Abstract
This experiment was carried out at the fields of the Department of Horticulture and Landscape Gardening, College of Agriculture, University of Baghdad, during the spring season of 2015 to study the effect of nitrogen fixing bacterial bio-fertilizers including Rhizobium phaseoli, Azotobacter chroococcum, and Azospirillum brasilense and molybdenum on growth and yield of green beans. The experiment was conducted according to the randomized complete block design (RCBD) with three replications each included 11 treatments represent the interactions between nitrogen fixing bacteria strains, molybdenum solo application, molybdenum and bacteria strains interactions, in addition to the recommended nitrogen application and control treatment. Results were analyzed using the least significant differences (LSD) test at 5% level of significance. Results showed significant effect of the treatment that included all bacteria strains and Mo (T11) on increasing plant macro elements (N, P, and K) which gave 2.39%, 0.49%, and 2.92%, respectively and Fe and Mo concentrations of 269.67 mg.L-1 and 0.69 mg.L-1, respectively and protein percentage in the pods of 13.98%. in addition, treatment of both R. phaseoli and A. chroococcum (T5) gave the most significant main root length of 36.56 cm while R. phaseoli and A. chroococcum and Mo (T9) gave the largest root surface area of 115.00 cm2 and the highest number of root nods that reached 5.33 nod.plant-1. Moreover, T5 significantly increased plant height, leaf number, shoot dry weight, and pod’s length that reached 54.67 cm, 30.22 leaf.plant-1, 65.56 g.plant-1, and 13.62 cm, respectively. As for the T9, results showed significant increase in the number of pods per plant and plant yield of 51.61 pod.plant-1 and 262.03 g.plant-1, respectively.
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Claims 15
Claim · model-written summary
All bacterial strains with Mo increased plant nitrogen concentration to 2.39%.
- Taxon
- GREEN BEANt0
- Treatment
- all bacteria strains and Mo (T11)e0
- Outcome
- Ne0
- Direction
- increasinge0
- Value
- 2.39%e0
Not reportedComparator
Verbatim
e0“treatment that included all bacteria strains and Mo (T11) on increasing plant macro elements (N, P, and K) which gave 2.39%, 0.49%, and 2.92%, respectively”
t0“GREEN BEAN”
Claim · model-written summary
T11 increased phosphorus concentration to 0.49%.
- Taxon
- GREEN BEANt0
- Treatment
- all bacteria strains and Mo (T11)e0
- Outcome
- Pe0
- Direction
- increasinge0
- Value
- 0.49%e0
Not reportedComparator
Verbatim
e0“treatment that included all bacteria strains and Mo (T11) on increasing plant macro elements (N, P, and K) which gave 2.39%, 0.49%, and 2.92%, respectively”
t0“GREEN BEAN”
Claim · model-written summary
T11 increased potassium concentration to 2.92%.
- Taxon
- GREEN BEANt0
- Treatment
- all bacteria strains and Mo (T11)e0
- Outcome
- Ke0
- Direction
- increasinge0
- Value
- 2.92%e0
Not reportedComparator
Verbatim
e0“treatment that included all bacteria strains and Mo (T11) on increasing plant macro elements (N, P, and K) which gave 2.39%, 0.49%, and 2.92%, respectively”
t0“GREEN BEAN”
Claim · model-written summary
T11 gave Fe concentration of 269.67 mg.L-1.
Verbatim
e0“Fe and Mo concentrations of 269.67 mg.L-1 and 0.69 mg.L-1, respectively”
t0“GREEN BEAN”
Claim · model-written summary
T11 gave Mo concentration of 0.69 mg.L-1.
Verbatim
e0“Fe and Mo concentrations of 269.67 mg.L-1 and 0.69 mg.L-1, respectively”
t0“GREEN BEAN”
Claim · model-written summary
T11 gave pod protein percentage of 13.98%.
Verbatim
e0“protein percentage in the pods of 13.98%”
t0“GREEN BEAN”
Claim · model-written summary
T5 produced the greatest main root length, 36.56 cm.
- Taxon
- GREEN BEANt0
- Treatment
- both R. phaseoli and A. chroococcum (T5)e0
- Outcome
- main root lengthe0
- Direction
- most significante0
- Value
- 36.56 cme0
Not reportedComparator
Verbatim
e0“both R. phaseoli and A. chroococcum (T5) gave the most significant main root length of 36.56 cm”
t0“GREEN BEAN”
Claim · model-written summary
T9 produced the largest root surface area, 115.00 cm2.
- Taxon
- GREEN BEANt0
- Treatment
- R. phaseoli and A. chroococcum and Mo (T9)e0
- Outcome
- root surface areae0
- Direction
- largeste0
- Value
- 115.00 cm2e0
Not reportedComparator
Verbatim
e0“R. phaseoli and A. chroococcum and Mo (T9) gave the largest root surface area of 115.00 cm2”
t0“GREEN BEAN”
Claim · model-written summary
T9 produced the highest root nodule number, 5.33 nod.plant-1.
Not reportedTreatmentComparator
Verbatim
e0“the highest number of root nods that reached 5.33 nod.plant-1”
t0“GREEN BEAN”
Claim · model-written summary
T5 increased plant height to 54.67 cm.
Not reportedComparator
Verbatim
e0“T5 significantly increased plant height, leaf number, shoot dry weight, and pod’s length that reached 54.67 cm, 30.22 leaf.plant-1, 65.56 g.plant-1, and 13.62 cm, respectively”
t0“GREEN BEAN”
Claim · model-written summary
T5 increased leaf number to 30.22 leaf.plant-1.
Not reportedComparator
Verbatim
e0“T5 significantly increased plant height, leaf number, shoot dry weight, and pod’s length that reached 54.67 cm, 30.22 leaf.plant-1, 65.56 g.plant-1, and 13.62 cm, respectively”
t0“GREEN BEAN”
Claim · model-written summary
T5 increased shoot dry weight to 65.56 g.plant-1.
Not reportedComparator
Verbatim
e0“T5 significantly increased plant height, leaf number, shoot dry weight, and pod’s length that reached 54.67 cm, 30.22 leaf.plant-1, 65.56 g.plant-1, and 13.62 cm, respectively”
t0“GREEN BEAN”
Claim · model-written summary
T5 increased pod length to 13.62 cm.
Not reportedComparator
Verbatim
e0“T5 significantly increased plant height, leaf number, shoot dry weight, and pod’s length that reached 54.67 cm, 30.22 leaf.plant-1, 65.56 g.plant-1, and 13.62 cm, respectively”
t0“GREEN BEAN”
Claim · model-written summary
T9 increased pods per plant to 51.61 pod.plant-1.
- Taxon
- GREEN BEANt0
- Treatment
- T9e0
- Outcome
- number of pods per plante0
- Direction
- increasee0
- Value
- 51.61 pod.plant-1e0
Not reportedComparator
Verbatim
e0“T9, results showed significant increase in the number of pods per plant and plant yield of 51.61 pod.plant-1 and 262.03 g.plant-1, respectively”
t0“GREEN BEAN”
Claim · model-written summary
T9 increased plant yield to 262.03 g.plant-1.
Not reportedComparator
Verbatim
e0“T9, results showed significant increase in the number of pods per plant and plant yield of 51.61 pod.plant-1 and 262.03 g.plant-1, respectively”
t0“GREEN BEAN”
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