Abstract
Legume inoculation is an established agricultural practice which has contributed to increased N2 fixation and yield. Despite this evidence there is still an ongoing debate as to whether inoculation is necessary in grain legume production. Over the period 2003-05 a series of field experiments were conducted at Lincoln University, Canterbury, New Zealand to evaluate the effect of inoculation on common bean (Phaseolus vulgaris L.) production. Two white seeded bean cultivars, Scylla and T-49, were inoculated with six strains of Rhizobium phaseoli Dangeard, CC 511, RCR 3644, UK 2, H 20, PRF 81 and PhP 17 to determine their nodulation capabilities. Nodulation was variable and appeared to be affected by cultivar and Rhizobium strain. The two planting areas used, which had similar cropping histories, gave contrasting results. In the first season (Paddock 1), when a peat based inoculum was used, no nodulation was observed. In the second season (Paddock 2) liquid inoculum was used and nodulation ranged form 0 to 7.3 nodules plant -1 at 21 days after sowing (DAS) to 0 to 75 nodules plant -1 at 70 DAS. Cultivar also significantly affected the number of nodules plant -1 ; ranging between 2-5 nodules plant -1 at 21 DAS to 18-19 nodules plant -1 at 70 DAS. Shoot dry matter (DM) over the two growing seasons ranged from 370-894 g m -2 , while green pod yield (taken at an average green seed length of 11 mm) ranged from 138 to 471 g m -2 . Total DM at final harvest ranged from 530 to 1,180 g m -2 and seed yield ranged from 266 to 635 g m -2 . Strains H 20 and PRF 81 consistently out performed the other strains in most measured parameters. The results confirm the difficulty of predicting nodulation, and question the benefits of inoculating Phaseolus beans in Canterbury.
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Claims 13
Claim · model-written summary
Nodulation varied with bean cultivar and Rhizobium strain.
- Taxon
- common bean
Phaseolus vulgarist0 - Material
- cultivare0
- Outcome
- Nodulatione0
RhizobiumNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nodulation was variable and appeared to be affected by cultivar and Rhizobium strain.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
No nodulation was observed with peat based inoculum in Paddock 1.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- peat based inoculume0
- Outcome
- nodulatione0
- Direction
- no nodulatione0
- Setting
- Paddock 1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the first season (Paddock 1), when a peat based inoculum was used, no nodulation was observed.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
With liquid inoculum in Paddock 2, nodulation ranged from 0 to 7.3 nodules per plant at 21 days after sowing.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- liquid inoculume0
- Outcome
- nodulatione0
- Value
- 0 to 7.3 nodules plant -1e0
- Qualifier
- 21 days after sowing (DAS)e0
- Setting
- Paddock 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the second season (Paddock 2) liquid inoculum was used and nodulation ranged form 0 to 7.3 nodules plant -1 at 21 days after sowing (DAS) to 0 to 75 nodules plant -1 at 70 DAS.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
With liquid inoculum in Paddock 2, nodulation ranged from 0 to 75 nodules per plant at 70 days after sowing.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- liquid inoculume0
- Outcome
- nodulatione0
- Value
- 0 to 75 nodules plant -1e0
- Qualifier
- 70 DASe0
- Setting
- Paddock 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the second season (Paddock 2) liquid inoculum was used and nodulation ranged form 0 to 7.3 nodules plant -1 at 21 days after sowing (DAS) to 0 to 75 nodules plant -1 at 70 DAS.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Cultivar significantly affected nodule number at 21 days after sowing.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Cultivare0
- Outcome
- number of nodules plant -1e0
- Value
- 2-5 nodules plant -1e0
- Qualifier
- 21 DASe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivar also significantly affected the number of nodules plant -1 ; ranging between 2-5 nodules plant -1 at 21 DAS to 18-19 nodules plant -1 at 70 DAS.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Cultivar significantly affected nodule number at 70 days after sowing.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Cultivare0
- Outcome
- number of nodules plant -1e0
- Value
- 18-19 nodules plant -1e0
- Qualifier
- 70 DASe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivar also significantly affected the number of nodules plant -1 ; ranging between 2-5 nodules plant -1 at 21 DAS to 18-19 nodules plant -1 at 70 DAS.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Shoot dry matter ranged from 370 to 894 g m -2 over two seasons.
- Taxon
- common beanPhaseolus vulgarist0
- Outcome
- Shoot dry matter (DM)e0
- Value
- 370-894 g m -2e0
- Qualifier
- two growing seasonse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot dry matter (DM) over the two growing seasons ranged from 370-894 g m -2”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Green pod yield ranged from 138 to 471 g m -2.
- Taxon
- common beanPhaseolus vulgarist0
- Outcome
- green pod yielde0
- Value
- 138 to 471 g m -2e0
- Qualifier
- average green seed length of 11 mme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“green pod yield (taken at an average green seed length of 11 mm) ranged from 138 to 471 g m -2”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Total dry matter at final harvest ranged from 530 to 1,180 g m -2.
- Taxon
- common beanPhaseolus vulgarist0
- Outcome
- Total DMe0
- Value
- 530 to 1,180 g m -2e0
- Qualifier
- final harveste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total DM at final harvest ranged from 530 to 1,180 g m -2”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Seed yield ranged from 266 to 635 g m -2.
- Taxon
- common beanPhaseolus vulgarist0
- Outcome
- seed yielde0
- Value
- 266 to 635 g m -2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed yield ranged from 266 to 635 g m -2”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Rhizobium strain H 20 outperformed the other strains on most measured parameters.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- H 20e0
- Interactor
- H 20e0symbiont
- Outcome
- most measured parameterse0
- Direction
- out performede0
- Comparator
- other strainse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strains H 20 and PRF 81 consistently out performed the other strains in most measured parameters.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Rhizobium strain PRF 81 outperformed the other strains on most measured parameters.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- PRF 81e0
- Interactor
- PRF 81e0symbiont
- Outcome
- most measured parameterse0
- Direction
- out performede0
- Comparator
- other strainse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strains H 20 and PRF 81 consistently out performed the other strains in most measured parameters.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
The authors question the benefit of inoculating Phaseolus beans in Canterbury.
Verbatim
e0“The results confirm the difficulty of predicting nodulation, and question the benefits of inoculating Phaseolus beans in Canterbury.”
The same questions in other papers
inoculation · symbiosis · Phaseolus vulgaris (common bean)Positive and negative results
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See all 90 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.