Abstract
This experiment was carried out to clarify the causes of sterility in terms of pollination characteristics for the sterile-type cold damage as influenced by amount of nitrogen application and shading conditions in rice plants. The results obtained are as follows: The number of young microspore per anther was not changed greatly by amount of nitrogen application. The number of ripened pollen grains per anther decreased according to increase in nitrogen application and shading degree, but the anther length and stigma length were not significantly affected by those factors. The number of pollen grains on stigma decreased by intense shading. The fertility decreased with increased nitrogen application and intensified shading. The elongation of auricle distance per day was less in less nitrogen application and intense shading. The internode length of the first and the second from the top were shortened with intense shading, but that of the fourth was elongated. The number of spikelet per panicle decreased with increase in shading intensity.
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Claims 9
Claim · model-written summary
Number of young microspores per anther was not changed greatly by nitrogen application.
- Taxon
- rice
Oryza sativae0 - Treatment
- amount of nitrogen applicatione1
- Outcome
- number of young microspore per anthere1
- Direction
- not changed greatlye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as influenced by amount of nitrogen application and shading conditions in rice plants”
e1“The number of young microspore per anther was not changed greatly by amount of nitrogen application”
Claim · model-written summary
Number of ripened pollen grains per anther decreased with increasing nitrogen application and shading degree.
- Taxon
- riceOryza sativae0
- Treatment
- increase in nitrogen application and shading degreee2
- Outcome
- number of ripened pollen grains per anthere2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as influenced by amount of nitrogen application and shading conditions in rice plants”
e2“The number of ripened pollen grains per anther decreased according to increase in nitrogen application and shading degree”
Claim · model-written summary
Anther length and stigma length were not significantly affected by nitrogen application and shading.
- Taxon
- riceOryza sativae0
- Treatment
- amount of nitrogen application and shading conditionse0
- Outcome
- anther length and stigma lengthe3
- Direction
- not significantly affectede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as influenced by amount of nitrogen application and shading conditions in rice plants”
e3“but the anther length and stigma length were not significantly affected by those factors”
Claim · model-written summary
Number of pollen grains on the stigma decreased under intense shading.
- Taxon
- riceOryza sativae0
- Treatment
- intense shadinge4
- Outcome
- number of pollen grains on stigmae4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as influenced by amount of nitrogen application and shading conditions in rice plants”
e4“The number of pollen grains on stigma decreased by intense shading”
Claim · model-written summary
Fertility decreased with increased nitrogen application and intensified shading.
- Taxon
- riceOryza sativae0
- Treatment
- increased nitrogen application and intensified shadinge5
- Outcome
- fertilitye5
- Direction
- decreasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as influenced by amount of nitrogen application and shading conditions in rice plants”
e5“The fertility decreased with increased nitrogen application and intensified shading”
Claim · model-written summary
Elongation of auricle distance per day was less under less nitrogen application and intense shading.
- Taxon
- riceOryza sativae0
- Treatment
- less nitrogen application and intense shadinge6
- Outcome
- elongation of auricle distance per daye6
- Direction
- lesse6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as influenced by amount of nitrogen application and shading conditions in rice plants”
e6“The elongation of auricle distance per day was less in less nitrogen application and intense shading”
Claim · model-written summary
Internode length of the first and second internodes from the top was shortened under intense shading.
- Taxon
- riceOryza sativae0
- Organ / stage
- the first and the second from the tope7
- Treatment
- intense shadinge7
- Outcome
- internode lengthe7
- Direction
- shortenede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as influenced by amount of nitrogen application and shading conditions in rice plants”
e7“The internode length of the first and the second from the top were shortened with intense shading, but that of the fourth was elongated”
Claim · model-written summary
Internode length of the fourth internode was elongated under intense shading.
- Taxon
- riceOryza sativae0
- Organ / stage
- the fourthe7
- Treatment
- intense shadinge7
- Outcome
- internode lengthe7
- Direction
- elongatede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as influenced by amount of nitrogen application and shading conditions in rice plants”
e7“The internode length of the first and the second from the top were shortened with intense shading, but that of the fourth was elongated”
Claim · model-written summary
Number of spikelets per panicle decreased with increasing shading intensity.
- Taxon
- riceOryza sativat0
- Treatment
- increase in shading intensitye0
- Outcome
- number of spikelet per paniclee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sterile-type Cold Injury in Rice”
e0“The number of spikelet per panicle decreased with increase in shading intensity”
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