Abstract
Diagnosis and prognosis of molybdenum (Mo) deficiencies in black gram crops by plant analysis is difficult because Mo standards have not been set and tested in the field. Therefore, critical Mo concentrations, for the diagnosis of Mo deficiency at early flowering and for diagnosis and prognosis at pod filling in black gram, were determined in two glasshouse experiments by examining the relationship of Mo concentrations in young leaves and nodules to shoot nitrogen content or seed dry matter in plants treated with seven levels of Mo supply on a Mo-deficient sandy loam. In severely Mo-deficient plants, shoot dry matter (DM) and shoot nitrogen (N) content were depressed. Molybdenum concentrations in plant parts increased with increasing Mo supply and were closely related to shoot N content. shoot DM, and seed DM. Critical Mo concentrations for diagnosis of hi0 deficiency were obtained from the relationship between N content and &lo concentrations in leaves and nodules. and for prognosis of Mo deficiency were obtained from the relationship between seed yield and Mo concentrations in plant parts. Critical Mo concentrations were much higher in nodules than in leaves, and among young leaf blades, they increased with decreasing leaf age. For diagnosis of Mo deficiency, blades of the leaf immediately older than the youngest fully expanded leaf (YFEL+lb) and nodules are recommended plant parts. Their respective critical concentrations were 22 and 9600 ng Mo/g DM at flowering, and 22 and 3378 ng Mo/g DM at initial pod set. Molybdenum concentrations in the YFEL+lb and nodules at podding were also related to seed production at maturity. Recommended critical h10 concentrations in the YFELflb and nodules at initial pod set for the prognosis of IbIo deficiency for seed DM were 18 and 3000 ng Mo/g DM respectively.
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Claims 13
Claim · model-written summary
Severe Mo deficiency depressed shoot dry matter and nitrogen content.
- Taxon
- black gram
Vigna mungot0 - Outcome
- shoot dry matter (DM) and shoot nitrogen (N) contente0
- Direction
- depressede0
- Qualifier
- severely Mo-deficient plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In severely Mo-deficient plants, shoot dry matter (DM) and shoot nitrogen (N) content were depressed.”
t0“black gram”
Claim · model-written summary
Plant-part Mo concentrations increased with Mo supply.
- Taxon
- black gramVigna mungot0
- Treatment
- Mo supplye0
- Outcome
- Molybdenum concentrations in plant partse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Molybdenum concentrations in plant parts increased with increasing Mo supply and were closely related to shoot N content. shoot DM, and seed DM.”
t0“black gram”
Claim · model-written summary
Plant-part Mo concentrations were closely related to shoot nitrogen content, shoot dry matter and seed dry matter.
- Taxon
- black gramVigna mungot0
- Compound
- Molybdenume0
- Outcome
- shoot N content. shoot DM, and seed DMe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Molybdenum concentrations in plant parts increased with increasing Mo supply and were closely related to shoot N content. shoot DM, and seed DM.”
t0“black gram”
Claim · model-written summary
Critical Mo concentration was higher in nodules than leaves.
- Taxon
- black gramVigna mungot0
- Organ / stage
- nodulese0
- Outcome
- Critical Mo concentrationse0
- Direction
- much highere0
- Comparator
- leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Critical Mo concentrations were much higher in nodules than in leaves, and among young leaf blades, they increased with decreasing leaf age.”
t0“black gram”
Claim · model-written summary
Among young leaf blades, critical Mo concentrations increased with decreasing leaf age.
- Taxon
- black gramVigna mungot0
- Organ / stage
- young leaf bladese0
- Outcome
- theye0
- Direction
- increasede0
- Qualifier
- decreasing leaf agee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“among young leaf blades, they increased with decreasing leaf age.”
t0“black gram”
Claim · model-written summary
Leaf blades immediately older than YFEL and nodules are recommended for deficiency diagnosis.
- Taxon
- black gramVigna mungot0
- Outcome
- blades of the leaf immediately older than the youngest fully expanded leaf (YFEL+lb) and nodulese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For diagnosis of Mo deficiency, blades of the leaf immediately older than the youngest fully expanded leaf (YFEL+lb) and nodules are recommended plant parts.”
t0“black gram”
Claim · model-written summary
At flowering, the diagnostic critical Mo concentration in YFEL+lb was 22 ng Mo/g DM.
- Taxon
- black gramVigna mungot0
- Organ / stage
- YFEL+lbe1
- Outcome
- critical concentrationse0
- Value
- 22 and 9600 ng Mo/g DMe0
- Qualifier
- at floweringe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Their respective critical concentrations were 22 and 9600 ng Mo/g DM at flowering, and 22 and 3378 ng Mo/g DM at initial pod set.”
t0“black gram”
e1“For diagnosis of Mo deficiency, blades of the leaf immediately older than the youngest fully expanded leaf (YFEL+lb) and nodules are recommended plant parts.”
Claim · model-written summary
At flowering, the diagnostic critical Mo concentration in nodules was 9600 ng Mo/g DM.
- Taxon
- black gramVigna mungot0
- Organ / stage
- nodulese1
- Outcome
- critical concentrationse0
- Value
- 9600 ng Mo/g DMe0
- Qualifier
- at floweringe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Their respective critical concentrations were 22 and 9600 ng Mo/g DM at flowering, and 22 and 3378 ng Mo/g DM at initial pod set.”
t0“black gram”
e1“Critical Mo concentrations were much higher in nodules than in leaves, and among young leaf blades, they increased with decreasing leaf age.”
Claim · model-written summary
At initial pod set, the diagnostic critical concentration in YFEL+lb was 22 ng Mo/g DM.
- Taxon
- black gramVigna mungot0
- Organ / stage
- YFEL+lbe1
- Outcome
- critical concentrationse0
- Value
- 22 and 3378 ng Mo/g DMe0
- Qualifier
- at initial pod sete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Their respective critical concentrations were 22 and 9600 ng Mo/g DM at flowering, and 22 and 3378 ng Mo/g DM at initial pod set.”
t0“black gram”
e1“For diagnosis of Mo deficiency, blades of the leaf immediately older than the youngest fully expanded leaf (YFEL+lb) and nodules are recommended plant parts.”
Claim · model-written summary
At initial pod set, the diagnostic critical concentration in nodules was 3378 ng Mo/g DM.
- Taxon
- black gramVigna mungot0
- Organ / stage
- nodulese1
- Outcome
- critical concentrationse0
- Value
- 3378 ng Mo/g DMe0
- Qualifier
- at initial pod sete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Their respective critical concentrations were 22 and 9600 ng Mo/g DM at flowering, and 22 and 3378 ng Mo/g DM at initial pod set.”
t0“black gram”
e1“Critical Mo concentrations were much higher in nodules than in leaves, and among young leaf blades, they increased with decreasing leaf age.”
Claim · model-written summary
Mo concentrations in YFEL+lb and nodules at podding were related to mature seed production.
- Taxon
- black gramVigna mungot0
- Organ / stage
- YFEL+lb and nodulese0
- Compound
- Molybdenume0
- Outcome
- seed production at maturitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Molybdenum concentrations in the YFEL+lb and nodules at podding were also related to seed production at maturity.”
t0“black gram”
Claim · model-written summary
At initial pod set, 18 ng Mo/g DM in YFEL+lb was recommended as a prognostic threshold for seed dry matter.
- Taxon
- black gramVigna mungot0
- Organ / stage
- YFELflbe0
- Outcome
- critical h10 concentrationse0
- Value
- 18 and 3000 ng Mo/g DMe0
- Qualifier
- at initial pod sete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recommended critical h10 concentrations in the YFELflb and nodules at initial pod set for the prognosis of IbIo deficiency for seed DM were 18 and 3000 ng Mo/g DM respectively.”
t0“black gram”
Claim · model-written summary
At initial pod set, 3000 ng Mo/g DM in nodules was recommended as a prognostic threshold for seed dry matter.
- Taxon
- black gramVigna mungot0
- Organ / stage
- nodulese0
- Outcome
- critical h10 concentrationse0
- Value
- 3000 ng Mo/g DMe0
- Qualifier
- at initial pod sete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recommended critical h10 concentrations in the YFELflb and nodules at initial pod set for the prognosis of IbIo deficiency for seed DM were 18 and 3000 ng Mo/g DM respectively.”
t0“black gram”
The same questions in other papers
molybdenum atom · nutrient: content · Vigna mungo (black gram)Results agree
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