Abstract
The effect of numbers of Rhizobium supplied on the subsequent numbers of nodules formed was tested with Phaseolus radiatus var. aurea in water culture. Nine weeks after inoculation plants supplied with from 88,700 to 887,000 bacteria per c.c. of culture solution bore significantly more nodules than those given from 89 to 887 per c.c. An inoculum of 44,350 per c.c. produced intermediate numbers of nodules. One week after inoculation, the percentage of curled and of infected root-hairs on the seedlings was roughly proportional to the logarithm of the bacterial numbers supplied, while the numbers of nodules produced at this stage already showed a significant difference between extreme doses of inoculum. Nine weeks after inoculation the final nodule numbers were related to the percentages of curled and of infected root-hairs after one week. The final nodule numbers are related to the growth of the root system since the final number of nodules per gramme of root is independent of the initial dose of inoculum, the effect of which was mainly to cause an increase in root growth.
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Claims 7
Claim · model-written summary
Plants given 88,700 to 887,000 bacteria per c.c. formed significantly more nodules than those given 89 to 887 per c.c.
- Taxon
- Phaseolus radiatus var. aurea
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Vigna radiata var. radiatae0 - Treatment
- from 88,700 to 887,000 bacteria per c.c. of culture solutione1
- Outcome
- nodulese1
- Direction
- moree1
- Comparator
- from 89 to 887 per c.c.e1
- Setting
- water culturee0
RhizobiumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The effect of numbers of Rhizobium supplied on the subsequent numbers of nodules formed was tested with Phaseolus radiatus var. aurea in water culture”
e1“plants supplied with from 88,700 to 887,000 bacteria per c.c. of culture solution bore significantly more nodules than those given from 89 to 887 per c.c.”
Claim · model-written summary
An inoculum of 44,350 per c.c. produced intermediate numbers of nodules.
- Taxon
- Phaseolus radiatus var. aureaVigna radiata var. radiatae0
- Treatment
- An inoculum of 44,350 per c.c.e1
- Outcome
- numbers of nodulese1
- Direction
- intermediatee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of numbers of Rhizobium supplied on the subsequent numbers of nodules formed was tested with Phaseolus radiatus var. aurea in water culture”
e1“An inoculum of 44,350 per c.c. produced intermediate numbers of nodules”
Claim · model-written summary
One week after inoculation, the percentage of curled and infected root-hairs was roughly proportional to the log of the bacterial numbers supplied.
- Taxon
- Phaseolus radiatus var. aureaVigna radiata var. radiatae0
- Treatment
- bacterial numbers suppliede1
- Outcome
- percentage of curled and of infected root-hairse1
- Direction
- roughly proportionale1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of numbers of Rhizobium supplied on the subsequent numbers of nodules formed was tested with Phaseolus radiatus var. aurea in water culture”
e1“One week after inoculation, the percentage of curled and of infected root-hairs on the seedlings was roughly proportional to the logarithm of the bacterial numbers supplied”
Claim · model-written summary
One week after inoculation, nodule numbers already differed significantly between the extreme inoculum doses.
- Taxon
- Phaseolus radiatus var. aureaVigna radiata var. radiatae0
- Outcome
- numbers of nodulese1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of numbers of Rhizobium supplied on the subsequent numbers of nodules formed was tested with Phaseolus radiatus var. aurea in water culture”
e1“the numbers of nodules produced at this stage already showed a significant difference between extreme doses of inoculum”
Claim · model-written summary
Final nodule numbers were related to the percentages of curled and infected root-hairs after one week.
- Taxon
- Phaseolus radiatus var. aureaVigna radiata var. radiatae0
- Organ / stage
- root-hairse1
- Outcome
- final nodule numberse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of numbers of Rhizobium supplied on the subsequent numbers of nodules formed was tested with Phaseolus radiatus var. aurea in water culture”
e1“the final nodule numbers were related to the percentages of curled and of infected root-hairs after one week”
Claim · model-written summary
Final nodules per gramme of root were independent of the initial inoculum dose.
- Taxon
- Phaseolus radiatus var. aureaVigna radiata var. radiatae0
- Treatment
- initial dose of inoculume1
- Outcome
- final number of nodules per gramme of roote1
- Direction
- independente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of numbers of Rhizobium supplied on the subsequent numbers of nodules formed was tested with Phaseolus radiatus var. aurea in water culture”
e1“the final number of nodules per gramme of root is independent of the initial dose of inoculum”
Claim · model-written summary
The inoculum dose mainly increased root growth.
- Taxon
- Phaseolus radiatus var. aureaVigna radiata var. radiatae0
- Treatment
- initial dose of inoculume1
- Outcome
- root growthe2
- Direction
- increasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of numbers of Rhizobium supplied on the subsequent numbers of nodules formed was tested with Phaseolus radiatus var. aurea in water culture”
e1“the final number of nodules per gramme of root is independent of the initial dose of inoculum”
e2“the effect of which was mainly to cause an increase in root growth”
The same questions in other papers
inoculation · Rhizobium · Vigna radiata (mung bean)Positive and negative results
24 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
23 papers more in this group
See all 27 papers →inoculation · growth · Vigna radiata (mung bean)Positive and negative results
117 papers in the same direction as this paper · 6 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- negative
122 papers more in this group
See all 126 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.