Abstract
Producing robust seedlings in the nursery and transplanting them at the optimal age significantly enhances transplanted rice yield and profitability. Seed priming with appropriate biocontrol agents followed by sowing at optimum density in the nursery produces healthy and vigorous seedlings. A field experiment was conducted for two years to evaluate the biocontrol agents, seeding density and optimum age of seedlings to achieve potential yield of transplanted rice under shallow low land.The study employs split-split plot design with three factors: Main plots (seed treatments; S1: Pseudomonas @ 10 g/ kg of seed, S2: Trcichoderma @ 10 g/ kg of seed and S3: no seed treatment), sub plots (seeding density; D1: 40 g/m2, D2: 50 g/m2 and D3: 60 g/m2) and sub-sub plots (age of seedlings at transplanting; A1: 42 days and A2: 21 days). Seed treatment with Trichoderma (NRRI formulation) resulted in production of seedlings having higher length: biomass ratio (55.0) and increase in the grain, straw yield and gross return by 14.0, 12.3 and 14.1%, respectively, over the control. Transplanting of young seedlings (21 days) resulted in significantly higher average gross return of Rs123660/ha, B: C ratio (2.09) and economic water productivity (Rs15.09/m3). Use of 21 days young seedlings reduced the cost of production of transplanted rice by 10.5% as compared to 42 days old seedlings.Hence, it is recommended that to treat rice seeds with Trichoderma @ 10 g/ kg of seed, maintain a low seeding density (40-50 g/m2) at nursery and transplant 21 old days seedlings for realising yield potential of transplanted rice under shallow lowland.
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Claims 9
Claim · model-written summary
Trichoderma seed treatment yielded rice seedlings with a higher length to biomass ratio of 55.0.
- Taxon
- rice
Oryza sativat0 - Treatment
- Seed treatment with Trichoderma (NRRI formulation)e0
- Interactor
- Trichoderma
Trichodermae0biocontrol_agent - Outcome
- length: biomass ratioe0
- Direction
- highere0
- Value
- 55.0e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed treatment with Trichoderma (NRRI formulation) resulted in production of seedlings having higher length: biomass ratio (55.0)”
t0“RICE”
Claim · model-written summary
Trichoderma seed treatment increased rice grain yield 14.0% over control.
- Taxon
- riceOryza sativat0
- Treatment
- Trichodermae1
- Interactor
- TrichodermaTrichodermae1biocontrol_agent
- Outcome
- graine0
- Direction
- increasee0
- Value
- 14.0e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in the grain, straw yield and gross return by 14.0, 12.3 and 14.1%, respectively, over the control”
t0“RICE”
e1“Seed treatment with Trichoderma (NRRI formulation) resulted in production of seedlings”
Claim · model-written summary
Trichoderma seed treatment increased rice straw yield 12.3% over control.
- Taxon
- riceOryza sativat0
- Treatment
- Trichodermae1
- Interactor
- TrichodermaTrichodermae1biocontrol_agent
- Outcome
- straw yielde0
- Direction
- increasee0
- Value
- 12.3e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in the grain, straw yield and gross return by 14.0, 12.3 and 14.1%, respectively, over the control”
t0“RICE”
e1“Seed treatment with Trichoderma (NRRI formulation) resulted in production of seedlings”
Claim · model-written summary
Trichoderma seed treatment increased rice gross return 14.1% over control.
- Taxon
- riceOryza sativat0
- Treatment
- Trichodermae1
- Interactor
- TrichodermaTrichodermae1biocontrol_agent
- Outcome
- gross returne0
- Direction
- increasee0
- Value
- 14.1%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in the grain, straw yield and gross return by 14.0, 12.3 and 14.1%, respectively, over the control”
t0“RICE”
e1“Seed treatment with Trichoderma (NRRI formulation) resulted in production of seedlings”
Claim · model-written summary
Transplanting 21-day rice seedlings gave significantly higher average gross return of Rs123660/ha.
- Taxon
- riceOryza sativat0
- Treatment
- young seedlings (21 days)e0
- Outcome
- average gross returne0
- Direction
- highere0
- Value
- Rs123660/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transplanting of young seedlings (21 days) resulted in significantly higher average gross return of Rs123660/ha, B: C ratio (2.09) and economic water productivity (Rs15.09/m3)”
t0“RICE”
Claim · model-written summary
Transplanting 21-day rice seedlings gave a significantly higher B:C ratio of 2.09.
- Taxon
- riceOryza sativat0
- Treatment
- young seedlings (21 days)e0
- Outcome
- B: C ratioe0
- Direction
- highere0
- Value
- 2.09e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transplanting of young seedlings (21 days) resulted in significantly higher average gross return of Rs123660/ha, B: C ratio (2.09) and economic water productivity (Rs15.09/m3)”
t0“RICE”
Claim · model-written summary
Transplanting 21-day rice seedlings gave significantly higher economic water productivity of Rs15.09/m3.
- Taxon
- riceOryza sativat0
- Treatment
- young seedlings (21 days)e0
- Outcome
- economic water productivitye0
- Direction
- highere0
- Value
- Rs15.09/m3e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transplanting of young seedlings (21 days) resulted in significantly higher average gross return of Rs123660/ha, B: C ratio (2.09) and economic water productivity (Rs15.09/m3)”
t0“RICE”
Claim · model-written summary
Using 21-day rice seedlings reduced production cost 10.5% versus 42-day seedlings.
- Taxon
- riceOryza sativae0
- Treatment
- 21 days young seedlingse0
- Outcome
- cost of production of transplanted ricee0
- Direction
- reducede0
- Value
- 10.5%e0
- Comparator
- 42 days old seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Use of 21 days young seedlings reduced the cost of production of transplanted rice by 10.5% as compared to 42 days old seedlings”
Claim · model-written summary
The authors recommend Trichoderma seed treatment, 40-50 g/m2 nursery density and 21-day transplanting for shallow-lowland rice.
- Taxon
- riceOryza sativae0
- Interactor
- TrichodermaTrichodermae0biocontrol_agent
- Outcome
- to treat rice seeds with Trichoderma @ 10 g/ kg of seed, maintain a low seeding density (40-50 g/m2) at nursery and transplant 21 old days seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to treat rice seeds with Trichoderma @ 10 g/ kg of seed, maintain a low seeding density (40-50 g/m2) at nursery and transplant 21 old days seedlings for realising yield potential of transplanted rice under shallow lowland”
The same questions in other papers
Trichoderma · growth · Oryza sativa (rice)Results differ
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- negative
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See all 36 papers →Trichoderma · yield · Oryza sativa (rice)Results agree
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See all 32 papers →seed treatment · growth · Oryza sativa (rice)Positive and negative results
229 papers in the same direction as this paper · 15 in the opposite direction
- negative
- no effect
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See all 245 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.