Abstract
Rice has been shown to respond positively to Si fertilizer in terms of growth and productivity. The objective of this study was to evaluate the effect of a series of Si application rates on grain yield, Si concentration, and the expression of the OsLsi6 gene among three Thai rice varieties. The varieties CNT1, PTT1, and KDML105 were grown in a pot experiment under six levels of Si (0, 100, 150, 200, 250, and 300 kg Si/ha). Grain yield was the highest at 300 kg Si/ha, being increased by 35%, 53%, and 69% in CNT1, PTT1, and KDML105, respectively, compared with the plants grown without added Si. For Si concentrations in rice plants, rising Si fertilizer application up to 150 kg/ha significantly increased the Si concentration in straw, flag leaf, and husk in all varieties. The Si concentration in all tissues was higher under high Si (300 kg Si/ha). Applying Si fertilizer also increased the expression level of OsLsi6 in both CNT1 and PTT1 varieties. The highest expression level of OsLsi6 was associated with 300 kg Si/ha, being increased by 548% in CNT1 and 326% in PTT1 compared with untreated plants. These results indicate that Si application is an effective way to improve rice yield as well as Si concentration, and that the effect is related to the higher expression of the OsLsi6 gene.
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Claims 10
Claim · model-written summary
Grain yield of rice variety CNT1 was highest at 300 kg Si/ha, increased by 35% compared with plants without added Si.
- Taxon
- Rice
Oryza sativat0 - Material
- CNT1e0
- Treatment
- 300 kg Si/hae0
- Outcome
- Grain yielde0
- Direction
- increasede0
- Value
- 35%e0
- Comparator
- plants grown without added Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield was the highest at 300 kg Si/ha, being increased by 35%, 53%, and 69% in CNT1, PTT1, and KDML105, respectively, compared with the plants grown without added Si”
t0“Rice”
Claim · model-written summary
Grain yield of rice variety PTT1 was highest at 300 kg Si/ha, increased by 53% compared with plants without added Si.
- Taxon
- RiceOryza sativat0
- Material
- PTT1e0
- Treatment
- 300 kg Si/hae0
- Outcome
- Grain yielde0
- Direction
- increasede0
- Value
- 53%e0
- Comparator
- plants grown without added Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield was the highest at 300 kg Si/ha, being increased by 35%, 53%, and 69% in CNT1, PTT1, and KDML105, respectively, compared with the plants grown without added Si”
t0“Rice”
Claim · model-written summary
Grain yield of rice variety KDML105 was highest at 300 kg Si/ha, increased by 69% compared with plants without added Si.
- Taxon
- RiceOryza sativat0
- Material
- KDML105e0
- Treatment
- 300 kg Si/hae0
- Outcome
- Grain yielde0
- Direction
- increasede0
- Value
- 69%e0
- Comparator
- plants grown without added Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield was the highest at 300 kg Si/ha, being increased by 35%, 53%, and 69% in CNT1, PTT1, and KDML105, respectively, compared with the plants grown without added Si”
t0“Rice”
Claim · model-written summary
Raising Si fertilizer up to 150 kg/ha significantly increased Si concentration in straw, flag leaf and husk in all rice varieties.
- Taxon
- RiceOryza sativat0
- Organ / stage
- straw, flag leaf, and huske0
- Treatment
- rising Si fertilizer application up to 150 kg/hae0
- Outcome
- Si concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rising Si fertilizer application up to 150 kg/ha significantly increased the Si concentration in straw, flag leaf, and husk in all varieties”
t0“Rice”
Claim · model-written summary
Si concentration in all rice tissues was higher under high Si (300 kg Si/ha).
- Taxon
- RiceOryza sativat0
- Organ / stage
- all tissuese0
- Treatment
- high Si (300 kg Si/ha)e0
- Outcome
- Si concentratione0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Si concentration in all tissues was higher under high Si (300 kg Si/ha)”
t0“Rice”
Claim · model-written summary
Si fertilizer application increased the expression level of OsLsi6 in both CNT1 and PTT1 rice varieties.
- Taxon
- RiceOryza sativat0
- Treatment
- Applying Si fertilizere0
- Gene
- OsLsi6e0
- Outcome
- expression levele0
- Direction
- increasede0
- Qualifier
- both CNT1 and PTT1 varietiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applying Si fertilizer also increased the expression level of OsLsi6 in both CNT1 and PTT1 varieties”
t0“Rice”
Claim · model-written summary
Expression of OsLsi6 in rice variety CNT1 was highest at 300 kg Si/ha, increased by 548% compared with untreated plants.
- Taxon
- RiceOryza sativat0
- Material
- CNT1e0
- Treatment
- 300 kg Si/hae0
- Gene
- OsLsi6e0
- Outcome
- expression levele0
- Direction
- increasede0
- Value
- 548%e0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest expression level of OsLsi6 was associated with 300 kg Si/ha, being increased by 548% in CNT1 and 326% in PTT1 compared with untreated plants”
t0“Rice”
Claim · model-written summary
Expression of OsLsi6 in rice variety PTT1 was highest at 300 kg Si/ha, increased by 326% compared with untreated plants.
- Taxon
- RiceOryza sativat0
- Material
- PTT1e0
- Treatment
- 300 kg Si/hae0
- Gene
- OsLsi6e0
- Outcome
- expression levele0
- Direction
- increasede0
- Value
- 326%e0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest expression level of OsLsi6 was associated with 300 kg Si/ha, being increased by 548% in CNT1 and 326% in PTT1 compared with untreated plants”
t0“Rice”
Claim · model-written summary
The authors conclude that Si application is an effective way to improve rice yield as well as Si concentration.
- Taxon
- riceOryza sativae0
- Outcome
- effective way to improve rice yield as well as Si concentratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si application is an effective way to improve rice yield as well as Si concentration”
Claim · model-written summary
The authors interpret the Si effect as related to higher expression of the OsLsi6 gene.
- Taxon
- RiceOryza sativat0
- Gene
- OsLsi6e0
- Outcome
- the effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect is related to the higher expression of the OsLsi6 gene”
t0“Rice”
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