Abstract
Rhizobium inoculation has successfully been used for improving growth and yield of legume crops in different parts of the world. L-Tryptophan (L-TRP) application may further improve its effectiveness due to substrate-dependent inoculum-derived auxins in the rhizosphere. Rhizobium phaseoli strains were isolated using dilution plate technique from the mung bean nodules. Auxin biosynthesis by these rhizobial isolates was determined in the absence and presence of L-TRP, a physiological precursor of auxins. Rhizobial isolates varied widely in auxins biosynthesis capabilities and N42 being the highest auxin producer strain was further evaluated in the presence of different levels of L-TRP (10 -3 , 10 -4 and 10 -5 M) for improving the growth and yield of mung bean. Mung bean seeds were inoculated with peat-based inoculum and sown following randomized complete block design with four replications. Fertilizers, NP were applied at 30-60 kg ha -1 as urea and single super phosphate (SSP) in all plots. Results revealed that L-TRP (10 -4 and 10 -5 M) and rhizobial inoculation when applied alone significantly increased the growth and yield of mung bean compared to untreated control. However, Rhizobium inoculation supplemented with L-TRP (10 -4 M) gave the most promising results and significantly increased the plant height, number of nodules plant -1 , nodular mass plant -1 , number of grains pod -1 , number of pods plant -1 , total plant biomass, grain yield and 1000-grain weight up to 28, 80, 77, 46, 54, 58, 57 and 17%, respectively compared to uninoculated control. Similarly, N concentration in grains also increased significantly at this LTRP level by the rhizobial inoculation. The results imply that supplementing rhizobial inoculation with L-TRP could be a useful approach for improving growth, nodulation and yield of mung bean.
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Claims 13
Claim · model-written summary
Rhizobial isolates varied in auxin biosynthesis; N42 produced the most.
- Taxon
- mung bean
.jpg?width=60)
Vigna radiatat0 - Outcome
- auxins biosynthesis capabilitiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Rhizobial isolates varied widely in auxins biosynthesis capabilities and N42 being the highest auxin producer strain”
t0“MUNGBEAN”
Claim · model-written summary
L-TRP alone significantly increased mung bean growth and yield.
- Taxon
- mung beanVigna radiatae0
- Treatment
- L-TRP (10 -4 and 10 -5 M)e0
- Outcome
- growth and yielde0
- Direction
- increasede0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L-TRP (10 -4 and 10 -5 M) and rhizobial inoculation when applied alone significantly increased the growth and yield of mung bean compared to untreated control.”
Claim · model-written summary
Rhizobial inoculation alone significantly increased growth and yield.
- Taxon
- mung beanVigna radiatae0
- Treatment
- rhizobial inoculatione0
- Outcome
- growth and yielde0
- Direction
- increasede0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L-TRP (10 -4 and 10 -5 M) and rhizobial inoculation when applied alone significantly increased the growth and yield of mung bean compared to untreated control.”
Claim · model-written summary
Combined inoculation and L-TRP increased plant height by 28%.
- Taxon
- mung beanVigna radiatat0
- Treatment
- Rhizobium inoculation supplemented with L-TRP (10 -4 M)e0
- Outcome
- plant heighte0
- Direction
- increasede0
- Comparator
- uninoculated controle0
RhizobiumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium inoculation supplemented with L-TRP (10 -4 M) gave the most promising results and significantly increased the plant height, number of nodules plant -1 , nodular mass plant -1 , number of grains pod -1 , number of pods plant -1 , total plant biomass, grain yield and 1000-grain weight up to 28, 80, 77, 46, 54, 58, 57 and 17%, respectively compared to uninoculated control.”
t0“MUNGBEAN”
Claim · model-written summary
Combined inoculation and L-TRP increased number of nodules plant -1 by 80%.
- Taxon
- mung beanVigna radiatat0
- Treatment
- Rhizobium inoculation supplemented with L-TRP (10 -4 M)e0
- Outcome
- number of nodules plant -1e0
- Direction
- increasede0
- Comparator
- uninoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium inoculation supplemented with L-TRP (10 -4 M) gave the most promising results and significantly increased the plant height, number of nodules plant -1 , nodular mass plant -1 , number of grains pod -1 , number of pods plant -1 , total plant biomass, grain yield and 1000-grain weight up to 28, 80, 77, 46, 54, 58, 57 and 17%, respectively compared to uninoculated control.”
t0“MUNGBEAN”
Claim · model-written summary
Combined inoculation and L-TRP increased nodular mass plant -1 by 77%.
- Taxon
- mung beanVigna radiatat0
- Treatment
- Rhizobium inoculation supplemented with L-TRP (10 -4 M)e0
- Outcome
- nodular mass plant -1e0
- Direction
- increasede0
- Comparator
- uninoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium inoculation supplemented with L-TRP (10 -4 M) gave the most promising results and significantly increased the plant height, number of nodules plant -1 , nodular mass plant -1 , number of grains pod -1 , number of pods plant -1 , total plant biomass, grain yield and 1000-grain weight up to 28, 80, 77, 46, 54, 58, 57 and 17%, respectively compared to uninoculated control.”
t0“MUNGBEAN”
Claim · model-written summary
Combined inoculation and L-TRP increased number of grains pod -1 by 46%.
- Taxon
- mung beanVigna radiatat0
- Treatment
- Rhizobium inoculation supplemented with L-TRP (10 -4 M)e0
- Outcome
- number of grains pod -1e0
- Direction
- increasede0
- Comparator
- uninoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium inoculation supplemented with L-TRP (10 -4 M) gave the most promising results and significantly increased the plant height, number of nodules plant -1 , nodular mass plant -1 , number of grains pod -1 , number of pods plant -1 , total plant biomass, grain yield and 1000-grain weight up to 28, 80, 77, 46, 54, 58, 57 and 17%, respectively compared to uninoculated control.”
t0“MUNGBEAN”
Claim · model-written summary
Combined inoculation and L-TRP increased number of pods plant -1 by 54%.
- Taxon
- mung beanVigna radiatat0
- Treatment
- Rhizobium inoculation supplemented with L-TRP (10 -4 M)e0
- Outcome
- number of pods plant -1e0
- Direction
- increasede0
- Comparator
- uninoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium inoculation supplemented with L-TRP (10 -4 M) gave the most promising results and significantly increased the plant height, number of nodules plant -1 , nodular mass plant -1 , number of grains pod -1 , number of pods plant -1 , total plant biomass, grain yield and 1000-grain weight up to 28, 80, 77, 46, 54, 58, 57 and 17%, respectively compared to uninoculated control.”
t0“MUNGBEAN”
Claim · model-written summary
Combined inoculation and L-TRP increased total plant biomass by 58%.
- Taxon
- mung beanVigna radiatat0
- Treatment
- Rhizobium inoculation supplemented with L-TRP (10 -4 M)e0
- Outcome
- total plant biomasse0
- Direction
- increasede0
- Comparator
- uninoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium inoculation supplemented with L-TRP (10 -4 M) gave the most promising results and significantly increased the plant height, number of nodules plant -1 , nodular mass plant -1 , number of grains pod -1 , number of pods plant -1 , total plant biomass, grain yield and 1000-grain weight up to 28, 80, 77, 46, 54, 58, 57 and 17%, respectively compared to uninoculated control.”
t0“MUNGBEAN”
Claim · model-written summary
Combined inoculation and L-TRP increased grain yield by 57%.
- Taxon
- mung beanVigna radiatat0
- Treatment
- Rhizobium inoculation supplemented with L-TRP (10 -4 M)e0
- Outcome
- grain yielde0
- Direction
- increasede0
- Comparator
- uninoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium inoculation supplemented with L-TRP (10 -4 M) gave the most promising results and significantly increased the plant height, number of nodules plant -1 , nodular mass plant -1 , number of grains pod -1 , number of pods plant -1 , total plant biomass, grain yield and 1000-grain weight up to 28, 80, 77, 46, 54, 58, 57 and 17%, respectively compared to uninoculated control.”
t0“MUNGBEAN”
Claim · model-written summary
Combined inoculation and L-TRP increased 1000-grain weight by 17%.
- Taxon
- mung beanVigna radiatat0
- Treatment
- Rhizobium inoculation supplemented with L-TRP (10 -4 M)e0
- Outcome
- 1000-grain weighte0
- Direction
- increasede0
- Comparator
- uninoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium inoculation supplemented with L-TRP (10 -4 M) gave the most promising results and significantly increased the plant height, number of nodules plant -1 , nodular mass plant -1 , number of grains pod -1 , number of pods plant -1 , total plant biomass, grain yield and 1000-grain weight up to 28, 80, 77, 46, 54, 58, 57 and 17%, respectively compared to uninoculated control.”
t0“MUNGBEAN”
Claim · model-written summary
Combined inoculation significantly increased grain N concentration.
- Taxon
- mung beanVigna radiatat0
- Treatment
- rhizobial inoculatione0
- Outcome
- N concentration in grainse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N concentration in grains also increased significantly at this LTRP level by the rhizobial inoculation.”
t0“MUNGBEAN”
Claim · model-written summary
Authors proposed supplementing rhizobial inoculation with L-TRP.
- Taxon
- mung beanVigna radiatae0
- Outcome
- supplementing rhizobial inoculation with L-TRPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“supplementing rhizobial inoculation with L-TRP could be a useful approach for improving growth, nodulation and yield of mung bean”
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