Abstract
The objective of this study was to identify rice cultivars with high emergence ability under low soil-moisture conditions using a large number of rice cultivars, and to clarify the differences between the rates of emergence in lowland and upland, white- and red-kerneled, and non-glutinous and glutinous cultivars. First, 30 cultivars with a high emergence rate at 14 days after sowing (DAS) were selected at a soil water potential of -1.17 to -0.89 MPa from 382 cultivars through fourscreening experiments. In these experiments, the emergence rate was significantly higher in the upland cultivars than in the lowland cultivars. The red-kerneled cultivars also had a significantly higher emergence rate than the white-kerneled cultivars. However, no difference in emergence rate was observed between the non-glutinous and glutinous cultivars. Second, the emergence rates of various cultivars were examined at a soil water potential of -1.62, -1.23, and -1.07 MPa. The higher the soil water potential, the higher the emergence rate at 28 DAS and the shorter the time to the emergence. The order of cultivars in their emergence rate at 13 DAS at -1.07 MPa was similar to that at 28 DAS at -1.62 MPa. Therefore, the dataat 13 DAS at -1.07 MPa were used to compare the selected 30 cultivars for their emergence ability under low soil-moisture conditions. Moulla Topa showed the highest emergence rate (78.1%) and Gaiya Rate Bhasunamathe the shortest time to 50% emergence (11.1 d) under these conditions.
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Claims 9
Claim · model-written summary
Thirty cultivars had high emergence at 14 days under low soil moisture.
- Taxon
- Rice
Oryza sativat0 - Outcome
- emergence ratee0
- Value
- 30 cultivarse0
- Qualifier
- -1.17 to -0.89 MPae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“30 cultivars with a high emergence rate at 14 days after sowing (DAS) were selected at a soil water potential of -1.17 to -0.89 MPa from 382 cultivars”
t0“Rice Cultivars”
Claim · model-written summary
Upland cultivars emerged more than lowland cultivars.
- Taxon
- RiceOryza sativat0
- Material
- upland cultivarse0
- Outcome
- emergence ratee0
- Direction
- highere0
- Comparator
- lowland cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“emergence rate was significantly higher in the upland cultivars than in the lowland cultivars”
t0“Rice Cultivars”
Claim · model-written summary
Red-kerneled cultivars emerged more than white-kerneled cultivars.
- Taxon
- RiceOryza sativat0
- Material
- red-kerneled cultivarse0
- Outcome
- emergence ratee0
- Direction
- highere0
- Comparator
- white-kerneled cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“red-kerneled cultivars also had a significantly higher emergence rate than the white-kerneled cultivars”
t0“Rice Cultivars”
Claim · model-written summary
Emergence did not differ between non-glutinous and glutinous cultivars.
- Taxon
- RiceOryza sativat0
- Material
- non-glutinouse0
- Outcome
- emergence ratee0
- Direction
- no differencee0
- Comparator
- glutinous cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no difference in emergence rate was observed between the non-glutinous and glutinous cultivars”
t0“Rice Cultivars”
Claim · model-written summary
Higher soil water potential increased emergence at 28 days.
- Taxon
- RiceOryza sativat0
- Treatment
- soil water potentiale0
- Outcome
- emergence rate at 28 DASe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher the soil water potential, the higher the emergence rate at 28 DAS”
t0“Rice Cultivars”
Claim · model-written summary
Higher soil water potential shortened emergence time.
- Taxon
- RiceOryza sativat0
- Treatment
- soil water potentiale0
- Outcome
- time to the emergencee0
- Direction
- shortere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher the soil water potential, the higher the emergence rate at 28 DAS and the shorter the time to the emergence”
t0“Rice Cultivars”
Claim · model-written summary
Cultivar rankings at 13 days and -1.07 MPa resembled those at 28 days and -1.62 MPa.
- Taxon
- RiceOryza sativat0
- Outcome
- order of cultivars in their emergence ratee0
- Qualifier
- 13 DAS at -1.07 MPae0
- Comparator
- 28 DAS at -1.62 MPae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The order of cultivars in their emergence rate at 13 DAS at -1.07 MPa was similar to that at 28 DAS at -1.62 MPa”
t0“Rice Cultivars”
Claim · model-written summary
Moulla Topa had the highest emergence rate, 78.1%.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moulla Topa showed the highest emergence rate (78.1%)”
t0“Rice Cultivars”
Claim · model-written summary
Gaiya Rate Bhasunamathe had the shortest time to 50% emergence, 11.1 days.
- Taxon
- RiceOryza sativat0
- Material
- Gaiya Rate Bhasunamathee0
- Outcome
- time to 50% emergencee0
- Direction
- shorteste0
- Value
- 11.1 de0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gaiya Rate Bhasunamathe the shortest time to 50% emergence (11.1 d)”
t0“Rice Cultivars”
The same questions in other papers
soil water · growth · Oryza sativa (rice)Positive and negative results
20 papers in the same direction as this paper · 18 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
36 papers more in this group
See all 40 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.