Abstract
Abstract Drought is a major factor limiting food production worldwide, especially in the current climate change era. As such, strategies to mitigate drought stress in vegetables, such as radish, are paramount to ensure food security. Among these, the use of signaling molecules, such as the NO donor sodium nitroprusside (SNP), are promising. Thus, we aimed to evaluate the effects of SNP in the mitigation of drought stress and in the root quality of radish. For this, plants were grown under three irrigation regimes: irrigation with 80% WRC (well-watered), one week without irrigation (from 14 to 21 days after sowing (DAS)) with subsequent re-watering with 80% WRC (re-watered), and irrigation restriction from 21 to 28 DAS, without re-irrigation (drought). Plants were then sprayed with 100 µM SNP or water (control), and growth, physiological, and biochemical characteristics were evaluated. Irrigation was the main factor affecting radish growth and quality, with drought strongly decreasing carbon assimilation rate and plant growth, and re-watering not reversing these effects. SNP, in turn, did not affect radish growth, but improved storage root quality by increasing the content of total sugars and vitamin C. SNP was not able to mitigate drought stress effects in photosynthetic capacity and biomass production of radish; however, it improved stress recovery upon re-watering, increasing root dry mass and decreasing electrolyte leakage. Overall, this study provides novel evidence that preharvest SNP application improves radish root quality and stress recovery in a condition-dependent manner, highlighting its potential to enhance crop quality under water-limited conditions.
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Claims 10
Claim · model-written summary
Drought strongly decreased radish carbon assimilation.
- Taxon
- radish
Raphanus sativuse1 - Treatment
- droughte0
- Outcome
- carbon assimilation ratee0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought strongly decreasing carbon assimilation rate and plant growth”
e1“root quality of radish”
Claim · model-written summary
Drought strongly decreased radish plant growth.
- Taxon
- radishRaphanus sativuse1
- Treatment
- droughte0
- Outcome
- plant growthe0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought strongly decreasing carbon assimilation rate and plant growth”
e1“root quality of radish”
Claim · model-written summary
Rewatering did not reverse the drought reductions.
- Taxon
- radishRaphanus sativuse2
- Treatment
- re-wateringe0
- Outcome
- carbon assimilation rate and plant growthe1
- Direction
- not reversinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“re-watering not reversing these effects”
e1“drought strongly decreasing carbon assimilation rate and plant growth”
e2“root quality of radish”
Claim · model-written summary
SNP did not affect radish growth.
- Taxon
- radishRaphanus sativuse0
- Treatment
- SNPe0
- Outcome
- radish growthe0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SNP, in turn, did not affect radish growth”
Claim · model-written summary
SNP increased total sugars in radish storage roots.
- Taxon
- radishRaphanus sativuse0
- Organ / stage
- storage roote0
- Treatment
- SNPe0
- Outcome
- content of total sugarse0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SNP, in turn, did not affect radish growth, but improved storage root quality by increasing the content of total sugars and vitamin C”
Claim · model-written summary
SNP increased vitamin C in radish storage roots.
- Taxon
- radishRaphanus sativuse0
- Organ / stage
- storage roote0
- Treatment
- SNPe0
- Outcome
- vitamin Ce0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SNP, in turn, did not affect radish growth, but improved storage root quality by increasing the content of total sugars and vitamin C”
Claim · model-written summary
SNP did not mitigate drought effects on photosynthetic capacity.
- Taxon
- radishRaphanus sativuse0
- Treatment
- SNPe0
- Outcome
- photosynthetic capacitye0
- Direction
- not able to mitigatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SNP was not able to mitigate drought stress effects in photosynthetic capacity and biomass production of radish”
Claim · model-written summary
SNP did not mitigate drought effects on biomass production.
- Taxon
- radishRaphanus sativuse0
- Treatment
- SNPe0
- Outcome
- biomass productione0
- Direction
- not able to mitigatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SNP was not able to mitigate drought stress effects in photosynthetic capacity and biomass production of radish”
Claim · model-written summary
During recovery after rewatering, SNP increased radish root dry mass.
- Taxon
- radishRaphanus sativuse1
- Treatment
- SNPe1
- Outcome
- root dry masse0
- Direction
- increasinge0
- Qualifier
- upon re-wateringe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it improved stress recovery upon re-watering, increasing root dry mass and decreasing electrolyte leakage”
e1“SNP was not able to mitigate drought stress effects in photosynthetic capacity and biomass production of radish”
Claim · model-written summary
During recovery after rewatering, SNP decreased radish electrolyte leakage.
- Taxon
- radishRaphanus sativuse1
- Treatment
- SNPe1
- Outcome
- electrolyte leakagee0
- Direction
- decreasinge0
- Qualifier
- upon re-wateringe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it improved stress recovery upon re-watering, increasing root dry mass and decreasing electrolyte leakage”
e1“SNP was not able to mitigate drought stress effects in photosynthetic capacity and biomass production of radish”
The same questions in other papers
sodium nitroprusside · growth · Raphanus sativus (radish)Results differ
3 papers in the same direction as this paper
- positive
- positive
- positive
drought · physiology: photosynthesis · Raphanus sativus (radish)Positive and negative results
1 in the opposite direction
- positive
drought · growth · Raphanus sativus (radish)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- negative
- positive
- positive
3 papers more in this group
See all 7 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.