Abstract
Non-destructive high-throughput phenotyping based on phenomics is an emerging technology for assessing the genetic diversity of various traits and screening in breeding programmes. In this study, non-destructive measurements of leaf temperature and chlorophyll fluorescence were conducted to investigate the physiological responses of soybean ( Glycine max ) to salt stress so as to set up a non-destructive screening method. Two-week-old seedlings of soybean in the V2 stage were treated with 0, 12.5, 25, 50 and 100 mM NaCl to induce salt stress. Three parameters, photosynthesis rate, stomatal conductance and chlorophyll fluorescence, decreased significantly, while soybean leaf temperature increased by exhibiting a positive correlation with NaCl concentration ( P < 0.001). Soybean leaf temperature increased significantly at 50 mM NaCl when compared with the untreated control, although no visual symptom was observed. We selected leaf temperature as a major physiological parameter of salt stress as its measurement is much easier, faster and cheaper than that of other physiological parameters. Therefore, leaf temperature can be used for evaluating the responses to salt stress in soybean as a non-destructive and phenomic parameter. The results of this study suggest that non-destructive parameters such as chlorophyll fluorescence and leaf temperature are useful tools for assessing the genetic diversity of soybean with regard to salt stress tolerance and to screen salt stress-tolerant soybean for breeding.
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Claims 6
Claim · model-written summary
Photosynthesis rate, stomatal conductance and chlorophyll fluorescence of soybean decreased significantly under NaCl treatments.
- Taxon
- soybean
Glycine maxt0 - Treatment
- 0, 12.5, 25, 50 and 100 mM NaCle1
- Outcome
- photosynthesis rate, stomatal conductance and chlorophyll fluorescencee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max)”
e0“Three parameters, photosynthesis rate, stomatal conductance and chlorophyll fluorescence, decreased significantly”
e1“0, 12.5, 25, 50 and 100 mM NaCl”
Claim · model-written summary
Soybean leaf temperature increased with NaCl concentration, showing a positive correlation (P < 0.001).
- Taxon
- soybeanGlycine maxe0
- Treatment
- NaCl concentratione0
- Outcome
- leaf temperaturee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean leaf temperature increased by exhibiting a positive correlation with NaCl concentration ( P < 0.001)”
Claim · model-written summary
Soybean leaf temperature increased significantly at 50 mM NaCl compared with the untreated control, although no visual symptom was observed.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- 50 mM NaCle0
- Outcome
- leaf temperaturee0
- Direction
- increasede0
- Qualifier
- no visual symptom was observede0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean leaf temperature increased significantly at 50 mM NaCl when compared with the untreated control, although no visual symptom was observed”
Claim · model-written summary
Leaf temperature was chosen as the major physiological parameter of salt stress because its measurement is much easier, faster and cheaper than that of other physiological parameters.
- Taxon
- soybeanGlycine maxt0
- Outcome
- measuremente0
- Direction
- easiere0
- Comparator
- other physiological parameterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max)”
e0“its measurement is much easier, faster and cheaper than that of other physiological parameters”
Claim · model-written summary
The authors conclude that leaf temperature can be used to evaluate responses to salt stress in soybean as a non-destructive phenomic parameter.
- Taxon
- soybeanGlycine maxe0
- Outcome
- evaluating the responses to salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf temperature can be used for evaluating the responses to salt stress in soybean as a non-destructive and phenomic parameter”
Claim · model-written summary
The authors suggest that chlorophyll fluorescence and leaf temperature are useful tools for assessing genetic diversity of soybean in salt tolerance and for screening salt-tolerant soybean for breeding.
- Taxon
- soybeanGlycine maxe0
- Outcome
- assessing the genetic diversity of soybean with regard to salt stress tolerance and to screen salt stress-tolerant soybeane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“non-destructive parameters such as chlorophyll fluorescence and leaf temperature are useful tools for assessing the genetic diversity of soybean with regard to salt stress tolerance and to screen salt stress-tolerant soybean for breeding”
The same questions in other papers
sodium chloride · physiology: photosynthesis · Glycine max (soybean)Positive and negative results
9 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 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.