Abstract
Drought affects crop developmentnand growth. To explore the physiological effects of drought stress on soybean, HeiNong44 (HN44) and HeiNong65 (HN65) varieties were used as experimental materials and PEG-6000 was used as the osmotic medium. The antioxidant enzyme activity, osmotic adjustment substance content, antioxidant capacity, and endogenous hormone content of the two soybean varieties were studied under different drought degrees and different treatment durations. Drought stress caused significant physiological changes in soybean. The antioxidant enzyme activities, osmoregulation substance content, and total antioxidant capacity (T-AOC) of HN65 and HN44 showed an increasing trend under mild and moderate drought, however, they first increased and then decreased under severe drought conditions. Following the extension of treatment time, malondialdehyde (MDA) showed an increasing trend. As drought increased, gibberellin (GA) content showed a decreasing trend, while abscisic acid (ABA), salicylic acid (SA), and zeatin nucleoside (ZA) content showed an increasing trend. The auxin (IAA) content of the two varieties showed opposite change trends. In short, drought had a significant impact on the physiology of these two soybean varieties; however, overall, the drought resistance of HN65 was lower than that of HN44. This study provides a research theoretical basis for addressing the drought resistance mechanism and the breeding of drought resistant soybean varieties.
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Claims 7
Claim · model-written summary
Antioxidant enzymes, osmotic substances and total antioxidant capacity increased under mild and moderate drought in both varieties.
- Taxon
- Soybean
Glycine maxt0 - Material
- HN65 and HN44e0
- Treatment
- mild and moderate droughte0
- Outcome
- antioxidant enzyme activities, osmoregulation substance content, and total antioxidant capacity (T-AOC)e0
- Direction
- increasing trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The antioxidant enzyme activities, osmoregulation substance content, and total antioxidant capacity (T-AOC) of HN65 and HN44 showed an increasing trend under mild and moderate drought”
t0“Soybean”
Claim · model-written summary
These three physiological measures first increased and then decreased under severe drought.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- severe drought conditionse0
- Outcome
- theye0
- Direction
- first increased and then decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“they first increased and then decreased under severe drought conditions.”
t0“Soybean”
Claim · model-written summary
Malondialdehyde increased as treatment time extended.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- extension of treatment timee0
- Outcome
- malondialdehyde (MDA)e0
- Direction
- increasing trende0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Following the extension of treatment time, malondialdehyde (MDA) showed an increasing trend.”
t0“Soybean”
Claim · model-written summary
Gibberellin content decreased as drought intensified.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- droughte0
- Outcome
- gibberellin (GA) contente0
- Direction
- decreasing trende0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As drought increased, gibberellin (GA) content showed a decreasing trend”
t0“Soybean”
Claim · model-written summary
Abscisic acid, salicylic acid and zeatin nucleoside content increased with drought.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- droughte1
- Outcome
- abscisic acid (ABA), salicylic acid (SA), and zeatin nucleoside (ZA) contente0
- Direction
- increasing trende0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abscisic acid (ABA), salicylic acid (SA), and zeatin nucleoside (ZA) content showed an increasing trend.”
e1“As drought increased,”
t0“Soybean”
Claim · model-written summary
Auxin content changed in opposite directions in the two varieties.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- auxin (IAA) contente0
- Direction
- opposite change trendse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The auxin (IAA) content of the two varieties showed opposite change trends.”
t0“Soybean”
Claim · model-written summary
HN65 had lower overall drought resistance than HN44.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overall, the drought resistance of HN65 was lower than that of HN44.”
t0“Soybean”
The same questions in other papers
drought · quality: phytochemicals · Glycine max (soybean)Positive and negative results
5 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- no effect
5 papers more in this group
See all 9 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.