Abstract
In 1976, a newly released rice variety, Yushin, was planted in 300,000 ha of the 533,000 ha of cultivated total hecterage with new rice varieties. High productivity and quality were achieved by farmers around country. However, the wilting phenomena of Yushin occured in some regions where were employed poor cultural management, and flowed sewage into the paddy field from industrial factories. This study was identified some factors for the wilting phenomena of Yushin rice variety in morphological and physiological aspects. The Yushin variety showed greater internode elongation on low part of the stems that close related to lodge at heavier nitrogen levels, excessive number of spikelets per unit leaf blade weight i.e. higher sink/source ratio, and greater consumption of respiratory substrate by increased respiration rate of rice plant as compared with those of Tongil rice variety. In physilogical aspects, the Yushin variety was significantly declined root development and root activities under heavy nitrogen conditions. Yushin rice variety was decreased O/N ratio, carbohydrate content in stem of rice plant, and physiological root activities specially in low light intensity, 50% light interception plots. Therefore, above factors were mainly promoted the wilting phenomena of Yushin rice variety.
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Claims 7
Claim · model-written summary
Yushin showed greater internode elongation on the low stem part at heavier nitrogen levels, closely related to lodging.
- Taxon
- Rice Plant
Oryza sativat0 - Material
- Yushine1
- Organ / stage
- low part of the stemse1
- Treatment
- heavier nitrogen levelse1
- Outcome
- internode elongatione1
- Direction
- greatere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Relationships of Physiologieal Activity and Anatomical Structure to the Wilting Phenomena in Rice Plant”
e1“The Yushin variety showed greater internode elongation on low part of the stems that close related to lodge at heavier nitrogen levels”
Claim · model-written summary
Yushin had an excessive number of spikelets per unit leaf blade weight, i.e. a higher sink/source ratio, compared with Tongil.
- Taxon
- Rice PlantOryza sativat0
- Material
- Yushine0
- Outcome
- number of spikelets per unit leaf blade weighte2
- Direction
- excessivee2
- Qualifier
- higher sink/source ratioe2
- Comparator
- Tongil rice varietye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Relationships of Physiologieal Activity and Anatomical Structure to the Wilting Phenomena in Rice Plant”
e0“a newly released rice variety, Yushin, was planted in 300,000 ha of the 533,000 ha of cultivated total hecterage with new rice varieties”
e2“excessive number of spikelets per unit leaf blade weight i.e. higher sink/source ratio, and greater consumption of respiratory substrate by increased respiration rate of rice plant as compared with those of Tongil rice variety”
Claim · model-written summary
Yushin had greater consumption of respiratory substrate, by increased respiration rate, compared with Tongil.
- Taxon
- Rice PlantOryza sativat0
- Material
- Yushine0
- Outcome
- consumption of respiratory substratee2
- Direction
- greatere2
- Qualifier
- by increased respiration ratee2
- Comparator
- Tongil rice varietye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Relationships of Physiologieal Activity and Anatomical Structure to the Wilting Phenomena in Rice Plant”
e0“a newly released rice variety, Yushin, was planted in 300,000 ha of the 533,000 ha of cultivated total hecterage with new rice varieties”
e2“excessive number of spikelets per unit leaf blade weight i.e. higher sink/source ratio, and greater consumption of respiratory substrate by increased respiration rate of rice plant as compared with those of Tongil rice variety”
Claim · model-written summary
Yushin root development and root activities were significantly declined under heavy nitrogen conditions.
- Taxon
- Rice PlantOryza sativat0
- Material
- Yushine3
- Treatment
- heavy nitrogen conditionse3
- Outcome
- root development and root activitiese3
- Direction
- significantly declinede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Relationships of Physiologieal Activity and Anatomical Structure to the Wilting Phenomena in Rice Plant”
e3“In physilogical aspects, the Yushin variety was significantly declined root development and root activities under heavy nitrogen conditions”
Claim · model-written summary
Yushin had decreased O/N ratio, stem carbohydrate content and root activities in low light intensity at 50% light interception.
- Taxon
- Rice PlantOryza sativat0
- Material
- Yushin rice varietye4
- Treatment
- low light intensity, 50% light interception plotse4
- Outcome
- O/N ratio, carbohydrate content in stem of rice plant, and physiological root activitiese4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Relationships of Physiologieal Activity and Anatomical Structure to the Wilting Phenomena in Rice Plant”
e4“Yushin rice variety was decreased O/N ratio, carbohydrate content in stem of rice plant, and physiological root activities specially in low light intensity, 50% light interception plots”
Claim · model-written summary
The authors conclude that the morphological and physiological factors mainly promoted wilting of Yushin.
- Taxon
- Rice PlantOryza sativat0
- Material
- Yushin rice varietye5
- Outcome
- wilting phenomenae5
- Qualifier
- above factorse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Relationships of Physiologieal Activity and Anatomical Structure to the Wilting Phenomena in Rice Plant”
e5“Therefore, above factors were mainly promoted the wilting phenomena of Yushin rice variety”
Claim · model-written summary
Wilting of Yushin occurred in some regions with poor cultural management and sewage flowing into paddy fields.
- Taxon
- Rice PlantOryza sativat0
- Material
- Yushine6
- Treatment
- poor cultural managemente6
- Outcome
- wilting phenomenae6
- Setting
- paddy fielde6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Relationships of Physiologieal Activity and Anatomical Structure to the Wilting Phenomena in Rice Plant”
e6“the wilting phenomena of Yushin occured in some regions where were employed poor cultural management, and flowed sewage into the paddy field from industrial factories”
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