Abstract
Background: Manganese (Mn) being one of the micronutrients available in acid soils acts crucial role in crop plants. In Assam soil, its concentration is 3-52 ppm whereas in plants the critical limit is 2-3ppm. Although the effects Mn on plants have been well documented, information on its impacts on yield and yield components in upland rice crop grown in Assam was scanty, and deserved its investigation. Method: A pot experiment was carried out to study the effects of Mn (0, 10,20,30 ppm Mn as MnSO4H2O) foliar spray (each 1000cm3) at vegetative stage i.e.70days after sowing, on yield and yield components of ten rice genotypes (Kanaklata, Mulagabharu, Kapilee, Disang, Kolong, Joymoti, Jyoti Prasad, Luit, Lachit and Chilarai) cultivated in Assam. Conclusion: The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%), panicle weight (10.54-19.50%), panicle number per plant (4.54-13.63%), number of seeds per panicle (18.38-36.48%), test weight (7.21-29.15%), high density grains (5.59-30.45%), economic yield (14.40-28.03%), biological yield (32.58-47.70%), and harvest index (3.2-7.90%). 30ppm Mn affected adversely all the physiological attributes in the study. Among the ten genotypes, Kanaklata performed the best followed by Chilarai in the experiment.
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Claims 12
Claim · model-written summary
A 10 ppm Mn dose significantly increased rice panicle length by 16.29-37.46%.
- Taxon
- Rice
Oryza sativat0 - Treatment
- Mn (10ppm)e0
- Outcome
- panicle lengthe0
- Direction
- increasede0
- Value
- 16.29-37.46%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
A 10 ppm Mn dose significantly increased rice panicle weight by 10.54-19.50%.
- Taxon
- RiceOryza sativat0
- Treatment
- Mn (10ppm)e0
- Outcome
- panicle weighte0
- Direction
- increasede0
- Value
- 10.54-19.50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%), panicle weight (10.54-19.50%)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
A 10 ppm Mn dose significantly increased panicle number per rice plant by 4.54-13.63%.
- Taxon
- RiceOryza sativat0
- Treatment
- Mn (10ppm)e0
- Outcome
- panicle number per plante0
- Direction
- increasede0
- Value
- 4.54-13.63%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%), panicle weight (10.54-19.50%), panicle number per plant (4.54-13.63%)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
A 10 ppm Mn dose significantly increased rice seeds per panicle by 18.38-36.48%.
- Taxon
- RiceOryza sativat0
- Treatment
- Mn (10ppm)e0
- Outcome
- number of seeds per paniclee0
- Direction
- increasede0
- Value
- 18.38-36.48%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%), panicle weight (10.54-19.50%), panicle number per plant (4.54-13.63%), number of seeds per panicle (18.38-36.48%)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
A 10 ppm Mn dose significantly increased rice test weight by 7.21-29.15%.
- Taxon
- RiceOryza sativat0
- Treatment
- Mn (10ppm)e0
- Outcome
- test weighte0
- Direction
- increasede0
- Value
- 7.21-29.15%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%), panicle weight (10.54-19.50%), panicle number per plant (4.54-13.63%), number of seeds per panicle (18.38-36.48%), test weight (7.21-29.15%)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
A 10 ppm Mn dose significantly increased rice high density grains by 5.59-30.45%.
- Taxon
- RiceOryza sativat0
- Treatment
- Mn (10ppm)e0
- Outcome
- high density grainse0
- Direction
- increasede0
- Value
- 5.59-30.45%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%), panicle weight (10.54-19.50%), panicle number per plant (4.54-13.63%), number of seeds per panicle (18.38-36.48%), test weight (7.21-29.15%), high density grains (5.59-30.45%)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
A 10 ppm Mn dose significantly increased rice economic yield by 14.40-28.03%.
- Taxon
- RiceOryza sativat0
- Treatment
- Mn (10ppm)e0
- Outcome
- economic yielde0
- Direction
- increasede0
- Value
- 14.40-28.03%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%), panicle weight (10.54-19.50%), panicle number per plant (4.54-13.63%), number of seeds per panicle (18.38-36.48%), test weight (7.21-29.15%), high density grains (5.59-30.45%), economic yield (14.40-28.03%)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
A 10 ppm Mn dose significantly increased rice biological yield by 32.58-47.70%.
- Taxon
- RiceOryza sativat0
- Treatment
- Mn (10ppm)e0
- Outcome
- biological yielde0
- Direction
- increasede0
- Value
- 32.58-47.70%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%), panicle weight (10.54-19.50%), panicle number per plant (4.54-13.63%), number of seeds per panicle (18.38-36.48%), test weight (7.21-29.15%), high density grains (5.59-30.45%), economic yield (14.40-28.03%), biological yield (32.58-47.70%)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
A 10 ppm Mn dose significantly increased rice harvest index by 3.2-7.90%.
- Taxon
- RiceOryza sativat0
- Treatment
- Mn (10ppm)e0
- Outcome
- harvest indexe0
- Direction
- increasede0
- Value
- 3.2-7.90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose of Mn (10ppm) significantly increased panicle length (16.29-37.46%), panicle weight (10.54-19.50%), panicle number per plant (4.54-13.63%), number of seeds per panicle (18.38-36.48%), test weight (7.21-29.15%), high density grains (5.59-30.45%), economic yield (14.40-28.03%), biological yield (32.58-47.70%), and harvest index (3.2-7.90%)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Thirty ppm Mn adversely affected physiological attributes of rice.
- Taxon
- RiceOryza sativat0
- Treatment
- 30ppm Mne0
- Outcome
- physiological attributese0
- Direction
- affected adverselye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“30ppm Mn affected adversely all the physiological attributes in the study.”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Kanaklata performed best among ten rice genotypes.
- Taxon
- RiceOryza sativat0
- Material
- Kanaklatae0
- Outcome
- performed the beste0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the ten genotypes, Kanaklata performed the best followed by Chilarai in the experiment.”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Chilarai ranked after Kanaklata among ten rice genotypes.
- Taxon
- RiceOryza sativat0
- Material
- Chilaraie0
- Outcome
- followed by Chilaraie0
- Comparator
- Kanaklatae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the ten genotypes, Kanaklata performed the best followed by Chilarai in the experiment.”
t0“Rice (Oryza sativa L.)”
The same questions in other papers
manganese atom · yield · Oryza sativa (rice)Results differ
22 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- no effect
23 papers more in this group
See all 27 papers →manganese atom · quality: grain · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.