Abstract
The factors of the occurrence of straighthead of rice plants are vague yet. The purpose of this paper is to present the effects of the application of barley straws in common paddy fields on the occurrence of the straighthead of rice plants. The summary of the results is shown below. 1) Some plants with high percentage sterility occured in the test plots in which barley straws had been applied. 2) Numerous plants with high percentage sterility occured in the barley straws applied paddy field which was restored to the paddy field last spring after ten years use as an upland. 3) Abnormal rice plants with deformed panicles and spikelets occured in the test plot in which barley straws were applied two years before. Percentage sterility of them were high (Fig. 4). 4) Abundant typical symptoms of straighthead of rice plants were observed in a farmer's paddy field in which much barnyard manure had been applied. 5) From above-mentioned results, it was concluded that straighthead of rice plants occured not only in paddy fields which had been restored after at least more than several years use as uplands but also in common paddy fields in which much organic matter such as barley straws had been applied.
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Claims 6
Claim · model-written summary
Barley straw plots contained some rice plants with high sterility.
- Taxon
- rice plants
Oryza sativat0 - Treatment
- barley strawse0
- Outcome
- high percentage sterilitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some plants with high percentage sterility occured in the test plots in which barley straws had been applied.”
t0“rice plants”
Claim · model-written summary
Numerous rice plants had high sterility in a straw treated paddy restored after ten years upland use.
- Taxon
- rice plantsOryza sativat0
- Treatment
- barley strawse0
- Outcome
- high percentage sterilitye0
- Qualifier
- after ten years use as an uplande0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Numerous plants with high percentage sterility occured in the barley straws applied paddy field which was restored to the paddy field last spring after ten years use as an upland.”
t0“rice plants”
Claim · model-written summary
Abnormal panicles and spikelets occurred in a plot treated with barley straw two years earlier.
- Taxon
- rice plantsOryza sativat0
- Treatment
- barley strawse0
- Outcome
- deformed panicles and spikeletse0
- Qualifier
- two years beforee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Abnormal rice plants with deformed panicles and spikelets occured in the test plot in which barley straws were applied two years before.”
t0“rice plants”
Claim · model-written summary
Sterility was high in the abnormal rice plants in the earlier straw treated plot.
- Taxon
- rice plantsOryza sativae1
- Outcome
- Percentage sterilitye0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentage sterility of them were high (Fig. 4).”
e1“Abnormal rice plants with deformed panicles and spikelets occured in the test plot in which barley straws were applied two years before.”
Claim · model-written summary
Abundant straighthead symptoms occurred in a manure treated farmer paddy field.
- Taxon
- rice plantsOryza sativae0
- Treatment
- much barnyard manuree0
- Outcome
- typical symptoms of straightheade0
- Setting
- farmer's paddy fielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Abundant typical symptoms of straighthead of rice plants were observed in a farmer's paddy field in which much barnyard manure had been applied.”
Claim · model-written summary
Authors concluded that straighthead also occurs in ordinary paddy fields with much organic matter.
- Taxon
- rice plantsOryza sativae0
- Treatment
- much organic matter such as barley strawse0
- Outcome
- straightheade0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“straighthead of rice plants occured not only in paddy fields which had been restored after at least more than several years use as uplands but also in common paddy fields in which much organic matter such as barley straws had been applied.”
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