Abstract
Using soybean variety Norin No. 2 grown under light and heavy manuring condition by pot culture, exudation was investigated under three levels of soil moisture content (Fig. 1). Soybeans were planted on May 25, and these plants were treated with dry, medium and wet soil conditions from June 22 to July 6. Except the treatment periods, they were maintained under medium soil moisture condition. The exudates were taken from detopped plants at several growing stages, and determined their volume and several inorganic components. The results obtained were summarized as follows; 1) Concerning the exudation power of soybean varies at each growing stage. In early vegetative stage, it gradually increases, and in the flower initiation stage, it shows maximum value, but thereafter it gradually decreases (Fig. 3). 2) In plants treated with dry soil condition the exudating power shows remarkable small value, but it recovers in comparatively short period when the plants were return to the medium soil moisture condition. While in plants treated with wet soil condition it does not show and distinct change (Fig. 3). 3) The exudating power of soybean plants is approximately parallel with the function of the root respiration, if these plants were at the same growing stage, or were grown under the same soil moisture condition (Table 3 & Fig. 6). 4) The concentration of each inorganic component in exudate is higher in plants treated with dry soil condition, but it is somewhat lower in plants treated with wet soil condition than with medium soil moisture condition (Table 1 & 2). By reason of difference in amount of exudate between soil moisture treatments, it is considered that the whole quantities of each nutrient translocated to top are decreased by dry treatment, while no decrease is occurred in wet treatment. 5) In the plants grown in heavy manuring condition, the root contains more amount of protein-N (Fig. 5), the respiration of root is more active (Fig. 4), the amount of exudate is more abundant (Fig. 3), the concentration of NH4-N, P, K and Mg in exudate is higher (Table 1 & 2) and the growth of top and root is more vigorous than in the plants grown in light manuring condition. Such heavy manuring condition in soybean plant will be efficient to lighten the drought damage, to hasten the recovery from such damage, and moreover to change the weak growth brought by wet soil condition to vigorous growth.
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Claims 17
Claim · model-written summary
Soybean exudation power gradually increases in the early vegetative stage.
- Taxon
- Soybean
Glycine maxt0 - Organ / stage
- early vegetative stagee1
- Outcome
- exudation powere0
- Direction
- gradually increasese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e0“Concerning the exudation power of soybean varies at each growing stage”
e1“In early vegetative stage, it gradually increases, and in the flower initiation stage, it shows maximum value, but thereafter it gradually decreases”
Claim · model-written summary
Soybean exudation power reaches its maximum at the flower initiation stage.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- flower initiation stagee1
- Outcome
- exudation powere0
- Direction
- maximume1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e0“Concerning the exudation power of soybean varies at each growing stage”
e1“In early vegetative stage, it gradually increases, and in the flower initiation stage, it shows maximum value, but thereafter it gradually decreases”
Claim · model-written summary
Soybean exudation power gradually decreases after the flower initiation stage.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- flower initiation stagee1
- Outcome
- exudation powere0
- Direction
- gradually decreasese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e0“Concerning the exudation power of soybean varies at each growing stage”
e1“In early vegetative stage, it gradually increases, and in the flower initiation stage, it shows maximum value, but thereafter it gradually decreases”
Claim · model-written summary
Dry soil condition markedly reduced soybean exudating power.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- dry soil conditione2
- Outcome
- exudating powere2
- Direction
- decreaseinferrede2
- Comparator
- medium soil moisture conditione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e2“In plants treated with dry soil condition the exudating power shows remarkable small value, but it recovers in comparatively short period when the plants were return to the medium soil moisture condition”
Claim · model-written summary
Exudating power recovered in a short period after plants were returned to medium soil moisture.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- return to the medium soil moisture conditione2
- Outcome
- exudating powere2
- Direction
- recoverse2
- Comparator
- dry soil conditione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e2“In plants treated with dry soil condition the exudating power shows remarkable small value, but it recovers in comparatively short period when the plants were return to the medium soil moisture condition”
Claim · model-written summary
Soybean exudating power is approximately parallel with root respiration at the same growing stage or soil moisture.
- Taxon
- soybeanGlycine maxe4
- Outcome
- exudating powere4
- Direction
- approximately parallele4
- Comparator
- function of the root respiratione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The exudating power of soybean plants is approximately parallel with the function of the root respiration, if these plants were at the same growing stage, or were grown under the same soil moisture condition”
Claim · model-written summary
Dry soil condition increased the concentration of each inorganic component in exudate.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- dry soil conditione5
- Outcome
- concentration of each inorganic component in exudatee5
- Direction
- highere5
- Comparator
- medium soil moisture conditione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e5“The concentration of each inorganic component in exudate is higher in plants treated with dry soil condition, but it is somewhat lower in plants treated with wet soil condition than with medium soil moisture condition”
Claim · model-written summary
Wet soil condition somewhat lowered the concentration of each inorganic component in exudate.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- wet soil conditione5
- Outcome
- concentration of each inorganic component in exudatee5
- Direction
- somewhat lowere5
- Comparator
- medium soil moisture conditione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e5“The concentration of each inorganic component in exudate is higher in plants treated with dry soil condition, but it is somewhat lower in plants treated with wet soil condition than with medium soil moisture condition”
Claim · model-written summary
Dry treatment is considered to decrease the whole quantities of each nutrient translocated to the top.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- dry treatmente6
- Outcome
- whole quantities of each nutrient translocated to tope6
- Direction
- decreasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e6“it is considered that the whole quantities of each nutrient translocated to top are decreased by dry treatment, while no decrease is occurred in wet treatment”
Claim · model-written summary
Wet treatment is considered to cause no decrease in the whole quantities of each nutrient translocated to the top.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- wet treatmente6
- Outcome
- whole quantities of each nutrient translocated to tope6
- Direction
- no decreasee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e6“it is considered that the whole quantities of each nutrient translocated to top are decreased by dry treatment, while no decrease is occurred in wet treatment”
Claim · model-written summary
Heavy manuring increased protein-N in the roots compared with light manuring.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- roote7
- Treatment
- heavy manuring conditione7
- Outcome
- protein-Ne7
- Direction
- moree7
- Comparator
- light manuring conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e7“In the plants grown in heavy manuring condition, the root contains more amount of protein-N (Fig. 5), the respiration of root is more active (Fig. 4), the amount of exudate is more abundant (Fig. 3), the concentration of NH4-N, P, K and Mg in exudate is higher (Table 1 & 2) and the growth of top and root is more vigorous than in the plants grown in light manuring condition”
Claim · model-written summary
Heavy manuring made root respiration more active than light manuring.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- heavy manuring conditione7
- Outcome
- respiration of roote7
- Direction
- more activee7
- Comparator
- light manuring conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e7“In the plants grown in heavy manuring condition, the root contains more amount of protein-N (Fig. 5), the respiration of root is more active (Fig. 4), the amount of exudate is more abundant (Fig. 3), the concentration of NH4-N, P, K and Mg in exudate is higher (Table 1 & 2) and the growth of top and root is more vigorous than in the plants grown in light manuring condition”
Claim · model-written summary
Heavy manuring increased the amount of exudate compared with light manuring.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- heavy manuring conditione7
- Outcome
- amount of exudatee7
- Direction
- more abundante7
- Comparator
- light manuring conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e7“In the plants grown in heavy manuring condition, the root contains more amount of protein-N (Fig. 5), the respiration of root is more active (Fig. 4), the amount of exudate is more abundant (Fig. 3), the concentration of NH4-N, P, K and Mg in exudate is higher (Table 1 & 2) and the growth of top and root is more vigorous than in the plants grown in light manuring condition”
Claim · model-written summary
Heavy manuring increased the concentrations of NH4-N, P, K and Mg in exudate compared with light manuring.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- heavy manuring conditione7
- Outcome
- concentration of NH4-N, P, K and Mg in exudatee7
- Direction
- highere7
- Comparator
- light manuring conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e7“In the plants grown in heavy manuring condition, the root contains more amount of protein-N (Fig. 5), the respiration of root is more active (Fig. 4), the amount of exudate is more abundant (Fig. 3), the concentration of NH4-N, P, K and Mg in exudate is higher (Table 1 & 2) and the growth of top and root is more vigorous than in the plants grown in light manuring condition”
Claim · model-written summary
Heavy manuring made top and root growth more vigorous than light manuring.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- heavy manuring conditione7
- Outcome
- growth of top and roote7
- Direction
- more vigorouse7
- Comparator
- light manuring conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exudation of Soybean”
e7“In the plants grown in heavy manuring condition, the root contains more amount of protein-N (Fig. 5), the respiration of root is more active (Fig. 4), the amount of exudate is more abundant (Fig. 3), the concentration of NH4-N, P, K and Mg in exudate is higher (Table 1 & 2) and the growth of top and root is more vigorous than in the plants grown in light manuring condition”
Claim · model-written summary
Heavy manuring is expected to lighten drought damage in soybean.
- Taxon
- soybeanGlycine maxe7
- Treatment
- heavy manuring conditione7
- Outcome
- lighten the drought damagee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Such heavy manuring condition in soybean plant will be efficient to lighten the drought damage, to hasten the recovery from such damage, and moreover to change the weak growth brought by wet soil condition to vigorous growth”
Claim · model-written summary
Heavy manuring is expected to change weak growth under wet soil into vigorous growth in soybean.
- Taxon
- soybeanGlycine maxe7
- Treatment
- heavy manuring conditione7
- Outcome
- change the weak growth brought by wet soil condition to vigorous growthe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Such heavy manuring condition in soybean plant will be efficient to lighten the drought damage, to hasten the recovery from such damage, and moreover to change the weak growth brought by wet soil condition to vigorous growth”
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