Abstract
A study of the effect of soil-water stress and phosphorus level on the efficiency of phosphorus absorption (micrograms phosphorus per milligram oven-dry root per day) and growth by young wheat plants grown on a lateritic podzolic soil showed that absorption was not affected by increasing soil-water stress, provided the plants were not damaged by wilting. In experiments where the water-stress treatment was imposed for only a few days it was found that the rate of phosphorus absorption was reduced after the plants had been subjected to a period of wilting. The results indicate that available soil phosphorus was derived mainly from fine pores undrained at suctions approaching 15 atm. The concentration of available phosphate in these pores may have been considerably higher than earlier estimates of the phosphate concentration in the soil solution. The absorption of phosphorus increased with increasing soil phosphorus potential for all levels of water stress.
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Claims 5
Claim · model-written summary
Increasing soil-water stress did not alter phosphorus absorption unless wheat wilted.
- Taxon
- wheat plants
Triticum aestivumt0 - Treatment
- increasing soil-water stresse0
- Outcome
- absorptione0
- Direction
- not affectede0
- Qualifier
- provided the plants were not damaged by wiltinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“absorption was not affected by increasing soil-water stress, provided the plants were not damaged by wilting”
t0“wheat plants”
Claim · model-written summary
A period of wilting reduced subsequent phosphorus absorption in wheat.
- Taxon
- wheat plantsTriticum aestivumt0
- Treatment
- a period of wiltinge0
- Outcome
- rate of phosphorus absorptione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rate of phosphorus absorption was reduced after the plants had been subjected to a period of wilting”
t0“wheat plants”
Claim · model-written summary
Available soil phosphorus was inferred to come mainly from fine pores at nearly 15 atm suction.
- Taxon
- wheat plantsTriticum aestivumt0
- Outcome
- available soil phosphoruse0
- Qualifier
- fine pores undrained at suctions approaching 15 atme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“available soil phosphorus was derived mainly from fine pores undrained at suctions approaching 15 atm”
t0“wheat plants”
Claim · model-written summary
Phosphate concentration in these pores may have exceeded earlier soil solution estimates.
- Taxon
- wheat plantsTriticum aestivumt0
- Outcome
- concentration of available phosphate in these porese0
- Direction
- considerably highere0
- Comparator
- earlier estimates of the phosphate concentration in the soil solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of available phosphate in these pores may have been considerably higher than earlier estimates of the phosphate concentration in the soil solution”
t0“wheat plants”
Claim · model-written summary
Phosphorus absorption rose with soil phosphorus potential at every water stress level.
- Taxon
- wheat plantsTriticum aestivumt0
- Treatment
- increasing soil phosphorus potentiale0
- Outcome
- absorption of phosphoruse0
- Direction
- increasede0
- Qualifier
- for all levels of water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The absorption of phosphorus increased with increasing soil phosphorus potential for all levels of water stress”
t0“wheat plants”
The same questions in other papers
soil water · nutrient: content · Triticum aestivum (wheat)Positive and negative results
1 paper in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 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.