Abstract
Heterogeneity within the root environment results in differential growth within root systems. The response of five Phaseolus vulgaris L. cultivars to non-uniform root aeration was evaluated. Three treatments were applied to a split root system for a period of 72 h. Treatments consisted of an aerated control, a non-aerated control (both halves non-aerated, using N2). and localized anoxia (one-half the root system aerated and the remaining half subjected to N2). Shoot and root growth were reduced in the anoxic control but not in the aerated control or localized anoxia treatment. Root growth was greatest in the aerated portion of the localized anoxia treatment for all genotypes. Contributions of the root components to the compensatory responses differed depending on the plant cultivar examined. The growth of branched and lateral roots present before the treatment period increased by 65% in line 31908. A 50% increase in the growth of lateral roots which emerged during the treatment period occurred in another line (Swan Valley). Other genotypes responded in an intermediate manner. These observations indicate differences in cultivar responses to localized soil stress.
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Claims 6
Claim · model-written summary
Shoot and root growth of bean cultivars were reduced in the anoxic (non-aerated) control compared with the aerated control.
- Taxon
- Phaseolus vulgaris L.
Phaseolus vulgarise0 - Treatment
- anoxic controle1
- Outcome
- Shoot and root growthe1
- Direction
- reducede1
- Comparator
- aerated controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“five Phaseolus vulgaris L. cultivars”
e1“Shoot and root growth were reduced in the anoxic control but not in the aerated control or localized anoxia treatment”
Claim · model-written summary
Shoot and root growth were not reduced under localized anoxia (one half of the root system aerated) relative to the aerated control.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarise0
- Treatment
- localized anoxia treatmente1
- Outcome
- Shoot and root growthe1
- Direction
- but note1
- Comparator
- aerated controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“five Phaseolus vulgaris L. cultivars”
e1“Shoot and root growth were reduced in the anoxic control but not in the aerated control or localized anoxia treatment”
Claim · model-written summary
Root growth was greatest in the aerated portion of the localized anoxia treatment for all genotypes.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarise0
- Organ / stage
- aerated portione1
- Treatment
- localized anoxia treatmente1
- Outcome
- Root growthe1
- Direction
- greateste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“five Phaseolus vulgaris L. cultivars”
e1“Root growth was greatest in the aerated portion of the localized anoxia treatment for all genotypes”
Claim · model-written summary
In line 31908, the growth of branched and lateral roots present before the treatment period increased by 65%.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarise0
- Material
- line 31908e1
- Outcome
- growth of branched and lateral roots present before the treatment periode1
- Direction
- increasede1
- Value
- 65%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“five Phaseolus vulgaris L. cultivars”
e1“The growth of branched and lateral roots present before the treatment period increased by 65% in line 31908”
Claim · model-written summary
In the line Swan Valley, the growth of lateral roots that emerged during the treatment period increased by 50%.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarise0
- Material
- Swan Valleye1
- Outcome
- growth of lateral roots which emerged during the treatment periode1
- Direction
- increasee1
- Value
- 50%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“five Phaseolus vulgaris L. cultivars”
e1“A 50% increase in the growth of lateral roots which emerged during the treatment period occurred in another line (Swan Valley)”
Claim · model-written summary
The contributions of root components to the compensatory responses differed depending on the cultivar.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarise0
- Outcome
- Contributions of the root components to the compensatory responsese1
- Qualifier
- differed depending on the plant cultivar examinede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“five Phaseolus vulgaris L. cultivars”
e1“Contributions of the root components to the compensatory responses differed depending on the plant cultivar examined”
The same questions in other papers
flooding · growth · Phaseolus vulgaris (common bean)Positive and negative results
15 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
13 papers more in this group
See all 17 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.