Abstract
Lodging of rice in Egypt reduces production and may be related to the agronomic practices. A 2-years field experiment was conducted at the Experimental Farm of Rice Research and Training Center, Kafr El-Sheikh, Egypt, during two growing summer seasons of 2013 and 2014 to study the effect of growth regulators application at different nitrogen levels on lodging resistance and productivity of Sakha102 rice cultivar. Nitrogen levels 0, 110 and 165 kg N ha-1 in the form of urea (46.5%N) were allocated in the main plots while, growth regulators and potassium sulfate (48% K2O) were allocated in the subplots. Growth regulators (Cycocel and benzyladenine) and K2O were applied as foliar application at 15 and 30 days after transplanting. Cycocel, benzyladenine and K2O were applied at the concentration of 80 ppm, 15 ppm and 2%, respectively. Data indicated that most of the studied characters increased significantly by nitrogen and growth regulators application. Application of nitrogen increased lodging area, while application of different growth regulators reduced the rice lodging area especially at the high level of nitrogen. Leaf area index at 50 days after transplanting (DAT), plant height (cm) at harvest, number of panicles m-2, grain yield t ha-1 and NPK uptake were correlated significantly and positively with lodging area percentage, while 1,000-grain weight (g) correlated significantly and negatively with lodging area percentage. Key words: Lodging, growth regulators, benzyladenine, cycocel, nitrogen, potassium.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Nitrogen and growth regulators application significantly increased most of the studied rice characters
- Taxon
- rice
Oryza sativae1 - Treatment
- nitrogen and growth regulators applicatione2
- Outcome
- most of the studied characterse2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lodging of rice in Egypt reduces production”
e2“Data indicated that most of the studied characters increased significantly by nitrogen and growth regulators application”
Claim · model-written summary
Application of nitrogen increased lodging area in rice
- Taxon
- riceOryza sativae1
- Treatment
- Application of nitrogene3
- Outcome
- lodging areae3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lodging of rice in Egypt reduces production”
e3“Application of nitrogen increased lodging area”
Claim · model-written summary
Application of different growth regulators reduced rice lodging area, especially at the high nitrogen level
- Taxon
- riceOryza sativae1
- Treatment
- application of different growth regulatorse4
- Outcome
- lodging areae4
- Direction
- reducede4
- Qualifier
- especially at the high level of nitrogene4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lodging of rice in Egypt reduces production”
e4“application of different growth regulators reduced the rice lodging area especially at the high level of nitrogen”
Claim · model-written summary
Leaf area index at 50 days after transplanting is positively associated with lodging area percentage in rice
- Taxon
- riceOryza sativae1
- Outcome
- Leaf area index at 50 days after transplanting (DAT)e5
- Direction
- positivelye5
- Comparator
- lodging area percentagee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lodging of rice in Egypt reduces production”
e5“Leaf area index at 50 days after transplanting (DAT), plant height (cm) at harvest, number of panicles m-2, grain yield t ha-1 and NPK uptake were correlated significantly and positively with lodging area percentage”
Claim · model-written summary
Plant height at harvest is positively associated with lodging area percentage in rice
- Taxon
- riceOryza sativae1
- Outcome
- plant height (cm) at harveste5
- Direction
- positivelye5
- Comparator
- lodging area percentagee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lodging of rice in Egypt reduces production”
e5“Leaf area index at 50 days after transplanting (DAT), plant height (cm) at harvest, number of panicles m-2, grain yield t ha-1 and NPK uptake were correlated significantly and positively with lodging area percentage”
Claim · model-written summary
Number of panicles per square metre is positively associated with lodging area percentage in rice
- Taxon
- riceOryza sativae1
- Outcome
- number of panicles m-2e5
- Direction
- positivelye5
- Comparator
- lodging area percentagee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lodging of rice in Egypt reduces production”
e5“Leaf area index at 50 days after transplanting (DAT), plant height (cm) at harvest, number of panicles m-2, grain yield t ha-1 and NPK uptake were correlated significantly and positively with lodging area percentage”
Claim · model-written summary
Grain yield is positively associated with lodging area percentage in rice
- Taxon
- riceOryza sativae1
- Outcome
- grain yield t ha-1e5
- Direction
- positivelye5
- Comparator
- lodging area percentagee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lodging of rice in Egypt reduces production”
e5“Leaf area index at 50 days after transplanting (DAT), plant height (cm) at harvest, number of panicles m-2, grain yield t ha-1 and NPK uptake were correlated significantly and positively with lodging area percentage”
Claim · model-written summary
NPK uptake is positively associated with lodging area percentage in rice
- Taxon
- riceOryza sativae1
- Outcome
- NPK uptakee5
- Direction
- positivelye5
- Comparator
- lodging area percentagee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lodging of rice in Egypt reduces production”
e5“Leaf area index at 50 days after transplanting (DAT), plant height (cm) at harvest, number of panicles m-2, grain yield t ha-1 and NPK uptake were correlated significantly and positively with lodging area percentage”
Claim · model-written summary
1,000-grain weight is negatively associated with lodging area percentage in rice
- Taxon
- riceOryza sativae1
- Outcome
- 1,000-grain weight (g)e7
- Direction
- negativelye7
- Comparator
- lodging area percentagee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lodging of rice in Egypt reduces production”
e7“1,000-grain weight (g) correlated significantly and negatively with lodging area percentage”
The same questions in other papers
class · growth · Oryza sativa (rice)Positive and negative results
61 papers in the same direction as this paper · 17 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
76 papers more in this group
See all 80 papers →nitrogen · growth · Oryza sativa (rice)Positive and negative results
108 papers in the same direction as this paper · 402 in the opposite direction
- positive
- positive
- positive
507 papers more in this group
See all 511 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.