Abstract
ABSTRACT The use of stimulants in the establishment of arbuscular mycorrhizal fungi has great potential in contributing to P uptake by plants. This study aimed to evaluate the effect of isoflavonoid formononetin as mycorrhization stimulant on soybean associated with phosphate fertilizer in Oxisols with intermediate (OPi) and low (OPl) phosphorus availability, in the Cerrado region of Piauí. The experiment in each soil consisted of randomized blocks design in a 4×4 factorial scheme, with four replications. The treatments comprised of four phosphorus doses (0, 26.66, 40 and 80 kg ha-1 P2O5), and four isoflavonoid formononetin doses (0, 0.5, 0.9 and 1.8 g kg-1 soybean seeds). The variables evaluated were soybean growth, yield, nodulation and mycorrhizal colonization rate. With the exception of mycorrhizal colonization rate in OPi, plant height and number of pods per plant in OPl, the other variables were not affected by the application of isoflavonoid formononetin, in both soils. Yield linearly increased with increase in the phosphorus doses in OPl, and presented agronomic efficiency of ~15 kg ha-1 grain for each kg ha-1 P2O5 applied to the soil.
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Claims 5
Claim · model-written summary
Formononetin affected soybean mycorrhizal colonization in OPi.
- Taxon
- soybean
Glycine maxt0 - Treatment
- application of isoflavonoid formononetine0
- Outcome
- mycorrhizal colonization ratee0
- Setting
- OPie0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the exception of mycorrhizal colonization rate in OPi, plant height and number of pods per plant in OPl, the other variables were not affected by the application of isoflavonoid formononetin, in both soils.”
t0“SOYBEAN”
Claim · model-written summary
Formononetin affected plant height in OPl.
- Taxon
- soybeanGlycine maxt0
- Treatment
- application of isoflavonoid formononetine0
- Outcome
- plant heighte0
- Setting
- OPle0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the exception of mycorrhizal colonization rate in OPi, plant height and number of pods per plant in OPl, the other variables were not affected by the application of isoflavonoid formononetin, in both soils.”
t0“SOYBEAN”
Claim · model-written summary
Formononetin affected pod number per plant in OPl.
- Taxon
- soybeanGlycine maxt0
- Treatment
- application of isoflavonoid formononetine0
- Outcome
- number of pods per plante0
- Setting
- OPle0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the exception of mycorrhizal colonization rate in OPi, plant height and number of pods per plant in OPl, the other variables were not affected by the application of isoflavonoid formononetin, in both soils.”
t0“SOYBEAN”
Claim · model-written summary
Other evaluated variables were unaffected by formononetin in both soils.
- Taxon
- soybeanGlycine maxt0
- Treatment
- application of isoflavonoid formononetine0
- Outcome
- other variablese0
- Direction
- not affectede0
- Setting
- both soilse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the other variables were not affected by the application of isoflavonoid formononetin, in both soils”
t0“SOYBEAN”
Claim · model-written summary
Soybean yield increased linearly with phosphorus dose in OPl, with about 15 kg grain per kg P2O5 applied.
- Taxon
- soybeanGlycine maxt0
- Treatment
- increase in the phosphorus dosese0
- Outcome
- Yielde0
- Direction
- increasede0
- Value
- ~15 kg ha-1 grain for each kg ha-1 P2O5e0
- Setting
- OPle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield linearly increased with increase in the phosphorus doses in OPl, and presented agronomic efficiency of ~15 kg ha-1 grain for each kg ha-1 P2O5 applied to the soil.”
t0“SOYBEAN”
The same questions in other papers
phosphorus · yield · Glycine max (soybean)Positive and negative results
302 papers in the same direction as this paper · 42 in the opposite direction · 10 reporting no difference from an alternative
- negative
- positive
- negative
351 papers more in this group
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