Abstract
This study assessed the effects of climate change on Thai soybeans under simulation situations. Our study is focused on temperature variability and effects on growth, yield, and genetic changes in 2 generations of Chiang Mai 60 cultivars. In the experiment, soybeans were exposed to 3 levels of air temperature for 8 h day-1 in an open top chamber for 2 cropping periods. Air temperature levels in each treatment were controlled at 30-33°C (± 2.3) for LT-treatment, 33-36°C ( ± 2.4) for AT-treatment, and 36-40 °C ( ± 3.2) for HT-treatment, respectively. Positive effects of high temperature became obvious at the maturing stage when yield significantly increased in both cropping periods. Results in growth indicated that shoot length at the pre-maturing stage (V3-R3) was more positively affected by high temperature than at the maturing stage. However, the positive effect on growth under high temperature was not found in the 2nd cropping period. Finally, genetic changes were examined in phenotype characteristics by the AFLPs technique. The results showed that the high temperature factor clearly caused genetic change in the soybeans and showed more alteration in the 2nd cropping period.
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Claims 5
Claim · model-written summary
High temperature significantly increased yield at maturity in both cropping periods.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- high temperaturee0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- both cropping periodse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“Positive effects of high temperature became obvious at the maturing stage when yield significantly increased in both cropping periods.”
Claim · model-written summary
High temperature benefited shoot length more at pre-maturity than maturity.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- pre-maturing stage (V3-R3)e0
- Treatment
- high temperaturee0
- Outcome
- shoot lengthe0
- Direction
- more positively affectede0
- Comparator
- the maturing stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“shoot length at the pre-maturing stage (V3-R3) was more positively affected by high temperature than at the maturing stage”
Claim · model-written summary
The positive growth effect of high temperature was absent in the second cropping period.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- high temperaturee0
- Outcome
- positive effect on growthe0
- Direction
- not founde0
- Qualifier
- 2nd cropping periode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“the positive effect on growth under high temperature was not found in the 2nd cropping period”
Claim · model-written summary
High temperature caused AFLP-detected genetic change in soybean.
- Taxon
- soybeansGlycine maxe0
- Treatment
- high temperaturee0
- Outcome
- genetic changee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the high temperature factor clearly caused genetic change in the soybeans”
Claim · model-written summary
Genetic alteration under high temperature was greater in the second cropping period.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- alteratione0
- Direction
- moree0
- Qualifier
- 2nd cropping periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“showed more alteration in the 2nd cropping period”
The same questions in other papers
heat · yield · Glycine max (soybean)Results differ
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9 papers in the same direction as this paper · 32 in the opposite direction
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See all 42 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.