Abstract
The effect of ethylene in the soil atmosphere on soybean and rice seedling growth was investigated. The results obtained are summarized as follows: 1. Ethylene production from dry soil was seven times much more than that from re-dried soil which was dried again just after submerging for two days, when ethylene determination was made from these soils saturated with water at 30°C. When soybean seedlings were grown in these two kinds of soil, the inhibition of root elongation and increase of root dry weight were observed in the dry soil, suggesting the relationship between higher ethylene concentration in root tissue and the growth phenomena mentioned. 2. Tremendous ethylene production was detected from the soil mixed with compost. When soybean seedlings were grown in this soil, the inhibition of root and shoot growth were observed as well as the increase of root dry weight and stem-diameter. 3. Elongation of seminal root and coleoptile in rice seedling was stimulated by ethylene which was evoluted from submerged soil. The ethylene evolution from the submerged soil was observed constantly for twelve to sixteen weeks after submergence. These results suggest that ethylene produced from soil plays an important role for regulating the growth of seedlings.
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Claims 6
Claim · model-written summary
Soybean root elongation was inhibited in dry soil compared with re-dried soil.
- Taxon
- soybean
Glycine maxe0 - Treatment
- dry soile0
- Outcome
- root elongatione0
- Direction
- inhibitione0
- Comparator
- re-dried soile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When soybean seedlings were grown in these two kinds of soil, the inhibition of root elongation and increase of root dry weight were observed in the dry soil”
e1“re-dried soil which was dried again just after submerging for two days”
Claim · model-written summary
Soybean root dry weight increased in dry soil.
- Taxon
- soybeanGlycine maxe0
- Treatment
- dry soile0
- Outcome
- root dry weighte0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When soybean seedlings were grown in these two kinds of soil, the inhibition of root elongation and increase of root dry weight were observed in the dry soil”
Claim · model-written summary
Compost-amended soil inhibited soybean root and shoot growth.
- Taxon
- soybeanGlycine maxe0
- Treatment
- soil mixed with composte1
- Outcome
- root and shoot growthe0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When soybean seedlings were grown in this soil, the inhibition of root and shoot growth were observed as well as the increase of root dry weight and stem-diameter.”
e1“soil mixed with compost”
Claim · model-written summary
Compost-amended soil increased soybean root dry weight and stem diameter.
- Taxon
- soybeanGlycine maxe0
- Treatment
- soil mixed with composte1
- Outcome
- root dry weight and stem-diametere0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When soybean seedlings were grown in this soil, the inhibition of root and shoot growth were observed as well as the increase of root dry weight and stem-diameter.”
e1“soil mixed with compost”
Claim · model-written summary
Ethylene from submerged soil stimulated rice seminal root and coleoptile elongation.
- Taxon
- rice
Oryza sativae0 - Treatment
- ethylenee0
- Outcome
- Elongation of seminal root and coleoptilee0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elongation of seminal root and coleoptile in rice seedling was stimulated by ethylene which was evoluted from submerged soil.”
Claim · model-written summary
The authors inferred that soil ethylene regulates seedling growth.
- Taxon
- soybean and riceGlycine maxOryza sativat0
- Treatment
- ethylene produced from soile0
- Outcome
- growth of seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results suggest that ethylene produced from soil plays an important role for regulating the growth of seedlings.”
t0“soybean and rice”
The same questions in other papers
ethene · growth · Oryza sativa (rice)Positive and negative results
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- negative
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See all 418 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.