Abstract
Plant growth-promoting (Indole acetic acid producing, phosphate solubilizing and siderophore producing) and chemical fertilizer adaptive variants of endophyte Acidovorax valerianellae CCR1 (JQ424873) with cross nodulating Sinorhizobium fredii SSR1 (JQ424873) were blended with a half dose of fertilizers for integrated nutrient management (INM) to enhance the productivity of pigeon pea (Cajanus cajan). Plant attributes showed enhancement in the growth of pigeon pea when used with lower concentration of urea, diammonium phosphate (DAP), muriate of potash (MOP) and gypsum, termed as inducer doses determined by sub-lethal concentration (LC50). Plant parameters described as early and late phase of growth (days after sowing; DAS) were enhanced significantly as compared to control and found to be statistically significant. The enhanced plant growth and yield parameters revealed integrated effect of SSR1 and CCR1 when blended with a half dose of chemical fertilizers. The recommended dose of chemical fertilizers attained about 20% increase in yield over control whereas, blend of SSR1 and CCR1 reduced (half) dose of chemical fertilizers enhanced the average yield of the plant by 49–40% over the control. Thus, it is propounded that the increase in the pigeon pea production with the use of fertilizer adaptive endophyte and rhizobia was highly positive. The chemotaxis phenomenon proved both the bacteria as a voracious root colonizer, thereby improving the plant growth directly, hence, these were redefined as fertilizer adaptive bacteria (FAB).
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Claims 6
Claim · model-written summary
Lower fertilizer concentrations with bacterial variants enhanced pigeon pea growth.
- Taxon
- pigeon pea
Cajanus cajant0 - Treatment
- lower concentration of urea, diammonium phosphate (DAP), muriate of potash (MOP) and gypsume0
- Outcome
- growthe0
- Direction
- enhancemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant attributes showed enhancement in the growth of pigeon pea when used with lower concentration of urea, diammonium phosphate (DAP), muriate of potash (MOP) and gypsum”
t0“pigeon pea (Cajanus cajan L.)”
Claim · model-written summary
Early and late growth parameters improved significantly relative to control.
- Taxon
- pigeon peaCajanus cajant0
- Organ / stage
- early and late phase of growthe0
- Outcome
- early and late phase of growthe0
- Direction
- enhancede0
- Comparator
- controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant parameters described as early and late phase of growth (days after sowing; DAS) were enhanced significantly as compared to control”
t0“pigeon pea (Cajanus cajan L.)”
Claim · model-written summary
The blend of SSR1 and CCR1 with half-dose fertilizers enhanced growth and yield parameters.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- SSR1 and CCR1 when blended with a half dose of chemical fertilizerse0
- Interactor
- SSR1e0symbiont
- Second interactor
- CCR1e0symbiont
- Outcome
- plant growth and yield parameterse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The enhanced plant growth and yield parameters revealed integrated effect of SSR1 and CCR1 when blended with a half dose of chemical fertilizers”
t0“pigeon pea (Cajanus cajan L.)”
Claim · model-written summary
The recommended fertilizer dose raised yield about 20% over control.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- recommended dose of chemical fertilizerse0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 20%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The recommended dose of chemical fertilizers attained about 20% increase in yield over control”
t0“pigeon pea (Cajanus cajan L.)”
Claim · model-written summary
The SSR1 and CCR1 blend with half-dose fertilizer raised mean yield 49–40% over control.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- blend of SSR1 and CCR1 reduced (half) dose of chemical fertilizerse0
- Interactor
- SSR1e0symbiont
- Second interactor
- CCR1e0symbiont
- Outcome
- average yielde0
- Direction
- enhancede0
- Value
- 49–40%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“blend of SSR1 and CCR1 reduced (half) dose of chemical fertilizers enhanced the average yield of the plant by 49–40% over the control”
t0“pigeon pea (Cajanus cajan L.)”
Claim · model-written summary
Chemotaxis showed both bacteria to be root colonizers.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- root colonizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chemotaxis phenomenon proved both the bacteria as a voracious root colonizer”
t0“pigeon pea (Cajanus cajan L.)”
e2“integrated effect of SSR1 and CCR1 when blended with a half dose of chemical fertilizers”
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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.