Abstract
Seedling emergence and .stand establishment in dry-seeded rice is unstable at present due to deep seeding, low temperature at seeding time, excessive drought or raining etc. This experiment was conducted to elucidate the effect of gibberellic acid(GA) on the seedling emergence and growth in dry-seeded rice. GA, IBA and Metalaxyl were treated by seed-soaking or-spray. Hwaseongbyeo, a japonica rice, was used. The seed-soaking treatment with GA significantly increased the seedling emergence and plant height as compared with untreated seed. However, no difference was observed in IBA and Metalaxyl treatment. The optimum concentration of GA to promote the seedling emergence and growth in dry-seeded rice was about 100ppm for seed-soaking and about 200ppm for seed-spray treatment. The seed-spray treatment of GA with 200ppm promoted earlier and faster seedling emergence and elongated seedling height as compared with untreated seed.
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Claims 5
Claim · model-written summary
Seed-soaking with GA significantly increased seedling emergence and plant height of dry-seeded rice compared with untreated seed.
Verbatim
e0“Seedling emergence and .stand establishment in dry-seeded rice is unstable at present”
e1“The seed-soaking treatment with GA significantly increased the seedling emergence and plant height as compared with untreated seed”
e5“Hwaseongbyeo, a japonica rice, was used”
Claim · model-written summary
IBA and metalaxyl seed treatments showed no difference in seedling emergence and growth of dry-seeded rice.
- Taxon
- dry-seeded ricee0
- Treatment
- IBA and Metalaxyl treatmente2
- Outcome
- seedling emergence and growthe3
- Direction
- no differencee2
Not reportedComparator
Verbatim
e0“Seedling emergence and .stand establishment in dry-seeded rice is unstable at present”
e2“However, no difference was observed in IBA and Metalaxyl treatment”
e3“The optimum concentration of GA to promote the seedling emergence and growth in dry-seeded rice was about 100ppm for seed-soaking and about 200ppm for seed-spray treatment”
Claim · model-written summary
About 100 ppm GA was the optimum concentration for promoting seedling emergence and growth of dry-seeded rice with seed-soaking.
- Taxon
- dry-seeded ricee0
- Treatment
- GAe3
- Outcome
- seedling emergence and growthe3
- Direction
- promotee3
- Value
- about 100ppme3
Not reportedComparator
Verbatim
e0“Seedling emergence and .stand establishment in dry-seeded rice is unstable at present”
e3“The optimum concentration of GA to promote the seedling emergence and growth in dry-seeded rice was about 100ppm for seed-soaking and about 200ppm for seed-spray treatment”
Claim · model-written summary
About 200 ppm GA was the optimum concentration for promoting seedling emergence and growth of dry-seeded rice with seed-spray.
- Taxon
- dry-seeded ricee0
- Treatment
- GAe3
- Outcome
- seedling emergence and growthe3
- Direction
- promotee3
- Value
- about 200ppme3
Not reportedComparator
Verbatim
e0“Seedling emergence and .stand establishment in dry-seeded rice is unstable at present”
e3“The optimum concentration of GA to promote the seedling emergence and growth in dry-seeded rice was about 100ppm for seed-soaking and about 200ppm for seed-spray treatment”
Claim · model-written summary
GA at 200 ppm applied as seed-spray promoted earlier and faster seedling emergence and elongated seedling height compared with untreated seed.
Verbatim
e0“Seedling emergence and .stand establishment in dry-seeded rice is unstable at present”
e4“The seed-spray treatment of GA with 200ppm promoted earlier and faster seedling emergence and elongated seedling height as compared with untreated seed”
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