Abstract
Climate change in the form of drought will reduce agricultural production, so it is necessary to develop superior drought-tolerant varieties. The study aimed to determine the drought-tolerant local upland rice cultivars at the germination stage. From September to December 2021, the study was carried out at the Seed Science and Technology Laboratory, Faculty of Agriculture, Tadulako University, Palu, Center Sulawesi, Indonesia. A completely random design (CRD) with a two-factor factorial pattern was employed in the study. Twelve cultivars comprised the first factor, while two superior drought-resistant variants served as comparators. The second factor is osmotic stress, namely P0 = control, P1 = -1 bar, P2 = -2 bar, and P3 = -3 bar, so there are 56 treatment combinations repeated four times, so there are 224 experimental units. The observed variables were maximum growth potential, germination rate, radicle length, plumule length, radicle dry weight, plumule dry weight, sprout dry weight, water volume, and germination rate. The results showed that drought stress through PEG – 1 bar did not affect germination. Using PEG down to -3 bar resulted in a significant reduction in germination. Pulut ko, logi and sina ponding are cultivars that have tolerance to drought stress.
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Claims 5
Claim · model-written summary
PEG at −1 bar did not affect upland rice germination.
- Taxon
- Upland Rice
Oryza sativat0 - Treatment
- PEG – 1 bare0
- Outcome
- germinatione0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress through PEG – 1 bar did not affect germination.”
t0“Upland Rice”
Claim · model-written summary
PEG down to −3 bar significantly reduced upland rice germination.
- Taxon
- Upland RiceOryza sativat0
- Treatment
- PEG down to -3 bare0
- Outcome
- germinatione0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using PEG down to -3 bar resulted in a significant reduction in germination.”
t0“Upland Rice”
Claim · model-written summary
Pulut ko was tolerant of drought stress.
- Taxon
- Upland RiceOryza sativat0
- Material
- Pulut koe0
- Outcome
- tolerance to drought stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pulut ko, logi and sina ponding are cultivars that have tolerance to drought stress.”
t0“Upland Rice”
Claim · model-written summary
logi was tolerant of drought stress.
- Taxon
- Upland RiceOryza sativat0
- Material
- logie0
- Outcome
- tolerance to drought stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pulut ko, logi and sina ponding are cultivars that have tolerance to drought stress.”
t0“Upland Rice”
Claim · model-written summary
sina ponding was tolerant of drought stress.
- Taxon
- Upland RiceOryza sativat0
- Material
- sina pondinge0
- Outcome
- tolerance to drought stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pulut ko, logi and sina ponding are cultivars that have tolerance to drought stress.”
t0“Upland Rice”
The same questions in other papers
drought · growth · Oryza sativa (rice)Positive and negative results
183 papers in the same direction as this paper · 98 in the opposite direction
- negative
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See all 282 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.