written summary
The PSII performance index PIABS,total of maize declined steadily soon after drought onset.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PSII performance index (PIABS,total) declined steadily in maize soon after the onset of drought stress”
Claim · model-written summary
The PIABS,total of quinoa declined only after a period of severe drought stress.
- Taxon
- quinoaChenopodium quinoae0
- Treatment
- severe drought stresse0
- Outcome
- PIABS,total valuese0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decline in the PIABS,total values for quinoa was only observed after a period of severe drought stress”
Claim · model-written summary
Membrane leakage was more prevalent in maize plants than in quinoa.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Membrane leakage was also more prevalent in the maize plants”
Claim · model-written summary
Quinoa had higher proline contents than maize.
- Taxon
- quinoaChenopodium quinoae0
- Outcome
- proline contentse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quinoa had higher proline contents”
Claim · model-written summary
The authors conclude that only quinoa, not maize, maintained PSII structure and function under severe drought.
- Taxon
- quinoaChenopodium quinoae0
- Treatment
- severe drought conditionse0
- Outcome
- maintained PSII structure and functione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only quinoa maintained PSII structure and function under severe drought conditions”
The same questions in other papers
drought · physiology: photosynthesis · Zea mays (maize)Positive and negative results
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- negative
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- negative
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See all 6 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.