Abstract
Phosphorus (P) uptake and utilization by soybean (Glycine max (L.) Merrill) is essential for plant growth. Therefore, this experiment was conducted to evaluate the P effects on selected soybean varieties based on the seed oil content (SOC) and the seed protein content (SPC) and to assess the physiological responses associated with changes in shoot P-utilization efficiency (SPUE). The experiment was carried out during 2008 and 2009 with a split-plot design at the Agronomy Department, Kasetsart University, Bangkok, Thailand. The main plots were for tested three P levels in a nutrient solution (0.5, 1.0 and 2.0 mM P), with subplots for the three soybean cultivars, CKB1, SJ5 and CM60. The results indicated that at maturity, the P levels of 2.0 mM P decreased SPUE by 27% compared to that of 0.5 mM P (the control). SOC was not significantly affected by the P level. Relative to the control, the P nutrition levels of 1.0 and 2.0 mM P significantly decreased SPC by 4% and 5%, respectively. There were no significant differences in SOC between varieties. The SPC of CKB1 was 8% greater than that of SJ5 but showed no significant difference to that of CM60.
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Claims 7
Claim · model-written summary
2.0 mM P decreased shoot P-utilization efficiency by 27% versus 0.5 mM P.
- Taxon
- soybean
Glycine maxe2 - Treatment
- 2.0 mM Pe0
- Outcome
- shoot P-utilization efficiency (SPUE)e1
- Direction
- decreasede0
- Value
- 27%e0
- Comparator
- 0.5 mM Pe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the P levels of 2.0 mM P decreased SPUE by 27% compared to that of 0.5 mM P (the control)”
e1“shoot P-utilization efficiency (SPUE)”
e2“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
Phosphorus level did not significantly affect seed oil content.
- Taxon
- soybeanGlycine maxe2
- Treatment
- P levele0
- Outcome
- seed oil content (SOC)e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SOC was not significantly affected by the P level”
e1“seed oil content (SOC)”
e2“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
1.0 mM P decreased seed protein content by 4% versus control.
- Taxon
- soybeanGlycine maxe3
- Treatment
- 1.0e0
- Outcome
- seed protein content (SPC)e2
- Direction
- decreasede0
- Value
- 4%e0
- Comparator
- 0.5 mM Pe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the P nutrition levels of 1.0 and 2.0 mM P significantly decreased SPC by 4% and 5%, respectively”
e1“0.5 mM P (the control)”
e2“seed protein content (SPC)”
e3“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
2.0 mM P decreased seed protein content by 5% versus control.
- Taxon
- soybeanGlycine maxe3
- Treatment
- 2.0 mM Pe0
- Outcome
- seed protein content (SPC)e2
- Direction
- decreasede0
- Value
- 5%e0
- Comparator
- 0.5 mM Pe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the P nutrition levels of 1.0 and 2.0 mM P significantly decreased SPC by 4% and 5%, respectively”
e1“0.5 mM P (the control)”
e2“seed protein content (SPC)”
e3“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
Seed oil content did not significantly differ among cultivars.
- Taxon
- soybeanGlycine maxe1
- Outcome
- SOCe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no significant differences in SOC between varieties”
e1“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
CKB1 seed protein content was 8% greater than SJ5.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SPC of CKB1 was 8% greater than that of SJ5”
e1“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
CKB1 seed protein content did not differ significantly from CM60.
- Taxon
- soybeanGlycine maxe2
- Material
- CKB1e1
- Outcome
- SPCe1
- Comparator
- CM60e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“showed no significant difference to that of CM60”
e1“The SPC of CKB1”
e2“soybean (Glycine max (L.) Merrill)”
The same questions in other papers
phosphorus · quality: protein · Glycine max (soybean)Results differ
5 papers in the same direction as this paper · 27 in the opposite direction
- positive
- no effect
- positive
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See all 33 papers →phosphorus · nutrient: efficiency · Glycine max (soybean)Positive and negative results
5 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
15 papers more in this group
See all 19 papers →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.