Abstract
In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution. This paper refers to its actual conditions and the result of leaf analysis of the affected trees.1. Most of suffered leaves presented the symptom of SO2 injury showing the smoky spots, and some of them expressed the symptom of sulfuric acid mist injury having the small poxlike spots. Besides, some of leaves shed down rapidly without showing any of diseased spots.2. Soil acidity in the affected orchard was much greater at the 10cm-deep than at 30cm-deep layer. However, no significant correlation was found between the soil pH and the SO2 concentration in atmosphere, its coefficient (r) being -0.2.3. S content of leaves in the affected orchard was generally high, and it was highly correlated with SO2 concentration in atmosphere. The correlation coefficients between them in July and September of 1963, and January of 1964 were +0.85, +0.78 and +0.79, respectively. S content of leaves increased with their age from July of 1963 to January of 1964. Its increasing rate was greatest when the SO2 gas flowed in the orchard.4. High negative correlation existed between S and Ca contents of leaves, having the coefficient(r) of -0.67. K and Mn contents of leaves increased as S content of leaves increased, though no significant correlation was found. N, P and Mg contents of leaves had no connection with S content of leaves.Thus, the composition of nutritional elements in suffered Satsuma orange trees seems to be much affected directly or indirectly by the SO2 concentration in atmosphere.
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Claims 14
Claim · model-written summary
Affected leaves commonly showed smoky spots of SO2 injury.
- Taxon
- Satsuma orange trees
Citrus unshiue1 - Organ / stage
- leavese0
- Outcome
- SO2 injury showing the smoky spotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most of suffered leaves presented the symptom of SO2 injury showing the smoky spots”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Some affected leaves showed small poxlike spots of sulfuric acid mist injury.
- Taxon
- Satsuma orange treesCitrus unshiue1
- Outcome
- sulfuric acid mist injury having the small poxlike spotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“some of them expressed the symptom of sulfuric acid mist injury having the small poxlike spots”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Some leaves shed rapidly without visible disease spots.
- Taxon
- Satsuma orange treesCitrus unshiue1
- Outcome
- leaves shed down rapidly without showing any of diseased spotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“some of leaves shed down rapidly without showing any of diseased spots”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Soil acidity was greater at 10 cm than at 30 cm in the affected orchard.
Not reportedTaxon
Verbatim
e0“Soil acidity in the affected orchard was much greater at the 10cm-deep than at 30cm-deep layer.”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Soil pH was not significantly correlated with atmospheric SO2 concentration (r = -0.2).
- Outcome
- soil pHe0
- Value
- -0.2e0
- Qualifier
- SO2 concentration in atmospheree0
- Setting
- Shimotsu district of Wakayama prefecturee1
Not reportedTaxonDirection
Verbatim
e0“no significant correlation was found between the soil pH and the SO2 concentration in atmosphere, its coefficient (r) being -0.2.”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Leaf S content was generally high in the affected orchard.
- Taxon
- Satsuma orange treesCitrus unshiue1
- Organ / stage
- leavese0
- Outcome
- S content of leavese0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S content of leaves in the affected orchard was generally high”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Leaf S content was strongly correlated with atmospheric SO2 in July 1963, with r = +0.85.
- Taxon
- Satsuma orange treesCitrus unshiue1
- Outcome
- correlation coefficientse0
- Value
- +0.85e0
- Qualifier
- Julye0
- Setting
- Shimotsu district of Wakayama prefecturee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The correlation coefficients between them in July and September of 1963, and January of 1964 were +0.85, +0.78 and +0.79, respectively.”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Leaf S content was strongly correlated with atmospheric SO2 in September 1963, with r = +0.78.
- Taxon
- Satsuma orange treesCitrus unshiue1
- Outcome
- correlation coefficientse0
- Value
- +0.78e0
- Qualifier
- Septembere0
- Setting
- Shimotsu district of Wakayama prefecturee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The correlation coefficients between them in July and September of 1963, and January of 1964 were +0.85, +0.78 and +0.79, respectively.”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Leaf S content was strongly correlated with atmospheric SO2 in January 1964, with r = +0.79.
- Taxon
- Satsuma orange treesCitrus unshiue1
- Outcome
- correlation coefficientse0
- Value
- +0.79e0
- Qualifier
- January of 1964e0
- Setting
- Shimotsu district of Wakayama prefecturee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The correlation coefficients between them in July and September of 1963, and January of 1964 were +0.85, +0.78 and +0.79, respectively.”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Leaf S content increased with leaf age.
- Taxon
- Satsuma orange treesCitrus unshiue1
- Organ / stage
- leavese0
- Outcome
- S content of leavese0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S content of leaves increased with their age from July of 1963 to January of 1964.”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
The rise in leaf S content was greatest when SO2 gas flowed into the orchard.
- Taxon
- Satsuma orange treesCitrus unshiue1
- Outcome
- increasing ratee0
- Direction
- greateste0
- Setting
- orcharde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Its increasing rate was greatest when the SO2 gas flowed in the orchard.”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Leaf S and Ca contents were negatively correlated (r = -0.67).
- Taxon
- Satsuma orange treesCitrus unshiue1
- Compound
- Se0
- Outcome
- Ca contents of leavese0
- Direction
- negativee0
- Value
- -0.67e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High negative correlation existed between S and Ca contents of leaves, having the coefficient(r) of -0.67.”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Leaf K and Mn content rose with leaf S content, without significant correlation.
- Taxon
- Satsuma orange treesCitrus unshiue1
- Compound
- Se0
- Outcome
- K and Mn contents of leavese0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K and Mn contents of leaves increased as S content of leaves increased, though no significant correlation was found.”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”
Claim · model-written summary
Leaf N, P and Mg contents had no relation to leaf S content.
- Taxon
- Satsuma orange treesCitrus unshiue1
- Compound
- Se0
- Outcome
- N, P and Mg contents of leavese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N, P and Mg contents of leaves had no connection with S content of leaves.”
e1“In 1961 and 1962, Satsuma orange trees grown in Shimotsu district of Wakayama prefecture suffered greatly from smoke pollution.”