Abstract
This study aimed to evaluate the agronomic efficiency and grain quality of rice cultivars to nitrogen application in upland conditions with supplemental sprinkler irrigation. The experiment was carried out in 2012/13 at Jaboticabal-SP on a randomized block and split plots design with four replications. The plots were composed of twelve rice cultivars (BRS Aroma, BRS Monarca, BRS Primavera, BRS Sertaneja, BRSMG Curinga, Caiapó, CIRAD 141, Guarani, IAC 165, IAC 201, IAC 202, and IAC 25), and two levels of nitrogen application (0 and 100 kg N ha-1) in topdress at the R1 stage (panicle differentiation) as subplots. The N application intensifies the degree of lodging, mainly at Caiapó, Guarani, IAC 165, IAC 201 and IAC 25 cultivars. The N application affects the number of sterile spikelets per panicle, mainly in CIRAD 141, BRS Sertaneja, IAC 202, and BRS Aroma cultivars. Caiapó cultivar shows higher grain yield and agronomic efficiency in function of N application, followed by BRS Monarca, BRSMG Curinga, IAC 165, and IAC 202. Although Caiapó, CIRAD 141, Guarani, IAC 165, IAC 202, and IAC 25 cultivars present better results, all the others cultivars also present acceptable values of milling yield, without N application effects. The grain protein content in rice is increased by the N topdressing application.
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Claims 7
Claim · model-written summary
Nitrogen application intensified lodging, mainly in five cultivars.
- Taxon
- rice
Oryza sativat0 - Treatment
- N applicatione0
- Outcome
- degree of lodginge0
- Direction
- intensifiese0
- Qualifier
- mainly at Caiapó, Guarani, IAC 165, IAC 201 and IAC 25 cultivarse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivars”
e0“The N application intensifies the degree of lodging, mainly at Caiapó, Guarani, IAC 165, IAC 201 and IAC 25 cultivars”
Claim · model-written summary
Nitrogen application affected sterile spikelets per panicle, mainly in four cultivars.
- Taxon
- riceOryza sativat0
- Treatment
- N applicatione0
- Outcome
- number of sterile spikelets per paniclee0
- Qualifier
- mainly in CIRAD 141, BRS Sertaneja, IAC 202, and BRS Aroma cultivarse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivars”
e0“The N application affects the number of sterile spikelets per panicle, mainly in CIRAD 141, BRS Sertaneja, IAC 202, and BRS Aroma cultivars”
Claim · model-written summary
Caiapó had higher grain yield with nitrogen application.
- Taxon
- riceOryza sativat0
- Material
- Caiapóe0
- Treatment
- N applicatione0
- Outcome
- grain yielde0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivars”
e0“Caiapó cultivar shows higher grain yield and agronomic efficiency in function of N application”
Claim · model-written summary
Caiapó had higher agronomic efficiency with nitrogen application.
- Taxon
- riceOryza sativat0
- Material
- Caiapóe0
- Treatment
- N applicatione0
- Outcome
- agronomic efficiencye0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivars”
e0“Caiapó cultivar shows higher grain yield and agronomic efficiency in function of N application”
Claim · model-written summary
The named cultivars had better milling yield results.
- Taxon
- riceOryza sativat0
- Material
- Caiapó, CIRAD 141, Guarani, IAC 165, IAC 202, and IAC 25e0
- Outcome
- better resultse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivars”
e0“Caiapó, CIRAD 141, Guarani, IAC 165, IAC 202, and IAC 25 cultivars present better results”
Claim · model-written summary
Nitrogen application did not affect milling yield.
- Taxon
- riceOryza sativat0
- Treatment
- N applicatione0
- Outcome
- milling yielde0
- Direction
- without N application effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivars”
e0“acceptable values of milling yield, without N application effects”
Claim · model-written summary
Nitrogen topdressing increased rice grain protein content.
- Taxon
- riceOryza sativae0
- Treatment
- N topdressing applicatione0
- Outcome
- grain protein contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain protein content in rice is increased by the N topdressing application”
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