Abstract
Abstract The preferential development of Brassica lateral roots for phosphorus (P) to forage for P fertilizer was observed by using alginate gel beads in which powdery dicalcium phosphate dihydrate (DCPD) was suspended (DCPD gel bead). The DCPD gel beads enabled to detect the characteristic root growth around them because of their larger diameter (1.5 cm) than that of standard fertilizer particles. The thin Brassica lateral roots completely encircled the DCPD gel beads and no soil area remained between the roots and the DCPD gel beads. This morphological plasticity of Brassica roots is highly suitable for improving the P recovery rate because even a few mm of soil with a high P retention capacity between a plant root and P fertilizer reduces the P recovery rate. The P recovery rate in the Brassica shoots exceeded 0.05 and the ratio of the shoot dry weight in the plot treated with DCPD gel beads to that in the control plot exceeded 10. Thus, the Brassica plants showed both a high P recovery rate and satisfactory growth in the P-deficient soil compared with other tested plants due to the complete contact between their roots and the DCPD gel beads. The preferential root proliferation for P was also observed in Fagopyrum esculentum Moench as well as Brassica plants among the 20 tested plants.
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Claims 6
Claim · model-written summary
Brassica lateral roots preferentially developed around DCPD gel beads.
- Organ / stage
- lateral rootse0
- Treatment
- DCPD gel beade0
- Outcome
- preferential developmente0
- Setting
- phosphorus (P)e0
BrassicaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The preferential development of Brassica lateral roots for phosphorus (P) to forage for P fertilizer was observed by using alginate gel beads in which powdery dicalcium phosphate dihydrate (DCPD) was suspended (DCPD gel bead)”
Claim · model-written summary
Brassica lateral roots completely surrounded DCPD gel beads, leaving no soil gap.
- Organ / stage
- lateral rootse0
- Outcome
- completely encircled the DCPD gel beads and no soil area remainede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The thin Brassica lateral roots completely encircled the DCPD gel beads and no soil area remained between the roots and the DCPD gel beads”
Claim · model-written summary
Phosphorus recovery in Brassica shoots exceeded 0.05.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The P recovery rate in the Brassica shoots exceeded 0.05”
Claim · model-written summary
Shoot dry weight under DCPD gel beads exceeded ten times the control.
- Organ / stage
- shoote0
- Treatment
- DCPD gel beadse0
- Outcome
- shoot dry weighte0
- Direction
- exceedede0
- Value
- 10e0
- Comparator
- control plote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the ratio of the shoot dry weight in the plot treated with DCPD gel beads to that in the control plot exceeded 10”
t0“Brassica”
Claim · model-written summary
Brassica plants had high phosphorus recovery and growth relative to other tested plants in deficient soil.
- Outcome
- high P recovery rate and satisfactory growthe0
- Direction
- highe0
- Comparator
- other tested plantse0
- Setting
- P-deficient soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Brassica plants showed both a high P recovery rate and satisfactory growth in the P-deficient soil compared with other tested plants due to the complete contact between their roots and the DCPD gel beads”
Claim · model-written summary
Fagopyrum esculentum also showed preferential root proliferation for phosphorus.
- Taxon
- Fagopyrum esculentum Moench
Fagopyrum esculentume0 - Organ / stage
- roote0
- Outcome
- preferential root proliferation for Pe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The preferential root proliferation for P was also observed in Fagopyrum esculentum Moench as well as Brassica plants among the 20 tested plants”
The same questions in other papers
phosphorus · growth · BrassicaPositive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
2 papers more in this group
See all 6 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.