Abstract
Utilizing the potential of local rice is a promising venture in the development of superior drought -resistant rice. One of the local rice that comes from Lampung is the Lumbung Sewu Cantik variety. The purpose of this study was to evaluate the physiological resistance response of Lampung local rice shoots varieties Lumbung Sewu Cantik to the drought stress caused by PEG 6000 through relative water content and peroxidase enzyme activity. This study was conducted using factorial randomized design with 2 factors. Factor 1 is rice varieties (INPAGO 8 (K +), IR 64 (K-), and Lumbung Sewu Cantik). Factor 2 was the concentration of PEG 6000 (0% and 20%). Each treatment combination was repeated 3 times. Data were analyzed for variance and further analysis used DMRT test. The results showed that the drought stress did not have a significant effect on the relative water content of the rice shoots, but had a significant effect on the increase of peroxidase enzyme activity from the rice shoots. The results showed an increase in relative water content (2%) in rice shoots of Lumbung Sewu Cantik variety after being stressed by drought, while both controls experienced a decrease in relative water content. Shoots rice of Lumbung Sewu Cantik variety also experienced the highest increase in peroxidase enzyme activity (0.215 (U / mg)/min) when compared to the two controls. Furthermore, the results of DMRT test at 5% level showed that the activity of peroxidase enzyme activity from rice shoots of Lumbung Sewu Cantik variety was not much different from K- but significantly different from K+. Based on the test results of relative water content and peroxidase enzyme activity, it can be concluded that Lampung local rice, Lumbung Sewu Cantik variety, shows drought tolerance in germination phase and potential to develop into superior drought resistant rice varieties.
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Claims 9
Claim · model-written summary
Drought stress had no significant effect on rice shoot relative water content.
- Taxon
- rice
Oryza sativae0 - Treatment
- drought stresse0
- Outcome
- relative water content of the rice shootse0
- Direction
- did not have a significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress did not have a significant effect on the relative water content of the rice shoots”
Claim · model-written summary
Drought stress significantly increased rice shoot peroxidase activity.
- Taxon
- riceOryza sativae0
- Treatment
- drought stresse0
- Outcome
- peroxidase enzyme activity from the rice shootse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress did not have a significant effect on the relative water content of the rice shoots, but had a significant effect on the increase of peroxidase enzyme activity from the rice shoots”
Claim · model-written summary
Lumbung Sewu Cantik shoot relative water content increased by 2% after drought stress.
- Taxon
- riceOryza sativae0
- Material
- Lumbung Sewu Cantike0
- Treatment
- stressed by droughte0
- Outcome
- relative water contente0
- Direction
- increasee0
- Value
- 2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase in relative water content (2%) in rice shoots of Lumbung Sewu Cantik variety after being stressed by drought”
Claim · model-written summary
Both control varieties decreased in shoot relative water content under drought stress.
- Taxon
- riceOryza sativat0
- Material
- both controlse0
- Treatment
- Polyethylene Glycol 6000t0
- Outcome
- relative water contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while both controls experienced a decrease in relative water content”
t0“Rice in the Germination Phase Induced by Polyethylene Glycol 6000”
Claim · model-written summary
Lumbung Sewu Cantik shoots had the highest peroxidase activity increase, 0.215 (U / mg)/min, compared with controls.
- Taxon
- riceOryza sativae0
- Material
- Lumbung Sewu Cantike0
- Treatment
- Polyethylene Glycol 6000t0
- Outcome
- peroxidase enzyme activitye0
- Direction
- highest increasee0
- Value
- 0.215 (U / mg)/mine0
- Comparator
- the two controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoots rice of Lumbung Sewu Cantik variety also experienced the highest increase in peroxidase enzyme activity (0.215 (U / mg)/min) when compared to the two controls”
t0“Rice in the Germination Phase Induced by Polyethylene Glycol 6000”
Claim · model-written summary
Lumbung Sewu Cantik peroxidase activity did not differ much from K-.
- Taxon
- riceOryza sativae0
- Material
- Lumbung Sewu Cantike0
- Outcome
- peroxidase enzyme activitye0
- Direction
- not much differente0
- Comparator
- K-e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peroxidase enzyme activity from rice shoots of Lumbung Sewu Cantik variety was not much different from K- but significantly different from K+”
Claim · model-written summary
Lumbung Sewu Cantik peroxidase activity differed significantly from K+.
- Taxon
- riceOryza sativae0
- Material
- Lumbung Sewu Cantike0
- Outcome
- peroxidase enzyme activitye0
- Direction
- significantly differente0
- Comparator
- K+e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peroxidase enzyme activity from rice shoots of Lumbung Sewu Cantik variety was not much different from K- but significantly different from K+”
Claim · model-written summary
The authors conclude Lumbung Sewu Cantik is drought tolerant during germination.
- Taxon
- riceOryza sativat0
- Material
- Lumbung Sewu Cantike0
- Organ / stage
- germination phasee0
- Outcome
- drought tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lumbung Sewu Cantik variety, shows drought tolerance in germination phase”
t0“Rice”
Claim · model-written summary
The authors suggest Lumbung Sewu Cantik has potential for superior drought resistant variety development.
- Taxon
- riceOryza sativae0
- Material
- Lumbung Sewu Cantike0
- Outcome
- develop into superior drought resistant rice varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lampung local rice, Lumbung Sewu Cantik variety, shows drought tolerance in germination phase and potential to develop into superior drought resistant rice varieties”
t0“Rice in the Germination Phase Induced by Polyethylene Glycol 6000”
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