Abstract
This experiment was conducted to evaluate the effect of split application of nitrogen(N) on development of vascular bundle(VB) and yield components of rice. Two cultivars were used in this study; IR58, an indica type and Shinunbongbyeim a japonica type. The number and total cross sectional area of the VB in the peduncle and leaf blade were more and bigger in N split application than 100 percent basal fertilizer. Nitrogen split application at necknode differentiation stage increased the number and size of the VB. Nitrogen split application resulted in increased panicle number with application of N before transplanting and at tillering stage; increased spikelets number with N application at necknode differentiation stage; and increased spikelet fertility and 1000 grain weight with N application at necknode differentiation and heading stages. Grain yield increased 7-10% in N split as compared to all basal application. The total cross sectional area of VB in peduncle closely correlated with the number of spikelets per panicle. Nitrogen management can have an impact on spikelet differentiation through more and bigger VB and increase grain yield potential.
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Claims 8
Claim · model-written summary
Number and total cross-sectional area of vascular bundles in peduncle and leaf blade were larger under split nitrogen application than under 100 percent basal fertilizer.
- Taxon
- Rice
Oryza sativat0 - Organ / stage
- peduncle and leaf bladee0
- Treatment
- N split applicatione0
- Outcome
- number and total cross sectional area of the VBe0
- Direction
- more and biggere0
- Comparator
- 100 percent basal fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Components of Rice Cultivars”
e0“The number and total cross sectional area of the VB in the peduncle and leaf blade were more and bigger in N split application than 100 percent basal fertilizer”
Claim · model-written summary
Split nitrogen application at the necknode differentiation stage increased the number and size of vascular bundles.
- Taxon
- RiceOryza sativat0
- Treatment
- Nitrogen split application at necknode differentiation stagee0
- Outcome
- number and size of the VBe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Components of Rice Cultivars”
e0“Nitrogen split application at necknode differentiation stage increased the number and size of the VB”
Claim · model-written summary
Nitrogen split application before transplanting and at tillering stage increased panicle number.
- Taxon
- RiceOryza sativat0
- Treatment
- application of N before transplanting and at tillering stagee0
- Outcome
- panicle numbere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Components of Rice Cultivars”
e0“increased panicle number with application of N before transplanting and at tillering stage”
Claim · model-written summary
Nitrogen application at the necknode differentiation stage increased spikelet number.
- Taxon
- RiceOryza sativat0
- Treatment
- N application at necknode differentiation stagee0
- Outcome
- spikelets numbere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Components of Rice Cultivars”
e0“increased spikelets number with N application at necknode differentiation stage”
Claim · model-written summary
Nitrogen application at necknode differentiation and heading stages increased spikelet fertility and 1000 grain weight.
- Taxon
- RiceOryza sativat0
- Treatment
- N application at necknode differentiation and heading stagese0
- Outcome
- spikelet fertility and 1000 grain weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Components of Rice Cultivars”
e0“increased spikelet fertility and 1000 grain weight with N application at necknode differentiation and heading stages”
Claim · model-written summary
Grain yield increased 7-10% under split nitrogen application compared with all-basal application.
- Taxon
- RiceOryza sativat0
- Treatment
- N splite0
- Outcome
- Grain yielde0
- Direction
- increasede0
- Value
- 7-10%e0
- Comparator
- all basal applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Components of Rice Cultivars”
e0“Grain yield increased 7-10% in N split as compared to all basal application”
Claim · model-written summary
Total cross-sectional area of vascular bundles in the peduncle was closely correlated with the number of spikelets per panicle.
- Taxon
- RiceOryza sativat0
- Organ / stage
- pedunclee0
- Outcome
- number of spikelets per paniclee0
- Direction
- closely correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Components of Rice Cultivars”
e0“The total cross sectional area of VB in peduncle closely correlated with the number of spikelets per panicle”
Claim · model-written summary
Nitrogen management can affect spikelet differentiation through more and bigger vascular bundles and raise grain yield potential.
- Taxon
- RiceOryza sativat0
- Treatment
- Nitrogen managemente0
- Outcome
- spikelet differentiatione0
- Qualifier
- through more and bigger VBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Components of Rice Cultivars”
e0“Nitrogen management can have an impact on spikelet differentiation through more and bigger VB and increase grain yield potential”
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