Abstract
Ten Azotobacter cultures were isolated from the maize rhizosphere and their auxin producing ability was measured colourimetrically. The auxin production by three efficient Azotobacter cultures (Z1, Z3, Z4) was also measured in the presence of filter sterilized L-tryptophan (at 10G 3 , 10G 4 and 10G 5 M). Azotobacter culture Z4 gave relatively higher auxin production and was selected for further experiments. Azotobacter inoculation in combination with 10G 4 M L-TRP gave maximum length and weight of maize roots, which was 117 and 60 percent higher than control, respectively. Leonard Jar experiments were conducted to study the response of shoot growth to Azotobacter inoculation and L-TRP application at 10G 4 M separately and in combination with each other. Results showed that maximum length and weight of shoots were recorded by applying Azotobacter in combination with 10G 4 M L-TRP which was 45.3 and 36.5 percent higher than control, respectively. The possible mechanisms of action are discussed.
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Claims 5
Claim · model-written summary
Azotobacter inoculation with 10^-4 M L-tryptophan gave maize root length 117% higher than control.
- Organ / stage
- maize rootse1
- Treatment
- Azotobacter inoculation in combination with 10G 4 M L-TRPe1
- Interactor
- Azotobacter
Azotobactere1symbiont - Outcome
- lengthe1
- Direction
- highere1
- Value
- 117e1
- Comparator
- controle1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Improving Growth of Maize Seedlings”
e1“Azotobacter inoculation in combination with 10G 4 M L-TRP gave maximum length and weight of maize roots, which was 117 and 60 percent higher than control, respectively”
Claim · model-written summary
Azotobacter inoculation with 10^-4 M L-tryptophan gave maize root weight 60 percent higher than control.
- Organ / stage
- maize rootse1
- Treatment
- Azotobacter inoculation in combination with 10G 4 M L-TRPe1
- Interactor
- AzotobacterAzotobactere1symbiont
- Outcome
- weighte1
- Direction
- highere1
- Value
- 60 percente1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Improving Growth of Maize Seedlings”
e1“Azotobacter inoculation in combination with 10G 4 M L-TRP gave maximum length and weight of maize roots, which was 117 and 60 percent higher than control, respectively”
Claim · model-written summary
Azotobacter with L-tryptophan gave shoot length 45.3% higher than control.
- Organ / stage
- shootse2
- Treatment
- Azotobacter in combination with 10G 4 M L-TRPe2
- Interactor
- AzotobacterAzotobactere2symbiont
- Outcome
- lengthe2
- Direction
- highere2
- Value
- 45.3e2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Improving Growth of Maize Seedlings”
e2“Results showed that maximum length and weight of shoots were recorded by applying Azotobacter in combination with 10G 4 M L-TRP which was 45.3 and 36.5 percent higher than control, respectively”
Claim · model-written summary
Azotobacter with L-tryptophan gave shoot weight 36.5 percent higher than control.
- Organ / stage
- shootse2
- Treatment
- Azotobacter in combination with 10G 4 M L-TRPe2
- Interactor
- AzotobacterAzotobactere2symbiont
- Outcome
- weighte2
- Direction
- highere2
- Value
- 36.5 percente2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Improving Growth of Maize Seedlings”
e2“Results showed that maximum length and weight of shoots were recorded by applying Azotobacter in combination with 10G 4 M L-TRP which was 45.3 and 36.5 percent higher than control, respectively”
Claim · model-written summary
Azotobacter culture Z4 had relatively higher auxin production than the other cultures tested.
- Material
- Azotobacter culture Z4e3
- Interactor
- AzotobacterAzotobactere3symbiont
- Outcome
- auxin productione3
- Direction
- highere3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Improving Growth of Maize Seedlings”
e3“Azotobacter culture Z4 gave relatively higher auxin production”
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