Abstract
During the process of swelling pea seeds yielded substances to water which were capable of dissolving the insoluble copper dressings normally applied to the seed to prevent ‘pre‐emergence damping off’. This occurred under conditions in which soil factors were eliminated and irrespective of whether the dressing was on the surface of the seed or treated separately. Copper was readily taken into solution from dried 4:4:50 Bordeaux Mixture by water in which peas had been soaked, a circumstance which proved that the formation of soluble complex forms of copper was involved. A chemical investigation on the solution obtained by soaking peas in water showed that volatile acids or their salts were present together with a protein‐like material in colloidal solution. The occurrence of amino derivatives and other nitrogenous materials as well as carbohydrates was indicated and evidence of the presence of asparagine and citrate was also obtained. The suggestion is made that both the fungicidal and phytocidal actions of insoluble copper dressings on pea seed depend largely on the effect of the pea seed exudates, notably colloidal protein‐like material and certain amino derivatives, in bringing copper into solution.
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Claims 8
Claim · model-written summary
Swelling pea seeds released substances that dissolved insoluble copper dressings.
- Taxon
- pea
Lathyrus oleraceuse0 - Organ / stage
- seedse0
- Outcome
- substances to water which were capable of dissolving the insoluble copper dressingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the process of swelling pea seeds yielded substances to water which were capable of dissolving the insoluble copper dressings normally applied to the seed to prevent ‘pre‐emergence damping off’.”
Claim · model-written summary
Dissolution occurred without soil factors and with dressing on or separate from seeds.
- Taxon
- peaLathyrus oleraceust0
- Outcome
- This occurrede0
- Qualifier
- soil factors were eliminated and irrespective of whether the dressing was on the surface of the seed or treated separatelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This occurred under conditions in which soil factors were eliminated and irrespective of whether the dressing was on the surface of the seed or treated separately.”
t0“pea seed”
Claim · model-written summary
Pea soaking water dissolved copper from dried Bordeaux mixture.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- dried 4:4:50 Bordeaux Mixturee0
- Outcome
- Copper was readily taken into solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Copper was readily taken into solution from dried 4:4:50 Bordeaux Mixture by water in which peas had been soaked”
Claim · model-written summary
Pea soaking solution contained volatile acids or salts and colloidal protein-like material.
- Taxon
- peaLathyrus oleraceust0
- Outcome
- volatile acids or their salts were present together with a protein‐like material in colloidal solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“volatile acids or their salts were present together with a protein‐like material in colloidal solution.”
t0“pea seed”
Claim · model-written summary
Amino derivatives and other nitrogenous materials were indicated in the soaking solution.
- Taxon
- peaLathyrus oleraceust0
- Outcome
- occurrence of amino derivatives and other nitrogenous materialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The occurrence of amino derivatives and other nitrogenous materials as well as carbohydrates was indicated”
t0“pea seed”
Claim · model-written summary
Carbohydrates were indicated in the soaking solution.
- Taxon
- peaLathyrus oleraceust0
- Outcome
- carbohydrates was indicatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The occurrence of amino derivatives and other nitrogenous materials as well as carbohydrates was indicated”
t0“pea seed”
Claim · model-written summary
Evidence indicated asparagine and citrate in the soaking solution.
- Taxon
- peaLathyrus oleraceust0
- Outcome
- presence of asparagine and citratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evidence of the presence of asparagine and citrate was also obtained.”
t0“pea seed”
Claim · model-written summary
Authors proposed seed exudates as the basis of fungicidal and phytocidal action of copper dressings.
- Taxon
- peaLathyrus oleraceuse0
- Outcome
- fungicidal and phytocidal actions of insoluble copper dressingse0
- Qualifier
- pea seed exudates, notably colloidal protein‐like material and certain amino derivativese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both the fungicidal and phytocidal actions of insoluble copper dressings on pea seed depend largely on the effect of the pea seed exudates, notably colloidal protein‐like material and certain amino derivatives, in bringing copper into solution.”