Abstract
In order to consider effects of various levels of nitrogen and potassium application on cooking quality traits of rice cultivars, an experiment was conducted in 2004 and 2005 using Tarrom (a local Iranian landrace) and Neda (an Iranian improved cultivar). In this experiment four levels of nitrogen fertilizer (0, 50, 100 and 150 kg N ha(-2) from urea source) and four levels of potassium fertilizer (0, 75, 150 and 225 kg K2O ha(-2) from potassium sulfate source) have been applied using a split factorial design with three replications. Nitrogen fertilizer have been applied in three stages (1/3 in transplanting stage, 1/3 in tillering stage and finally 1/3 in flowering initiation stage) and potassium fertilizer have been applied in two stages (1/2 in transplanting stage and 1/2 in shooting stage). Results showed that application of nitrogen increased gel consistency and decreased amylose content of rice kernel; however, had not significantly affected gelatinization temperature and grain protein content. Application of potassium increased gel consistency and grain protein content but had not significantly affected gelatinization temperature and kernel amylose content. Gel consistency and gelatinization temperature of Tarrom were higher than Neda; whilst, inversely, grain amylose and protein contents of Neda were higher than Tarrom. Simultaneous application of nitrogen and potassium has no significant effects on gel consistency, gelatinization temperature and grain protein content; But maximum amylose content was achieved using none of fertilizers in Neda and 75 kg K2O ha(-1) with no nitrogen fertilizer in Tarrom genotypes, respectively.
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Claims 10
Claim · model-written summary
Nitrogen application increased rice kernel gel consistency.
- Taxon
- Rice (Oryza sativa L.)
Oryza sativat0 - Treatment
- nitrogene0
- Outcome
- gel consistencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of nitrogen increased gel consistency”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Nitrogen application decreased rice kernel amylose content.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- nitrogene1
- Outcome
- amylose content of rice kernele0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased amylose content of rice kernel”
e1“application of nitrogen increased gel consistency”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Nitrogen application did not significantly affect gelatinization temperature or grain protein content.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- nitrogene1
- Outcome
- gelatinization temperature and grain protein contente0
- Direction
- not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“had not significantly affected gelatinization temperature and grain protein content”
e1“application of nitrogen increased gel consistency”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Potassium application increased rice gel consistency and grain protein content.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- potassiume0
- Outcome
- gel consistency and grain protein contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of potassium increased gel consistency and grain protein content”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Potassium application did not significantly affect gelatinization temperature or kernel amylose content.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- potassiume0
- Outcome
- gelatinization temperature and kernel amylose contente0
- Direction
- not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of potassium increased gel consistency and grain protein content but had not significantly affected gelatinization temperature and kernel amylose content”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Tarrom had higher gel consistency and gelatinization temperature than Neda.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Material
- Tarrome0
- Outcome
- Gel consistency and gelatinization temperaturee0
- Direction
- highere0
- Comparator
- Nedae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gel consistency and gelatinization temperature of Tarrom were higher than Neda”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Neda had higher grain amylose and protein contents than Tarrom.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Material
- Nedae0
- Outcome
- grain amylose and protein contentse0
- Direction
- highere0
- Comparator
- Tarrome0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain amylose and protein contents of Neda were higher than Tarrom”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Combined nitrogen and potassium application had no significant effect on gel consistency, gelatinization temperature, or grain protein content.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- Simultaneous application of nitrogen and potassiume0
- Outcome
- gel consistency, gelatinization temperature and grain protein contente0
- Direction
- no significant effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Simultaneous application of nitrogen and potassium has no significant effects on gel consistency, gelatinization temperature and grain protein content”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Neda had maximum amylose content without either fertilizer.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Material
- Nedae0
- Treatment
- none of fertilizerse0
- Outcome
- amylose contente0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum amylose content was achieved using none of fertilizers in Neda”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Tarrom had maximum amylose content with potassium and no nitrogen.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Material
- Tarrome0
- Treatment
- 75 kg K2O ha(-1) with no nitrogen fertilizere0
- Outcome
- amylose contente1
- Direction
- maximume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75 kg K2O ha(-1) with no nitrogen fertilizer in Tarrom genotypes”
e1“maximum amylose content was achieved using none of fertilizers in Neda and 75 kg K2O ha(-1) with no nitrogen fertilizer in Tarrom genotypes”
t0“Rice (Oryza sativa L.)”
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See all 100 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.